MSK Exam Notes

Shared by: xiuliliaofz
Categories
-
Stats
views:
423
posted:
1/13/2011
language:
English
pages:
48
Document Sample
scope of work template
							MSK CCC 1: DDX of Cervical Pain
Cervical Radiculopathy – direct irritation of cervical nerve root from:
        Osteophyte, space occupying lesion, increased stress or tension in foraminal area

S/S:    Arm pain
        Clumsiness
        Pain in Trapezius, Paraspinal, Interscpular muscles
        Dermatomal paresthesias or hypesthesia

Cervical Spondylosis – various degenerative diseases of spine, ankylosis of adjacent vertebral bodies,
degeneration of intervertebral disc from:
        Age related degeneration, trauma or genetics

S/S:    Decreased ROM
        Pain in paracervical, trapezius, interscapular muscles
        Pain with upward gaze or rotation of neck, extension of neck

Progression leads to:
       Dehydration of the disc, thinning of disc space, protrusion of disc
       Buckling/dysfunction of intralaminar ligaments
       Abnormal loading and fxn of joint surface
       Compensatory Changes (ex. Osteophytes)

PE:     Spasm of cervical m.  knotty or firous texture of muscles
        Loss of normal cervical lordosis
        Somatic dysfunction

Cervical Degenerative Joint Disease – degenerative/hypertrophic changes in bone/cartilage of 1+ joints
with progressive wearing down of opposing joint surfaces => distortion of joint position

DDX of non-traumatic cervical pain
       Somatic Dysfunction                               Cervical Spondylosis/DJD
       Cervical Radiculopathy                            Visceral Referred Pain
       Mechanical Referred pain                          Pathologic Fracture
       Infection

Diagnosis:
       X-rays: AP/lat/oblique views                      Myelogram
       EMG                      MRI                      CT

Treatment approach for cervical pain
       OMT, PT, Cervical traction, Medications, Surgical referral
Cervical Dermatomes/Muscle Groups
C5 – elbow flexors
C6 = wrist extensors
C7 – elbow extensors
C8 - finger flexors
T1 – small finger abductors

Hints for PE:
     If during gross motion testing, the head automatically sidebends and rotates in opposite
        directions, think OA &/or Sternocleidomastoid (SCM).
     If during gross motion testing, the head automatically sidebends and rotates in same direction,
        think single SDs (perhaps a few of them).
     If restriction in flexion, think trapezius; restriction in extension SCM & strap muscles (muscles
        that connect to the hyoid).
     If dysphagia (sensation of swallowing difficulties), think strap muscles and hyoid.
     If radiation of pain to upper extremities, think entrapment (spondylosis, scalenes, first rib
        dysfunction, herniated disc).
     If radiation of pain to occiput - many muscles, occipital nerves.
     If headache with pressure and tight headband sensation, think suboccipital and occipitalis
        muscles and greater & lesser cranial nerves.
     Any kind of symptom, think somatic dysfunction.
     If dizziness or syncope, especially on head turning, think compromise of carotids &/or vertebral
        arteries. Be Careful
     In cases of respiratory disease, think scalenes & sternocleidomastoid (secondary muscles of
        respiration) and C3,C4, & C5 (attachment of scalenes and origin of phrenic nerves)
     If radiation of pain to the ear or jaw, think SCM and stylohyoid

MSK CCC 2: Imaging of spine
Why imagine the spine?
      trauma, pain, disturbance in sensation/movement, neoplastic disease workup

Techniques:
       Plain radiographs
               Cervical: AP, lat, obliques, open mouth (c1-c2), swimmer’s (c7)
                       Assess lines on lateral (anterior, posterior, spinolaminar, posterior spinous)
               Thoracic: AP, lat
               Lumbar: AP, lat, obliques, lateral sacrum
               Sacrum/coccyx: AP, lat, obliques for SI joints
       CT + CT thin section - Better for bony structures
               Needed for many thoracic cases because of superimposed structures seen on xray
               Lumbar – disc or bone abnormality
       MRI - Better soft tissue structures: cord, ligaments, discks, marrow
               Cervical – axial + sagittal + coronal without contrast
               Thoracic – not good due to pulsating structures
               Lumar – cord, disc abnormalities, bone contusion, ligamentous injury
        Bone scan – look for multiple areas of involvement or unsuspected lesions

Traumatic lesions – most from blunt trauma
      Indications for imaging: pain, neurologic deficit, distracting injuries, altered consciousness, high
      risk MOI, vascular injury
      Initial screen = plain films, then follow up with a spiral CT

Compression fracture – in thoracic/lumbar spine
Jefferson Fracture – in bony ring of C1
Dens fractures (Type I, II, and III)
Flexion teardrop fracture
Burst fracture – of C3-C7 from axial compression injury, common to injure cord due to posterior
displacement of fragments

Signs of instability:
         Interspinous, interlaminar widening
         >50% compression of vertebral body
         >20° of kyphosis                                Interpediculate widening
         >2 mm of translation                            Dislocation

Degenerative spine disease – major cause of neck and back pain
        Cervical between C5-6, C6-7
        Dessication  disk bulge  protrusion  herniation  extruded disk
Osteophytes
Spondylolysis – defect of parsinterarticularis
        Shows collar on the scotty dog
Sondylolisthesis – anterior displacement of the upper vertebral body
        MC at L4-5 or L5-S1
Extradural processes:
        Disc protrusion/spondylosis
        Metastasis, B9, malignant neoplasms
        Infection, Trauma
Intradural extramedullary:
        Meningiomas
        Schwannomas
        Embryonal tumors
        Infection, Trauma
Intramedullar:
        Demyelinating disease
        Tumors: gliomas, ependymomas, hemagioblastomas
        Hydrosyringomyelia
        Infection, Trauma

MSK CCC 3: Benign Bone Tumors
Questions to ask in a possible tumor:
       Age – certain tumors for certain age groups
       Duration of complaint
       Rate of growth
       Pain associated with the mass – B9 are not painful
       History of trauma
       Personal/family hx of cancer
       Systemic signs or symptoms

Tumors are named by tissue origin and location within the bone:
Know: Tumors that recur and tumors that can become BAD

Osteochondroma from bone and cartilage “harmatomas”
       MC B9 bone tumor that arise near the ends of long bones
       10-20 years of age
       Secondary malignant chondrosarcoma arises in 10%
       X-ray shows bony outgrowth from cortex (most of tumor is in cartilage cap so opacity on xray is
       smaller than the mass feels clinically)
       Tx:     Necessary if tumor is near a nerve, causes pain (fxs), disturbs growth or becomes malig

Hereditary multiple osteochondromatosis
       AD inheritance, lots and lots of tumors
       Risk for chondrosarcoma development is higher

Fibrous Dysplasia – defect in osteoblastic differentiation and maturation
        Any bone can be affected with medullary bone replaced by fibrous tissue
        Appears “ground-glass” on xray
        CT scan can show expansion of the bone due to intramedullary expanding lesion
        *Monostotic is 7-10x times more common than polyostotic
                Associated with systemic conditions (precocious puberty/McCune-Albright/myxomas)
        Tx:     conservative primarily to prevent deformity
                Surgical indications: severe/progressive, nonunion, painful, fx

Chondroma – uncommon B9 tumor within bone marrow that forms mature cartilage
      Men in 2-4th decade, asymptomatic – found incidentally as lytic lesions with stippled calcification
      when x-rays are taken for something else
      ~small bones of hand/feet usually
        ~can be mistaken for chondrosarcoma
        Tx:    asymptomatic requires no tx, but need to rule out progressive

Non-ossifying fibroma – nonneoplastic, asymptomatic
       Usually found in children with 75% occurring in the 2nd decade
       Femur > Tibia at juxtaepiphyseal region
       Larger lesions presents as a pathologic fracture
       Xrays show lesion migrating away from epiphyseal plate with time
       Normally regress spontaneously – treat only if it has a pathologic fx

Chondroblastoma “Codman’s tumor”
      Rare B9 tumor originating from cartilage
      See pain wherever the tumor is, especially at ends of long bones
      People age 10-20 years
      X-ray: cyst containing spots of calcification that must be excised
      Tx:     sx, bone graft, PT – tumor may recur

Chondromyxofibroma
      Rare, occurs before age 30
      Located near end of long bones
      Xray: lytic lesion with well defined margins in the metaphysic of leg
              Radiolucent area is a giveaway
      Tx:     excision or curettage

Osteoid osteoma – MC benign osteoid-forming tumor
       Primarily seen in long bones (proximal femur), classically causes pain at night in young adults
       Xrays: new bone formation with sometimes a lucent spot
       Tx:      NSAIDs for pain

Benign giant cell tumor – in epiphyses and erode bone into soft tissues, known to recur
       S/S:     pain at adjacent joint, visible mass, swelling, bone fracture, limited ROM, fluid
                accumulation

Osteoblastoma – selflimited producing osteoid and bone
       Occurs in vertebrae, metaphysic/diaphysis of long bones, sometimes pelvis
       S/s:    pain of long duration, swelling/tenderness, tumors of the spine
       Bonescan:        increased isotope uptake on bone scan

Endochondroma – B9 cartilage tumors
      Commonly found in tubular bones of hand/foot that may cause unsightly swelling/fx
      Be able to recognize the radiographs of this for test.
      S/S:    no symptoms but could have hand pain if large tumor/fx
MSK CCC 4: Osteoporosis, Osteoarthritis
Osteoporosis
Indications that acute back pain may involve underlying conditions
     Patient demographics
              Age > 70 yr
              History of cancer
              Glucocorticoid or immunosuppressive drug therapy
              Alcohol or I.V. drug abuse
     Historical features
              Weight loss
              Fever
              Pain increased by rest
              Bowel or bladder dysfunction
     Neurologic symptoms
              Saddle block anesthesia
              Progressive motor weakness

Osteoporosis Vertebral Fractures
       Acute or chronic?
       Vary in degree from mild wedges to complete compression
       Degree of compression does not correlate to amount of pain
       Some fractures could have occurred gradually, and will not cause acute pain

       Stable or unstable?
       Most are stable -- rest
       Diagnosed by spinal radiograph  do a DEXA scan to confirm osteoporosis
        kyphosis or  height

Treatment: NSAIDS, calcitonin, OMT, PT, Educaiton, support groups

       Surgery to rebuild their spines:
       Vertebroplasty
       Kyphoplasty



Osteopenia – weak bone that doesn’t necessarily fit the osteoporosis requirements
       T score < -1 but > -2.5
Osteoporosis – T-score < -2.5

Risk factors: low calcium, smoking, alcoholism, meds
Age                                Women                                                  Men

Puberty to mid-20s & 30s           Bone mass increases rapidly, reaching peak bone mass


Mid-30s to 40s                     A few years of stability, then slow bone loss          No risk factors
                                                                                          bone loss 1% / yr
Mid-40s to 50s                     Menopause w/o estrogen replacement, then rapid
                                   bone loss  7% / yr for                                With risk factors (smokers, i
                                    7 yrs                                                bone loss  6% / yr

Mid-50s to late life               Continuing bone loss of 1% to 2% / yr


Epidemiology of Osteoporosis Fractures:
     High prevalence
            1.25 million female & 500,000 male hip fractures worldwide (1990)
            250,000 hip & 500,000 vertebral fractures in U.S. annually

Causes of Osteoporosis:
       *Estrogen deficiency
       Calcium deficiency & secondary hyperparathyroidism
       Androgen deficiency
       Changes in bone formation (getting older)
       Secondary causes/meds (steroids, diuretics, heparin, etc.)

Evaluation:
        BMD, assess for secondary causes of bone loss, biochemical markers
        BMD measure – best predictor of fracture if in lowest quartile
               DEXA – method of measurement

Treatment: PREVENT! Modify risk factors!
       Wt-bearing exercise – walking!
       Ca+2: 1200mg/day
       Vitamin D: 400-800 IUday regardless of sunlight exposure
       Estrogen replacement: worried about side effects (PMS-like syndrome), risk of
       endometrial/breast cancer
               Big difference between natural and equine estrogen.
       Bisphosphonates: stops the resorption of bone
               Bad dentition! Do not give! Can cause osteonecrosis of the jaw!
       Selective Estrogen receptor modulators
               Prevent osteoporosis
               Antagonists in breast/uterine tissue = less risk of cancer development
        Calcitonin: hormonal inhibitor of bone resorption

Osteoarthritis/Degenerative Joint disease = MC type of arthritis
        Layer of cartilage breaks down and wears away
        Degree of abnormality on x-ray and clinical findings/symptoms do not always correlate
Spinal – intervertebral disks, vertebral bodies, posterior apophyseal joints
        Nerve root compression = radicular pain

Degenerative changes:
      Apophyseal joint
      Spondylosis – degenerative DISK disease
      Spondylolysis – classic OA change!
      Spondylolisthesis – one slips forward
      Spondylitis

Risk factors:
         Age – older you get, higher the risk
         Female – hand/knee
         Joint trauma – more than likely develop DJD in that joint
         Repetitive stress
         Obesity – highest correlation with knee OA

Pathology:
       Most striking changes are seen in load-bearing areas of the articular cartilage
       Early stages: cartilage is thicker
       Progression: joint surface thins, cartilage softens, integrity of surface is breached
       Deep cartilage ulcers extending to bone

Treatment:
       Reduce joint loading, exercise, PT, intraarticular therapy, sx, drugs

Spinal stenosis
        Lumbar spine MC in middle-aged/eldery

Classic Syndrome: neurogenic intermittent claudication
         Rule out: PVD by checking pulses in their feet

S/S: Dull to severe pain in buttocks
        Numbness, weakness, paresthesias in lower extremities
        Relieved by bending forward, sitting, lying down.
        Gets worse when going up hills/stairs
Treatment:
       OMT, PT, wt change, posture change, pain medications with limited usefulness
       Inversion table
       Laminectomy

MSK CCC 7: Nontraumatic disorders of hand/wrist
H&P
Inspection
        Carrying angle – normally 10-15° with F > M carrying angle
Palpation
Motion Testing

Anatomy – bones: Some Lovers Try Positions That They Can’t Handle

Ganglion cyst
       Soft tissue mass of hand/wrist usually attached to a tendon sheath or joint
       MC scapholunate joint
       Lining herniates out of the ligamentous defect causing a “cyst”
                Full of jelly-like fluid due to inflammation
S/S:   Vague wrist pain, mildly tender mass that may be reducible
       Fusiform mass freely mobile, + transillumination, may be mistaken for bony prominence
       Common hx of repetitive wrist loading

Tx:     Alleviate symptoms/cause of problem
        Aspiration (seldom curative)
        Injection with steroid
        Surgery

Mallet Finger – DIP joint injury
        Flexion deformity caused by loss of continuity of extensor mechanism to distal phalanx
        Common in 4th/5th digits
        MOA: sudden forceful flexion of DIP joint (blunt object)

S/S:    Pain, swelling, lack of extension at DIP joint
X-rays: Bony avulsion off dorsal proximal distal phalanx + volar joint subluxation
Tx:     Splinting DIP in full extension, encourage proximal joint motion for 6-8 weeks
        Surgery if fracture fragment involves >30% of articular surface or volar subluxation

Trigger Finger
        Stenosing tenosynovitis due to repetitive finger flexion in any finger (MC thumb, middle, long
        fingers)
S/S:
X-rays: Not needed
Tx:     Avoid aggravating factors, US, local friction massage, NSAIDs
        Corticosteroid injection every 6-8 wks, splint at night
        Gets worse – consider surgical release of sheath

Thumb MCP – Ulnar collateral ligament Tear
      Tear of UCL of thumb = “gamekeeper’s thumb, skier’s thumb”
      Hyperabduction of thumb MCP joint (after a FOOSH)
      Cannot perform an effective pinch

S/S:    Pain over UCL area, weak/painful pinch
        Tenderness, swelling over ulnar aspect of thumb MCP
X-rays: Fx associated?
        Stress x-ray shows >20 of instability compared with contralateral side, complete tear likely

        Stener lesion – occurs in complete UCL tears
                Cannot heal normally  residual instability

Tx:     Immobilization or functional bracing with MCP in slight flexion for 4-6 wks
        Sx if completely torn

DeQuervain’s Tenosynovitis
      Inflammation of the tendons and synovial sheaths, esp 1st dorsal compartment of wrist
      Common in repetitive motion activities

S/S:    Pain in 1st dorsal compartment with gripping/rotational motions
        + Finkelstein test
Tx:     Splinting in thumb spica, avoid repetitive activity, OMT, NSAIDs, steroid injections*, Sx.

Intersection Syndrome (do not confuse with DeQuervain’s!)
        “Squeaker’s wrist” – tendon movement is sometimes audible
        Overuse injury due to repetitive twisting motions  irritation of overlapping tendons
                Wt lifters, skiers, canoeists, raking, shoveling

S/S:    Pain along dorsoradial wrist worsening with gripping/twisint motions
        Local crepitus with wrist extension
Tx:     Avoid repetitive activity, thumb spica split, NSAIDs, OMT, PT/OT, injections
        Rarely need surgery

Dupuytren’s Disease – NOT a consequence of activity!!!!
        Insidious onset of thickening and contracture of the palmar fascia with isolated nodular
        thickening  skin on distal side drawn up into a fold  fingers become progressively flexed at
        MCP/PIP joints

S/S:    +Table top test of Hueston
Tx:     Hyperextension exercises of the fingers
        With 30° contracture – consider Surgery

Nerve entrapment injuries
Carpal tunnel syndrome– median nerve entrapment
S/S:    Tingling in fingertips, nb/pain at night waking the patients  referred to elbow/shoulder/neck
        +Tinel’s                  +Phalen’s               +EMG            +NCV
        Late findings: wkness of abductor pollicus brevis, atrophy of thenar eminence, l/o sensory in
        median nerve distribution
Tx:     Correction of MOA, splitting wrist neutrally (at night), NSAIDs, OMT, Injections, Sx

Cubital Tunnel syndrome – ulnar nerve entrapment in posterior-medial aspect of elbow
MOA: repetitive elbow flexion activities
S/S:    Tenderness in cubital tunnel
        + Tinel’s test +EMG/NCV        Wk/sensory loss in intrinsic (ulnar nerve distribution)
Tx: Avoid repetitive flexion, PT/OMM/ Splinting/NSAIDs/ Sx

Guyson’s Canal Entrapment – ulnar nerve entrapment medial to carpal tunnel
       Between pisiform and hook of hamate
MOA: Repetitive trauma (mass lesion, direct trauma to hook of hamate, cyclists’ palsy, jackhammer
       use)
S/S:   point tenderness, sensory loss of ulnar 1 ½ digits
DDx: hook of hamate fracture
Tx:    rest, OMT, avoidance, NSAID, splint, sx

Triangular Fibrocartilage Complex
MOA: Fall on pronated hyperextended wrist
        Twisting w/ palmar rotation
        Repetitive forced ulnar deviance
        Distal radius fracture
S/S:    Ulnar sided pain, clicking sensation
X-rays: Ulnar variance (Positive) – less space so ulnar deviance leads to more trauma
Tx:     Injection*  splint/cast, rest, NSAIDs, sx, reduce stressors

Kienbock’s Disease (Idiopathic Avascular Necrosis)
MOA: repetitive compressive forces affecting the blood supply
       Dominant wrist in younger men and older women
S/S:      Vague aching wrist pain with stiffness, tenderness/swelling at lunate, painful ROM
X-rays:   initially normal  eventually collapse of lunate
MRI:      study of choice for early diagnosis
Tx:       Conservative = symptom control, immobilization
          Failed conservative = surgical intervention (lunate excision, fusion, revascularization)

MSK CCC 8: Nontraumatic disorders of Forearm, Elbow, and Wrist pain
H&P
Inspection
        Normal carrying angle = 10-15°
Elbow Anatomy
        Median nerve passes through two heads of the pronator teres
        Ulnar nerves through cubital tunnel
        Radial nerve – divides into superficial and deep branch
                Deep branch passes through Arcade of Frohse (most susceptible to injury)
PE: ROM, DTRs, muscle testing, special tests

Elbow
Anterior Pain
Biceps Tendonitis
MOA: repetitive overloading of biceps, result of excessive elbow flexion and supination
S/S:    Increased pain on resisted forearm supination
        Anterior elbow pain with flexion/supination
        Wkness secondary to pain, tender biceps tendon to palpation
DDX:
Tx:     Activity modification, stretching/strengthening/OMM
        Rest/ice, NSAIDs, bracing

Posterior pain
Triceps Tendonitis
MOA: Overuse due to overloading triceps by repetitive extension (throwing/hammering)
S/S:    Pain at posterior elbow, tenderness at/above insertion of triceps
        Increased pain with resisted extension of elbow
X-ray: Could see: degenerative calcification, hypertrophy of ulnar, triceps traction spur
DDx:
Tx:     activity modification, stretching/strengthening/OMM
        Rest/ice, NSAIDs, bracing

Olecranon Bursitis “miner’s elbow,” “student’s elbow”
MOA: repetitive compression causes irritation to the bursa
S/S:   Painless swelling of the elbow, no erythema
DDX: Septic bursitis (infxn)
Tx:     Protection
        Aspiration (risk for sepsis), culture if suspected sepsis

Lateral pain
Epicondylitis “tennis elbow”
MOA: repetitive overuse of wrist extensors, 10X more frequent than Golfer’s elbow
Risks:
S/S:    Aching over lateral epicondyle
        Difficulty with wrist extension
X-ray: Ca deposits in extensors due to bleeding from microtears/chronicity
Tx:     Activity modification, stretching/strengthening/OMM
        Rest/ice, nsaids, bracing, steroid injections, sx (last resort)

Medial pain
Epicondylitis “Golfer’s elbow”
MOA: repetitive tension overloading of wrist flexors
S/s:   Painful inflammation over medial epicondyle, wkness secondary to pain
       Tenderness at flexor origin                              - Tinel’s
       Increased pain with resisted wrist flexion and forearm pronation
X-ray: Rarely done, but if done negative except for some calcifications due to microtears
DDx:
Tx:    Activity modification, stretching/strengthening/OMM

MCL (Ulnar collateral ligament) SPRAIN
       Most important stabilizer of valgus stress
MOA: repetitive valgus stress  microtears/ruptures
       Pitching/throwing, racquet sports
S/S:   Gradual onset of medial elbow pain that is relieved by rest
       Tenderness over humeroulnar joint (at sublime tubercle)
PE:    valgus stress, moving valgus stress, “milking” maneuver
Tx:    Strengthening/stretching, OMM
       Rest, NSAIDs, PT
       Fail rehab  reconstruct anterior band of MCL

Ulnar nerve entrapment (Cubital tunnel syndrome)
MOA: repetitive elbow flexion
S/S:   +Tinel’s, Elbow pain radiating to wrist, 4th/5th fingers, +EMG, +NCV
       Parethesias on ulnar side of hand, wkness/sensory loss in intrinsic later
Tx:    Avoid repetitive flexion
       Rest, NSAIDs, OMT, PT, Splinting in flexion at night, decompression

Pronator syndrome – pure sensory
MOA: trapping of median nerve between heads of pronator teres
     Racquet sports, throwing
S/S: Pain, paresthesias, reduced sensation in median n. distribution
     Resisted pronation of forearm reproduces symptoms, - Phalens, + Tinels
Tx:  Modification of activities, splinting, OMT, sx

Anterior interosseous syndrome – mostly motor
MOA: strenuous or repetitive elbow motion compressing the anterior interosseous (branch of median
nerve) by the deep head of the pronator teres
S/S:    Wkness or loss of flexion of DIP joint of thumb index finger
Tx:     Depends on cause, lifestyle modification, splinting, PT, OMT, NSAIDs, surgical decompression

If advanced  osteophytes can form on the olecranon and in the olecranon fossa

MSK CCC 10: Lupus vs. Rheumatoid Arthritis
Systemic Lupus Erythematosus – chronic, recurrent, fatal multisystem inflammatory disorder
Clinical Findings:
         Migratory arthritis and arthralgia that is symmetrical and polyarticular
                 *monoarticular – think infxn*
         Predilection for knees, carpal joints (PIP joints)
         Morning stiffness for minutes vs hours in RA
         Degree of pain > physical findings
         Tenosynovitis: epicondylitis, rotator cuff tendinitis, Achilles tendinitis, posterior tibial tendinitis,
         plantar fasciitis

Diagnosis:
       No single diagnostic marker
       Lupus presents with one or several of the following:
               Unexplained nonspecific symptoms such as fever, fatigue, wt loss, or anemia
               Photosensitive rash
               Arthralgia, arthritis
               Raynaud phenomenon
               Serositis
               Nephritis or nephritic syndrome
               Neurologic symptoms (seizures or psychosis)
               Alopecia
               Phelbitis
               Frequent miscarriages

Laboratory testing:
       CBC, creatinine, albumin, ESR, CRP, UA, 24 hour urine
       ANA (negative makes it unlikely – good for ruling out, not for positive diagnostic)
        Antiphospholipid antibodies for hypercoagulability
        *Anti dSDNA
        *Anti Smith Abs
                *+ abs confirm a diagnosis of SLE

Treatment:
       1st line for pain + inflammation – NSAIDs or acetaminophen
                 Contraindicated in lupus nephritis (also COX-2)

        Inflammation as prominent feature = NSAIDs (ibuprofen, naproxen, nabumetone)
               Use with PPI if at risk for NSAID-induced GI toxicity

        Pain without inflammation = Acetaminophen
                Contraindicated in liver disease/alcoholism

        Hydroxychloroquine (antimalarial) – for joint symptom relief, prevention of clinical relapse
                For articular manifestations, rashes, and fatigue
        Corticosteroids – used infrequently, only for inflammation – not pain
                Risk of developing osteoporosis
                Goal – use for acute flare-ups but get dose reduced as quickly as possible
        Anakinra – IL1 receptor antagonist – for severe arthritis patients unresponsive to other rxs
        Methotrexate – resistant inflammatory arthritis
                Methotrexate + prednisone = more effective than pred alone
        Amitriptyline – TCADs – when pain is unresponsive to other measures



Rheumatoid Arthritis – chronic systemic inflammatory disorder of unknown origin
      *Causes inflammation of synovium causing chemicals to be released to thicken the
      synovium/damage the cartilage/bone or affected joint  inflammation  pain + swelling

Clinical findings: Polyarticular, symmetrical, joints/tendons involved with destruction + synovitis
                  May be relapsing/remitting
                  Symmetric Joints involved: shoulders, ankles, wrists, hands, elbows, MCPs

Extraarticular findings:
        Anemia                                    Scleritis
        Fatigue                                   Splenomegaly
        Sub-Q nodules                             Sjogren’s syndrome
        Pleuritis                                 Vasculitis
        Pericarditis                              Renal Disease
        Neuropathy
       Patho:
                Joint destruction starting with cartilage  erode bone/ligaments/tendons = deformation
                Fibroblasts/monocytes secrete proteinases that break down collagen/proteoglycans

       Diagnosis:
              At least 4 of the following criteria:
                       Morning stiffness >1 hr, for > 6 wks
                       Swelling of 3+ joints for at least 6 wks
                       Swelling of wrist, MCP, PIP joints for at least 6 wks
                       Symmetric joint swelling
                       Hand x-ray typical of RA including erosions/ bony decalcification
                       Rheumatoid nodules (subQ)
                       Rheumatoid factor*
                               Present in majority of pts (w/o RF may be seronegative, but can still have RA)
       Labs:
              Rheumatoid Factor
                       70-80% of pts, also found in CT disorders/endocarditis
              Anti-Citruline containing peptides (CCP)
                       Also seen in active TB

       Complications:
              Joint destruction
              Deformities
              Boutonniere’s
              Swan neck’s
              Ulnar deviation                                Rheumatoid nodules
              Tendon ruptures                                Baker’s (popliteal) cyst
              Tenosynovitis of C1 transverse ligament producing C1-C1 instability/subluxation

       Treatment:
              Early diagnosis + early aggressive treatment!! -- key to minimizing disability
              Immunosuppressing – be more aggressive in treating infxns in these folks!
              DMARDS (methotrexate, leflunomide, hydroxychloroquine)
              NSAIDs/Steroids
              TNF-alpha agents
              Physical/Occupational Therapy
                                                Comparing Lupus to RA

Feature                               Lupus                                 Rheumatoid arthritis

Arthralgia                            Common                                Common
Arthritis                             Common                                 Deforming

Symmetry                              No                                     Yes

Joints involved                       PIP>MCP>wrist>knee                     MCP>wrist>knee

Synovial hypertrophy                  Rare                                   Common

Synovial membrane abnormality         Minimal                                Proliferative


Synovial fluid                        Transudate                             Exudate

Subcutaneous nodules                  Rare                                   35 percent

Erosions                              Very rare                              Common

Morning stiffness                     Minutes                                Hours

Myalgia                               Common                                 Common

Myositis                              Rare                                   Rare

Osteoporosis                          Variable                               Common

Avascular necrosis                    5 to 50 percent, often at hip          Uncommon

Deforming arthritis                   Uncommon                               Common

Swan neck                             10 percent, reducible                  Common, not reducible


Ulnar deviation                       5 percent, reducible                   Common, not reducible



        *RA causes EROSIVE arthritis vs. SLE causing a NON-EROSIVE arthritis*

        DDX of inflammatory Arthritis:
           • Infections                                               • Seronegative spondyloarthridities
          Bacterial (Lyme, bacterial endocarditis)                    Ankylosing spondylitis
          Viral                                                       Psoriatic arthritis
           • Reative                                                  Inflammatory bowel disease
          Rheumatic fever                                             • Rheumatoid Arthritis
          Reiter’s                                                    • Inflammatory Osteoarthritis
          Enteric infections
                                                             Still’s disease
                                                             Behcet’s syndrome
    • Crystal-induced arthritis                              Relapsing polychondritis
    • Systemic rhemmatic illnesses                            • Other systemic illnesses
   SLE                                                       Sarcoidosis
   Systemic sclerosis                                        Familial Mediteranean fever
   Systemic vasculitis                                       Malignancy
   Polymyositis                                              Hyperlipoproteinemias
   Dermatomyositis

MSK CCC 11: Trauma to shoulder/elbow
Proximal Humeral Fractures
       Young high energy & old low energy
       45% of all humerus fx, 77% occur in female

Consequences/associated injuries:
       LOM, LOreduction, AVN, heterotopic bone
       Associated with (rotator cuff, nerve, vascular, scapula and clavicular injuries

Anatomy:
Proximal humerus – broken down in 4 parts
        Head, greater, lesser tuberosity, shaft
Blood supply to humerus:
        Anterior humeral circumflex/*arcuate artery (ascending branch)
        Posterior humeral circumflex
Nerve damage: Test Question
        Axillary, suprascapular, musculocutaneous (all from brachial plexus)
Muscle damage:
        Rotator cuff: supraspinatus, infraspinatus, subscapularus, teres minor
        Deltoid, pectoralis, long head biceps

X-ray Workup:
       Trauma Series: AP, Axillary, Scapular Y (oblique views)
CT:
       Articular fractures (impression, head split) & Glenoid fractures

Tx:
Closed treatments
        Considerations – age, displacement, fxnal demand, arm dominance, ability to salvage with
arthroplasty later if needed
        Methods:
        Sling                          Sling + Swath
        Hanging cast                     Abduction pillow

ORIF (test question – indications)
        Indications: Displaced GT fx > 5mm, fx that involves articular surface, surgical neck fx, displaced
        anatomical neck in young pt, displaced 3-/4- part fractures

Hemiarthroplasty - best for elderly, head splits, AVN
       Indications – young/middle age with severe head split or extruded anatomic neck OR elderly
       Technique – beach chair position with deltopectoral approach, retain tuberosity fragments,
bone graft from head if necessary
                Ends up with unpredictable results from a functional standpoint

Complications of proximal humerus fracture
       Avascular necrosis – due to disrupted arcuate artery
       Adhesive Capsulitis – almost always develops, minimized by early motion and controlled PT
               May be fixed with arthroscopic release

Acromioclavicular Joint Injuries
Anatomy
       Clavicle – S shaped bone
       SC joint, AC joint, CC ligaments with muscles attached : SCM, trap, pec major

       AC joint – between acromion and lateral clavicle stabilized on all sides by ligaments (superior AC
most important)
       CC ligs – at distal clavicle (suspend Upper extremity)
                Trapezoid + conoid = stronger than AC, provide vertical stability to AC joint

MOI for AC joints
       Moderate/high-energy traumatic impacts to the shoulder
PE:
       Neurovascular exam (cervical roots)
       UE motor/sensation + Shoulder ROM

Radiographic Evaluation:
       AP, Zanca (orthogonal view)
       Axillary, Stress views

Types of AC separations (for test)
        Type I – AC ligament sprained with all ligaments/joint/muscles intact
        Type II – vertical displacement, with joint disrupted
        Type III - AC joint dislocated and the shoulder complex displaced inferiorly
        Type IV - AC joint dislocated and clavicle displaced posteriorly into or through the trapezius
        muscle, seen on axillary view
        Type V - AC joint dislocated and gross disparity between the clavicle and the scapula (100-300%)
        Type VI - AC joint dislocated and clavicle displaced inferior to the acromion or the coracoid
        process

Treatment
         Type I/II – conservative with rare surgery for type II
         Type III – may or may not need acute surgery, conservative tx unless an overhead arm user
         Type IV, V, VI - Surgery
Indications for Late surgical Treatment of AC injuries (if a Type I-III was treated and failed)
         Pain, weakness, deformity

Clavicle Fractures
<5 mm – acceptable results at 5 years
>20 mm shortening associated with increased risk of nonunion, poor functional outcome

Treatment
       Nonoperative – difficult to reduce clavicle fxs by closed means
                They will heal, but are they healing correct? May not have union of fxed ends
                Simple sling until signs of healing  ROM exercises
       Plate Fixation – ORIF (open reduction internal fixation)
                For acute displaced fractures and nonunions
                Plate applied superiorly or inferiorly
                new gold standard
Neurological Complications
       Brachial plexus symptoms treated by reduction/fixation of fx, resection of callus

Radial Head Fractures
Elbow Anatomy
        3 joints: Humeral-ulnar, humeral-radial, proximal radial-ulnar

Valgus Elbow Stability – from MCL and radial head

MOI – usually a fall with axial load to elbow + valgus force
       Could be combined with high energy injuries: elbow dislocation, coronoid fx, collateral lig injury

PE:
        Neurovascular
        Valgus stress, PLRI (valgus, supination, axial load)
        Distal radio/ulnar joint stability
        Forearm rotation
Radiographic Evaluation:
       X-rays: AP, Lat, Oblique
       MRI: ligamentous injury

Classification: 3 Types increasing in severity – not responsible for these for test

Treatment: radial Head Fixation
       ORIF difficulties:
               Communition is worse than anticipated
               Fixation into the head is difficult

Essex - Lopresti Lesions
         Defined as longitudinal disruption of forearm interosseous ligament, usually combined with
         radial head fx and/or dislocation plus distal radioulnar joint injury
         Difficult to diagnose
         Treatment requires restoring stability of both elbow and Distal Radial Ulnar Joint components of
         injury.
         Radial head excision in this injury will result in disabling proximal migration of the radius.



Complications of Tx:
       Improperly placed headward
       Loss of fixation
       Posterior interosseous nerve injury
       Elbow Stiffness

MSK CCC 12: Thoracolumbar Spine Fractures
90% occur between T11 and L4, with 60% between T12-L2
Majority due to MVA

Biomechanics
Burst Fractures – from compression
Wedge Fractures – from Flexion
Fracture Dislocations – from Rotation
Seatbelt Type Fracutres – from shear

Thoracic spine – stabilized by ribs, MC flexion/compression injuries
Thoracolumbar junction– predisposed to rotation/axial compression injuries
        B/w rigid thoracic and mobile lumbar spine
        TL experiences compression when T goes into kyphosis and L goes to lordosis
        Lacks ribs, transition point between Anterior facets and inward facets
Classification
         Denis Three Column Model – to explain injuries/guide treatments
                 Columns: Anterior, middle*, and posterior
                 Instability = failure of 2+ columns
                 Middle distinguishes 4 types of spinal fractures
                          1st degree = mechanical
                          2nd degree = neurological
                          3rd degree = mechanical + neurological

Imaging:
       Plain film series – most important with lateral being most informative
                Pedicle or TP splaying
                Fracture on lateral
                Vertebral body widening
                Listhesis
       CT – bony anatomy
       MRI – for spinal cord/ligament anatomy

Evaluation
Hx – blunt trauma must have spine cleared
Exam – sans clothes, full neuro exam (rectal tone, perianal sensation), log roll for bruising, deformity,
tenderness/crepitus, etc.
Imaging
        X-rays – AP/Lat for all spinal injuries (excludes the most dangerous pathology)
        CT – abdomen/pelvis for trauma management, abdominal can pick up TL fxs
        MRI – upon request, useful for soft tissue and cord injuries

Classification of TL fractures:
Flexion-Compression
                  MC type, failure of anterior column, generally stable
         Tx:      Hyperextension orthosis, kyphoplasty, vertebroplasty, sx stabilization

Burst
                Retropulse into canal + fx of posterior elements
                Failure of anterior and middle columns = unstable
                Widening of intrapedicular distance = decreasd body height
                MC T10-T12
        Tx:     Decompress/stabilize with neurological deficits
                Without neuro deficit – based on stability of fracture

Seat Belt/Chance
                Hyperflexion-Distraction of posterior elements
                Middle/posterior columns fail
        S/S:    Posterior tenderness, hematoma, interspinous widening + abdominal injuries
        Tx:     Osseous – bracing
                Ligamentous - fusion

Fracture-Dislocation
                All 3 columns under compression, distraction, rotation, or shear forces
        Types:
                A – flexion-rotation (3/4 with neuro deficit)
                B – shear (all with neuro deficit)
                C – flexion-distraction (3/4 with neuro deficit)
        Tx:     Rapid mobilization and rehab!

Treatments
       One column = stable
       Two columns = mixed, if neuro injury  surgery
       Three columns = surgery
              Decompress neurological elements (remove structures causing compression)
              Stabilize spine
              Spine fusion
              Corpectomy with retroperitoneal flank approach to decompress
              Kyphosplasty for stable compression fractures – relieves pain

MSK CCC 13: Peds UE Disorders
Pediatrics vs. Adults
        Overuse injuries are common
        Bones bend before they break
                 Greenstick fractures,
                 Plastic deformity
                 Torus fracture/Buckle fracture
        Peds bones have more collagen/cartilage – improves resilience/reduced tensile strength
        More metabolically active = rapid callus formation, rapid union of fx, high potential to remodel

History – Age is very important for DDX
        Lots of Falls
Inspection
Physical Exam
        ROM – supinate, pronate

Ossification Centers of Elbow – growth plates
        Could look like fracture patterns on x-ray, but may be growth plates that hurt
         Heal in a clockwise pattern
C - capitellum
R – radial head
I – internal/medial epicondyle
T - trochlea
O - olecrenon
E – external/lateral epicondyle

Fat Pad Signs
        Anterior – anatomic
        Posterior – pathologic (75% chance of occult fx) – may not see any boney signs, but good chance
        they have a fracture
                MC occult fxs: Supracondylar > proximal ulnar > lateral condyle

Salter-Harris Classification – do not memorize for test, but useful for clinical years




                                                    I and V often missed on x-rays

Little League Elbow Syndrome
         Overuse – due to excessive valgus stress, pain at medial epicondyle
         MC in baseball, gymnastics

MOI:    Overuse/fatigue  altered biomechanics  medial traction (valgus stress) lateral
        compression -> microtrauma  overuse

Tx:     prevention! Rest, ice, NSAIDs, OMM, PT

Radial Head Subluxation/Dislocation “nursemaid’s elbow”
        MC < 6 years/old, refuses to use arm held in a flexed position against body
MOI: Sudden traction on extended + pronated arm, radial head slips under annular ligament

Tx: Never requires surgery, reduction, arm sling  use as tolerated, prevent recurrence

Congenital Radial Head Dislocation
       MC congenital deformity in elbow, found incidentally or following an injury
       60% have other abnormalities
       Typically lose ability to supination/pronation
       Does not necessarily need treatment
Radial Head/Neck Fractures
        MC 9-15 yrs old, more likely to fracture neck
        70% have MCL injury at elbow
MOI: FOOSH injury
Inspection: Ecchymosis, swelling
ROM: pain w/ supination/promotion, ↓ROM, crepitus
X-rays: AP, lat, oblique, CT
Mason Classification – do not need for test

Supracondylar Fracture
        MC children’s elbow fracture (10% of childhood fx overall)
MOI: FOOSH injury (extension injury)
        10-20% also have neurologic injury (anterior interosseous nerve is MC injured)
                 Can they make the “OK” sign with their fingers?”
S/S:    Swelling, localized tenderness, proximal depression of triceps
X-rays: AP, Lateral (look for anterior humeral line, proximal radial line)
Gartland Classification – NOT for test

Complications
       Neurovascular – nerve damage (median, anterior interosseous, radial, brachial artery)
       Compartment Syndrome
       Malunion “gunstock deformity” – due to mal-reduction at time of surgery, cosmetic > functional

Lateral condyle Fractures
         MC 5-7 years/old
MOI – FOOSH with varus force
S/S:     Pain, decreased ROM, localized tenderness

Medial Condyle Fractures
       MC 7-15 yrs
MOI – acute valgus stress
S/S:   Ulnar n. injury common

Forearm Fractures – to shaft of radius/ulna (night stick injury)
MOI: FOOSH

Monteggia – proximal 3rd of ulna with radial head dislocation
      Median/radial nerve injury, presents with obvious dislocation, very complex – needs sx

Distal fractures – 35-45% of all fractures in children
MOI: FOOSH
Transverse fractures of radius:
Colles’ – dinnerfork deformity, dorsal displacement of distal fragment, median n. damage
Smith – reverse colles, volar displacement of distal fragment, fall on flexed wrist
Greenstick – clinical diagnosis, cast with possible of recurrence
Galeazzi – fx distal radius with disruption of radioulnar joint

Congenital Radio-Ulnar Synostosis – do not remember for test

MSK CCC 14: Disorders of Thoracic Spine, Clavicles and Rib cage
Chest Wall
Costochondritis – chest pain, dull pain worsened by movement/respiration
        Tenderness along costochondral joints, no swelling
        Tx: rest, nonsteroidal meds
Tietze syndrome – rare form often at 2nd rib

*Pectus carinatum

Pectus excavatum – posterior asymmetric depression of the sterum
        Normal 1st, 2nd manubrium
        May cause anterior indentation of the heart, usually comes with congenital cardiac deformities

Poland Syndrome – congenital anomaly, not very common
        Absence of hypoplasia of unilateral pectoralis muscle with syndactyl (fingers grown together)
        Possible absence of associated ribs

Barrel Chest – AP diameter > transverse diameter, seen in patients with emphysema
        Ribs become horizontal, sternum forward, senile kyphosis
        *Expiratory phase inhibited (increased)

Rib Fractures – trauma, osteoporosis, could be palpable
        Self-limited, lots of pain 4-6 weeks and then pain disappears

Flail Chest – multiple rib fractures
         *Develop paradoxical movement of chest wall!
         Medical emergency, may be associated with pneumothorax, severe trauma

Atrophy of Myopathy of Chest Wall

Cicatrix of the Chest
         Burns may serious limit chest excursion = decreased respiratory volumes

Rickets
        Vitamin D deficiency  multiple bony deformities
        *Rachitis rosary along chest wall – failure of bones to harden
        Harrison groove or sulcus above pot belly

Rib notching – due to collateral circulation intercostals artery dilation from cardiac problems
        Dilation of arteries wears away the ribs
        Coarctation of the aorta & Neurofibromatosis*

        Dock’s sign – due to collateral circulation 4-8 which anastomose with the internal mammary
        artery supplying the descending aorta = erosion of costal groove by dilated intercostals arteries

Sternal malformations
        Suprasternal
        Foramen with cleft

Cervical Ribs – anomalous accessorib rib (eve’s rib)
        From C7 transverse process
        Small or full rib that can cause impingement syndromes, Thoracic outlet syndromes (+Adson’s)
        90% are asymptomatic

Bifid ribs – usually not a problem                                Supranumery ribs (Gorilla rib – 13th)

Thoracic Spine
       Exam: observe, palpate, ROM testing

Thoracic Kyphosis – MC from osteoporosis*
        No lateral curvative
        someone younger – metabolic/congenital, hyperparathyroidism, ankylosing spondylitis

Osteoporosis and Fractures
       Frequently in thoracic spine, MC cause of thoracic fx is osteoporosis
       *Anterior Wedging of vertebral body contributes to kyphosis, not always trauma

Scoliosis – could cause restricted lung diseases if severe
         Weird AP diameter

Arthritis
         MC is OA
         RA – leads to chronic respiratory failure due to spinal problems
         Psoriatic

Anklylosing Spondylitis
           If seen in thoracic – a late finding
           HLA-B27, if seronegative worsens with age
           Inflammatory changes + new bone formation
           Begins with sacroiliac are and progresses superiorly
           “poker spine” and *bamboo spine” – causing back pain b/c spine is encased in calcium
           Other symptoms: anterior uveitis, vascular problems as it’s a connective tissue disease

Clavicle
           *80% of fractures occur in the middle third which lacks ligamentous support
           Pay attention to LNs: supraclavicular (gastric ca), infraclavicular

AC Joint Dislocation – tear of coracoclavicular ligament
        Complete dislocation = sx

Clavicle Dysostosis – incomplete ossification of the clavicles = abnormalities of shoulders/ rib cage
Cleidocranial Dysostosis – lack of clavicle development

MSK CCC 16: DDX Acute lumbar Pain
Low back pain = pain affecting the lumbar segment of the spine
       Acute < 3 months, Chronic >3+ months
       14.3% of new patient visits are for LBP, 13 million for chronic LBP
       60-90% of lifetime incidence, most expensive cause of work-related disability
       Only a small % of pts will ever experience lumbar radiculopathy or sciatica as a result of LBP
       *Strongest predictor for future back pain is a history of prior back pain.

Red flags for a patient with back pain:
        Major trauma mechanism                              Age >50 or < 20
        Hx of cancer                                        Cauda equine syndrome
        Atherosclerotic disease                             Use of corticosteroids
        Hx of osteoporosis                                  Constitutional symptoms

PE
           No one test, look above/below, palpate, test ROM, do some provocative tests
           CLUES: pain with backward bending
                  Radiation or reproduction of pain with certain maneuvers
                  Differentiate between lumbar, sacrum, pelvis, and hip problems

           Localize the problem:
                   Standing flexion test  seated flexion test
                   Double leg raise (SI vs. LS)
                   Goldthwaite’s test – SLR + palpation (SI vs LS)
Lumbosacral mechanics
      Sacrum and lumbar spine move in opposite directions
      Lumbar flexion  sacral extension, etc.
      Lumbar rotates R  sacrum rotates L
      Lumbar sidebends R  sacrum takes on an ipsilateral oblique axis

Ligaments and Fascia
       Stabilize, set motion limits (subject to fatigue failure)
       SI ligaments have mechanoreceptors to gauge strain
       Thoracolumbar fascia transfers load from trunk to legs

Pain Generators:
       Discogenic                               Stenosis
       Facet                                    Spondylolysis-listhesis
       Soft tissue (muscle, ligament, tendon, capsule)

Lumbar tests
       Nerve tension tests:
               SLR
               Bowstring/cram
               Lasegue
               Braggard’s/Sicard’s
               Slump
               Nachlas
               Bonnet’s
               Buttock
       Malingering tests
               Flip test
               Hoover
               Axial compression
               Simulated rotation

Acute Lumbar Sprain “Mechanical back pain”
       Acute injury to soft tissues with no neurologic component
       85% of patients, never will ID the pain generator

Iliolumbar Ligament Sprain
        Refers pain to anterior thigh or groin, easy to miss
        Palpate or inject for diagnosis

        Tx: Acute – OMT, active rest, SI belt
          Chronic – prolotherapy, ablation, SI belt, OMT
Facet Syndrome – mimics pars fx
        Focused pain, worse w/ extension
        Dx:     Standing/seated Kemp’s test
                Hyperflexion test
        Tx: therapeutic exercise, PT, OMT, prolotherapy

Lumbar somatic dysfunction

Lumbar disc herniation
      Usually preceded by bouts of varying degrees and duration of back pain
      Pain eventually radiates to the leg (shooting/stabbing)
               Dependent on level of nerve root irritation:
               Higher (L3/L4)  groin or anterior thigh
               Lower (S1)  calf or bottom of foot
               L5 – MC, lateral/anterior thigh and leg pain
      Eval: MRI, CT + myelograph
      Surgical indications: cauda equine syndrome, progressive neurologic deficit, persistent
      bothersome sciatic pain despite convservative management for 6-12 weeks.
               Contraindications: unrelenting back pain, incomplete workup, inadequate conser tm

Lumbar Discitis
      Infxn of the disc post surgery or from hematogenous spread
      Increasing pain/stiffness + fever
      Eval: MRI, Labs (CBC, ESR, CRP)
      Tm:       Aggressive workup, surgical referral, long term antibiotics

Spondylolisthesis – defect in pars interarticularis that leads to top vertebrae moving more anterior to
the one below it, MC at L5-S1, then L4-L5
        Type I: Congenital
        Type II: Isthmic – during 1st/2nd decades
                 MC occurs at time of adolescent growth spurt
                 Focal back pain and radicular pain with larger slips, some pts are asymptomatic
                 Tight hammies, lumbar muscle spasm
                 Larger slips: dermatomal weakness/radiculopathy
                 Extension = provoked pain
        Type III: Degenerative F:M = 5:1, >40 years of age, MC at L4-L5
                 Insidious onset pain with radiation to posterior upper thighs, chronic  progressive
                 Extension = provoked pain, sometimes involves reflex changes
        Type IV: Traumatic
                 More likely to have neurologic compromise due to severe slipping
        Type V: Pathologic
Grading: 1 – 5 with 5>100% slip and 1 with 0-25% slip
Risk factors:
         Athletic activityes                       Congenital defects              Age
         MC in boys, but females that get it get it worse and probably will need surgery
         Younger patients are at higher risk for progression
                 Do serial radiographs every 6 months
         High grade slips require surgery due to pain + neuro compromise

Imaging:        Xrays – looking for scotty dog, bone scan, CT, MRI

Tx:     PT, Bracing, OMT (NOT in acute spondy), injections, surgery

Lumbar Spondylolysis – defect in pars interarticularis

Pars Interarticularis Fracture – pars fracture
        “collar on the scotty dog” on plain films
        Focused pain that is worse with extension
        Tx: active rest, brace/PT, OMT

Lumbar Spinal Stenosis – neurogenic intermittent claudication
      MC middle-aged, elderly population
      Bony encroachment or nonosseous encroachment by ligaments, discs, etc.
      S/S:     begin/worsen with ambulation or standing, relieved with sitting/lying down
               Back pain 1st  leg fatigue, pain, numbness, wkness
      Eval: Pheasant’s/Homer Pheasants Test
               Bicycle Test (neural vs. circulatory claudication)
      Tx:      normally surgical decompression



MSK CCC 17: DDX Hip, Pelvic Pain
To develop a DDX:
       List of possible diagnosis
       Know anatomy and physiology
       Appropriate hx
       PE to match the working diagnosis
       Choose further work up based on the conditions you think are most likely

Anterior hip pain
        OA                                                       Nerve entrapment
        Inflammatory Arthritis                                   Sports hernia
        Osteitis pubis                                           Muscle strains
      Femoral neck stress fracture                               Tendinosis
      Acetabular labral tear                                     Referred pain
   Osteoarthritis and inflammatory arthritis –
           Both have gradual onset, morning symptoms, worsening with activity, stiffness (gel
              phenomenon)
           Osteoarthritis tends to have decreased motion on internal rotation and extension
           Inflammatory conditions are associated with abnormal blood tests ( ESR), white blood
              cells in the joint fluid and other joint involvement, perhaps skin or bowel symptoms
              (rheumatoid usually doesn’t hit the hips)
ancer
      Some start with bone: osteoid osteoma, sarcoma
      Some mets TO bone: breast, prostate, lung, kidney, thyroid
              Associated with constitutional symptoms, night pain, original site symptoms

Other causes of Groin Pain
        Intraabdominal disorders
        GU abnormalities
        Referred lumbosacral pain from lumbar disc disease
        Hip Joint disorders

Avulsion Fractures – such a forceful contraction that some bone is pulled off

Common Hip Problems
     Groin Strain
     Hernias
     Iliopsoas Bursitis
     Snapping Hip

Muscle Strains and Tendinosis

Delayed Onset Muscle Soreness
    • Diagnosis is by history 24-48 hours after exertion. Muscles are sore. No distinct areas of pain as
       in acute strains. Usually bilateral (unless a unilateral overuse – like arm-wrestling…)
    • Rhabdomyolysis – Can present like delayed onset muscle soreness. Usually associated with
            Being immobilized for a prolonged period
            Acute dehydration with overuse
            Diagnosis is with a blood test – looking for elevations of creatine phosphokinase (CPK)

Trauma due to Anterior Hip Pain
       Greater Trochanteric Bursitis
       Labral tear
       Avulsion Fxs
Lateral Hip & Thigh Pain

Common Hip Problems
     Hip Pointer
     Meralgia Parethestica
     Iliotibial Band and Tensor Fascia Latae Syndrome

Buttock and Posterior Thigh Pain
        Sciatica
        SI joint and Ligaments
        Gluteal strain
        Gluteus medius weakness – due to overuse, associated with SI dysfunction
        Hamstring strain – due to acute overstretching, running, sprinting
                  Local pain, deformity, poor ROM & strength

Piriformis Syndrome
Dislocation – direct blow with hip abducted
        Posterior: short leg, hip adducted, severe pain, inability to move, foot points to other leg
        Anterior: abducted, short, points away from other leg
        Complications: Avascular necrosis

MSK CCC 18: Adult hip pain – refer to lecture slides for cases and answers

MSK CCC 19: Congenital/Ped Disorders of Lumbar/Thoracic Spine
Myelomeningocele – localized failure of the embryonic neural tube to close properly

Chiari II Malformation

Tethered Cord

Congenital Deformities of the Spine

Congenital Scoliosis
Idiopathic Scoliosis
Leg Length Discrepancy
Infant and Juvenile scoliosis
Congenital Kyphosis
Congenital Lordosis
Spondylolysis/Spondylolisthesis

MSK CCC 20: Peds LE disorders
Rotational Deformities
        Intoeing
        Metatarsus Adductus
        Clubfoot
        Tibial Torsion
        Medial Femoral Torsion
        Outtoeing

Angular Deformities
        Blount disease

Foot Deformities
       Clubfoot
       Cavus Foot
       Calcaneovalgus Foot
       Pes Planus

Hip disorders
        Developmental Dysplasia of the Hip
        Slipped Capital Femoral epiphysis
        Legg-Calve-Perthes Disease
        Coxa Vara and Valga

Toewalking

MSK CCC 21: DDX Limping child without fever
Developmental Dysplasia of the Hip –involve proximal femur/acetabulum
F/P:     occurs in 1.5% of neonates
         Risks: female, +Fa Hx, breech birth, multiple gestation, 1st prego, fat baby, oligohydramnios,
         clubfoot, caucasian
         L hip > R hip
Pathophys:        early disruption of relationship b/w femoral head and acetabulum, inadequate contact =
                  neither forms normally
                  Could be due to high levels of estrogen/relaxin in females
Clinical Findings:
         Ortolani maneuver – to reduce a dislocated hip
         Barlow maneuver – to determine if hip is dislocatable
         + Galeazzi/Allis sign – shortened thigh, decreased adduction

        Typical dislocation – majority, in infants w/ no other problems, a developmental disorder
        Teratologic dislocations – due to underlying NM disorder, occur in utero
Eval:
        PE! If abnormal  Ultrasound in coronal or transverse planes or hip x-rays
        Lines drawn: Hilgenreiner, Perkins, Sheton (disruption here suggest DDH)
Tm:     Restore normal relationship b/w femoral head/acetabulum
        Paclik harness to keep hips in flexion/abduction until clinical/radiographs are normal (<6mos)
        >6 months – may require a closed reduction

Slipped Capital Femoral Epiphysis – Salter-Harris type 1 fx through proximal femoral physis due to
stress around the hip
F/p:     MC hip abnormality in adolescence
         M > F, AA affected more
         Just after puberty, associated with fat kids
         Risks: Skeletal immaturity                 malnutrition
                  Overweight                        Prior dx of DDH
                   Chemotherapy use                 Endocrine dx
                  Irradiation                       Renal failure
Pathophys:        Fx is due to stress at growth plate, role in hormones is strong b/c this occurs exclusively
during pubertal growth spurt
Clinical Findings:
         50% present with hip pain, 25% present with knee pain
         Could complain for weeks, watch for ddx (acute muscle strain, Osgood-Schlatter, flat feet)
         Outcome is related to severity of the slip
Eval:
         H & P, baseline radiographs (AP of pelvis + lateral frog-leg)
         Obligate ER of hip, soft tissue changes near iliac crests
TM:      Stabilization of the hip to avoid further damage to the blood supply
F/U:     DJD in middle age,

Legg-Calve-Perthes Disease – avascular necrosis of the proximal femoral head due to compromised
blood supply
F/P:    mean age 7, M>F, unilaterally most of the time
        Risks: Trauma           SCFE            steroid use              sickle-cell crisis
                Toxic synovitis DDH             delayed bone age*        short stature*
Pathophys:
        Interruption of blood supply to secondary ossification centers due to rapid growth  joint
prone to avascular necrosis  replacement with new bone that may appear normal on xray

Clinical Findings:
         MC: painless limp, may present after exertion
         Intermittent pain w/ walking or altered gait in children between 4-10,
         Referred pain to lateral thigh, contralateral knee, gluteal pain
         Pain with passive ROM (IR and abduction)
Eval:
        CBC, ESR for infection
        AP, frog-legs
        Bone scan to eval the blood supply
Tm:
        Protect hip joint! ↓wt bearing, keep femur in Adduct/IR position
        keep head inside acetabulum by bracing or sx
F/U:
        Short term prognosis is related to severity of disease process or age at onset (older – worse)
        Long term - OA

Transient Synovitis – arthralgia from inflammation in the synovium of the hip
F/P:     one of MC causes of joint pain in peds, M>F, between 3-10 y/o
Pathophys:
         Non-specific inflammation of synovial membrane  synovial bulging/pain
         May have hx of trauma or hx of viral infection preceding the joint pain
Clinical Findings:
         Pain with walking, fever, Hx of recent URT infection
         ↓ROM for AB and IR, hip is tender to palpation
         NO skin erythema
Eval:
         Leg Roll Test – most sensitive  + with muscle guarding
         Examine knee
         AP/frog leg films show increased joint space
         ↑WBC, ↑ESR – monitor for bacterial joint infection
         Needle aspiration with ultrasound guidance if: temp > 99.5, ESR > 20, severe hip pain/spasm
                 Check for WBC, Gram stain, culture, ↓glucose in aspirate
Tm:
         Bed rest with no wt bearing, restrict activities
         NSAIDs (ibuprofen, naproxen)
         Any manipulation of the hip is contraindicated until the diagnosis is confirmed!
F/U:     Reeval in 12-24 hours
         Resolves spontaneously in 2 wks, so if symptoms are still present – check for something else!
         Recurrence 4-17%, sm risk for OA

MSK CCC 22: Genetic Musculoskeletal Disorders
Osteogenesis imperfecta – defects in Type 1 collagen  very fragile, brittle bones that break easily
Freq/Pred:        MC is Type 1, IV, V and VI are really rare
                  No known racial/ethnic predilection, no gender preference
Pathophys:        mutations on loci encoding for alpha1/2 chains of type I collagen
Clinical Findings:
         Type I - onset in infancy
                  A – dentinogenesis imperfecta absent
                 B – dentinogenesis imperfect present
                 Both – blue sclera, in utero fractures, kyphoscoliosis, hearing loss, easily bruised, mild,
        short stature
                 Grow up normally functioning despite lots of fractures
        Type II - onset in utero, do not survive 1st year, most are stillborn
                 Dentinogensis imperfecta, blue sclera, NO hearing loss, perinatal lethality
                 Small nose, CT fragility, 100% have in utero fractures, short trunk
                 “beaded ribs” on x-ray
        Type III - 50/50 infancy and utero with fairly normal life span if they survive early life
                 Dentinogenesis imperfect, no hearing loss, variable sclera
                 50% with in utero fractures
                 Limb shortening with progressive deformity
                 Pulmonary HTN
                 Triangular face, frontal bossing
        Type IV - onset in infancy
                 A – w/o dentinogenesis imperfecta, B – w/o dentinogenesis imperfect
                 Both – normal sclera/hearing, angulation of long bones, no bleeding diathesis
        Type V and VI – variable onset

Eval:   Collagen synthesis analysis to differentiate OI from child abuse/genetic counseling
        BMD (not proven to be sensitive)
        Chromosomal gene markers
        Prenatal testing via chorionic villus sampling

        Imaging of skull, chest, long bones, and pelvis as soon as diagnosis is thought of

TM and Management:
       No medical therapy exists but some experimental use of bisphosphonates has been tried
       Pamidronate, Clodronate – both experimental
       Surgical for severe problems
       Intramedullary rodding
       OMT, Genetic counseling
F/u:   Educate. Achieve maximal mobility and prevent fractures!

Endochondroma/Enchondromatosis – B9 bone neoplasms that can cause pathologic fxs and pain
Fre/Pred:        Risk for malignancy with multiple enchondromas – seen in long/flat bones
Pathophys:       Ectopic hyaline cartilage resting in intramedullar bone, replace normal bone with
                 cartilage – look lytic or circular on x-ray
                 Pathologic fxs can occur due to “replacement” phenomenon
                 MC malignant tumor associated: Chondrosarcoma
Clinical Findings:
         Asymptomatic and usually enchondromas cause no problems
        With malignancy – pain, pathologic fxs
        May get calcified over time
Eval:
        Xrays are modality of choice
        MRI and CT reserved for further delineation
        Rare to use biopsy or bone scan
Tx:
       No medical treatment necessary unless they become malignant or cause fractures
       PREVENTION!
Subtypes:
       Ollier – nonhereditary presenting with multiple enchondromas with unilateral distribution
                Good prognosis
       Maffucci – nonhereditary with multiple hemangiomas and multiple enchondromas
       Metachondromatosis – multiple enchondromas and osteochondromas



Mucopolysaccharidosis – result of defective lysosomal enzymes, cells accumulate
proteins/glycosaminoglycans
Freq/Pred:      Sanfilippo is 80% of cases, all AR except Hunter which is X-linked
Pathophys:      By-products of incomplete lysosomal processes build up in tissue and alter cell function
                Diagnosis is made by seeing these by-products in the urine
Eval:
        Prenatal diagnosis
        UA shows excessive excretion of GAGs
        Xrays – basis of diagnosis show skeletal abnormalities
        Head CT to r/o hydrocephalus and an echo to check the heart
Tx and management:
        No cures – enzyme laronidase for MPSI
        Management of symptoms, BM transplant for some
F/U:    Prognosis is based on type, but most have a shortened life span
Subtypes:
        Hurler – deficiency in alphaLiduronidase
                Normal at birth, dx @ 6-24 months
                Corneal clouding, skeletal dysplasia, coarse facial features, lg tongue, short stature
                Developmental delay, hearing loss, hydrocephalus
                Death by age 1
        Hunter – deficiency in iduronate sulfatase
                Pebbly skin lesions on the back, arms, thighs
                Mild: slower progression with normal intelligence and hearing loss
                Severe: at age 2-4 y/o, progressive neurological involvement
                         Retinal degeneration, MR, joint stiffness/deformities
                         Death by 10-15 years
        Sanfilippo – deficiency in heparin N-sulftase or glucosaminidase
                 MC MPS disorder, with 4 subtypes
                 Severe CNS involvement with severe behavioral disorders
                 Mental deterioration, lg head, H/S megaly, coarse hair, joint stiffness
                 Death by 2nd/3rd decade
        Morquio – deficiency in acetyl galactosamine sulfatase or beta galactosidase
                 Orthopedic problems: spondyloepiphyseal dysplasia
                 Genu valgum, short status, scoliosis, odontoid hypoplasia, AA instability
                 Mild: normal life span
                 Severe: death by age 30

MSK CCC 24: Juvenile Rheumatoid Arthritis
Freq/Pred
         10-20 cases/100,000 kids
         Native Americans have higher incidence
         AAs are older when diagnosed, more likely to have +RF
         Pauci/polyart more common in girls
         Pauci – early childhood, system – any age
Pathophys:
         True etiology is unknown
         Synovium has an infiltration of B-cells, plasma cells, monocytes = extra synovial fluid = increased
pressure = distention of the joint capsule = more inflammation
         Cytokines/proteases destroy the joint cartilage  breakdown of bone/joint infrastructure
Clinical subtypes:
         Systemic onset (Still’s Disease)– high spiking fevers several times daily for 2-3 wk period,
may/maynot affect joints
                 S/S:     Very high spiking fever at about the same time everyday
                          Not responsive to antipyretics
                          Pink rash on trunk/extremities
                          Joint swelling does not occur, but arthralgia is common
                          +/- Lymphadenopathy, +/- hepatosplenomegaly
                          Definitive diagnosis cannot be made until arthritis appears
         Pauciarticular – 4 or less joints involved, usually the larger joints
                 S/S:     MC involves larger, wt-bearing joints
                          Flexion contractures of the joints
                          Morning limping w/ knee involvement
                          +/- Iridocyclitis/iritis
                          *Include LCP disease, transient synovitis, SCFE and osteomyelitis in differential
                          *chronic involvement  atrophy of thigh/hamstring muscles/ligaments
         Polyarticular – 5+ joints affected
                 Subtypes: RH factor + and RH factor –
                          + group – arthritis is similar to adult RA with +/- extensor nodule presence
               S/S:    Lg joints w/ symmetric involvement of small joints in hands/feet
                       Pain + ↓ROM of cervical spine
                       Low grade fevers
Eval
       Labs      ESR                       CBC                     LFTs
                 UA                        ANA                     RF
                 HLA-B27 antigen
         For systemic JRA:        total protein/albumin            fibrinogen
         Imaging:
                 X-rays of affected joints, bone scan, MRI, CT, echocardiogram
         Other procedures:
                 Aspiration, synovial biopsy, pericardiocentesis
                 Slit lamp exam of eye in all children with JRA symptoms of any type
                 DEXA scan to rule out osteopenia
Treatment
         Nothing standard, exact is determined by diagnosis and symptoms
         Require team approach b/c this involves lots of systems/lifelong problem
         Goals: Reduce joint pain, preserve joint function, maintain growth, minimize meds and side
effects and minimize osteoporosis. Screen for iridocyclitis to reduce vision problems and maintain
function and self-esteem
         Meds: NSAIDs, etanercept (TNF inhibitor)

F/U:   No prevention, OMT, may need sx with aggressive arthritis, joint replacement

MSK CCC 25: Non-traumatic Foot, Ankle pain – Bolin assignments
Medial Foot Pain DDX
       Bone
       Ligaments/fascia
       Nerve
       Tendon
       Somatic dysfunction

Pes cavus – high arch                  Pes planus – low arch
Arch Assessment:
        Inspection  Functional (forward squat test)

Functional Arches of the Foot
       Lateral
       Medial
       Metatarsal
       Transverse
Posterior tibial tendinitis
       38-58 year old woman who starts new exercise program and complains of progressive, achy pain
       in medial arch

        Exam: Pain with posterior tibialis MMT
                Unilateral pronation, PF and inversion
        Work up:        Xray
        Tx:     cast/boot with orthotics
                Surgical consult                Risk of DJD with rupture
DDx for posterior heel pain:
                Haglund’s deformity (retrocalcaneal bursitis)
                Os trigonum/impingement
                Insertional tendinitis
                Retrocalcaneal fat pad
                Sever’s Disease
                True Achilles tendinitis
                Somatic Dysfunction

Achilles Tendinitis
        Pain in posterior heel that is insidious in onset (stiffness with runnin and in AM)
        Swelling, nodule or both that migrates proximally with PF
        Affects 18% of runners
        Risks: age, cavus feet, tibia vara, varus deformities, overuse/jumping
        Tx:      stretching of gastroc/soleus
                 Eccentric exercise

Achilles Tendon Rupture
        Complication of Achilles tendinitis
        Hx of activity with a sudden pop “like someone shot me in the back of the leg”
        Hx of fluoroquinolone use
        Dx:      Thompson test, palpation, MRI
        Tx:      surgery

DDX for Heel Pain:
       Fat pad syndrome
       Plantar fasciitis – morning symptoms related to fascial tension
               Pain at medial insertion
               Windlass manuever
       Foreign body
       Medial plantar nerve entrapment
       Bone bruise/stress fx/fracture
Ddx for pain in metatarsals/phalanges
        Stress/true fx
        Tendinitis
        Infxn           Tumor         Synovitis

        Metatarsal:
               Metatarsalgia                Interdigital neuroma
               Turf toe                     Sesamoid pathology
               Friedberg’s infarction

Morton’s Neuroma
       Fibrosis of perineural area of common digital nerve leading to entrapment between 3rd and 4th
metatarsal causing sharp, stabbing, lacinating pain
       Worse when wearing shoes (small toe box size)
       Dx:      clinically, palpation of distal intermetatarsal spaces
                Mulder’s sign
                Laseague’s sign
       Workup:            Xrays to look for osteophytes/masses
       Tx:      Conservative  injections  surgery

March Fracture
       90% of all metatarsal stress fxs occurring at neck of 2,3,rth MT
       Very common in runners, or 1st MT in dancers
       Dx:     XRAY
       Tx:     stiff shoe for 4-6 weeks

5th Metatarsal Stress Fxs
        Distal  proximal = stress  Jones  Avulsion
        Dx:     Clinical suspicion, xrays are usually negative, bone scan shows bone turnover
        Tx:     modified rest  gradual reintroduction of sport

Sesamoids       Injured during running, jumping, typically medially
      Dx:       Pain on plantar 1st MTP joint, pain with maximal DF with 1st ray
                Inability to push off

Bunion – Hallux Valgus
       Valgus deformity at 1st MTP joint associated with shoes with tight shoe box
       Tx:     orthotics, wide toe box, sx when conservative measures fail

Hallux Rigidus
        Limits 1st MTP joint dorsiflexion
MSK CCC 26: Traumatic foot, ankle
X-rays involved in a work up:
         Foot: AP/Lat/Oblique
         Ankle: AP/Lat/Mortise view/Broden views

Fracture Types:
        Transverse – across bone
        Oblique & spiral
        Comminuted - fragmented
        Compound – bone through skin

Fracture Healing:
        Hematoma  soft callus + new vessels  osteoblasts lay down new bone (bony callus)

Talar Fractures – relatively rare
        Talus compressed within mortise (dorsal to plantar shear)
        Neck fx is most common, complication is Avascular necrosis

Shepherd’s Fracture – due to forceful plantar flexion (confused with os trigonum)
       Frequently missed (on xray)  complications are pain/tendinitis
       Tx:     crutches for 6 weeks

Talar dome fracture – injury to articular cartilage/subchondral bone
        Osteochondritis dissecans (loose body separates and floats in the joint)
        Prolonged ankle pain after a sprain
        Tx: surgery, untreated leads to DJD

Heel fracture – calcaneal most common
        MOI: fall from height
        Dx:     xrays, ct scan
        Tx:     compression, elevation, foot pumps, early ROM, sx if displaced

Lisfranc Fx/Dislocation
        MOI: “foot folded beneath me”
        S/S:    pain, edema, ecchymosis, inability to bear weight or push off
        Dx:     subtle dorsal disloation of first MTT joint, wt-bearing xray
        Tx:     short leg cast or boot 4-6 weeks
                >2 mm separation requires surgery

Toe Fractures
       MOI: secondary to “stub” or direct impact
       Tx:    conservative with “buddy taping”
Tendon injuries
       Flexor tendons
       Extensor tendons
       Complication of missed diagnosis: retraction

MSK CCC 27: Non-traumatic knee pain
90% of these problems can be diagnosed with good hx, physical and plain x-rays. MRI is seldom needed.
Hx alone can give diagnosis up to 70% of pain.
PE:
        Peri-patellar palpation, patellar gliding/ballotment, patellar grind
        Joint line palpation
        Varus/valgus stress tests
        McMurray’s test
        Lachman’s
        Anterior/posterior drawer
        Pivot shift test
        Osteopathic eval – “kinetic chain”
                 Pronation/supination
                 Understand “real world” muscle fxn – econcentric function
                 Influence of compensation and accommodation
Imaging: Only needed if H & P do not provide enough info
        Plain films
                 Functional standing xray – shows true alignment and joint space narrowing
                 Do at least 4 views: standing AP, lateral, 30° sunrise for patellar tracking, tunnel view)
                 Asses for arthritis, fracture, growth plate injury, loose body, joint effusion, alignment

Risk factors for Overuse Injury:
         Biomechanical
         Age:
                 Peds - rapid growth, usually injury to the apophysis (where tendon attaches to bone)
                 Middle aged – inadequate conditioning and flexibility
                 Senior – look for meds or underlying disease process
Extrinsic Factors:
         Mechanical, coaching, environment, drug use, training

Classification:
         Grade I – post activity pain only
         Grade II – pain with activity, does not restrict
         Grade III – pain with activity + restriction in performance
         Grade IV – pain with activity & rest
Tendonitis (chronic or acute)
       Causative factors: changes in mechanical loading or changes in muscle tendon extensibility
       Intrinsic factors: structural failure due to overload, wkness, or a combo
       Extrinsic Factors: impingement by bone or other structures
                “choking the tendon”

Pediatric and Growth Issues
        Apophyseal injury – traction induced microtrauma at tendon-bone junction
        Physeal injuries – repetitive loading causing metaphyseal ischemica and poor growth in the
        proliferative zone  widening or narrowing of growth plate

Osgood Schlatter’s Disease – common cause of knee pain in active adolescents (M>F 10-14 years)
      Diagnosis – localized pain at tibial tuberosity, no need for radiographs but they can confirm your
      suspicion and exlude other causes of knee pain
      Patho – microtrauma at deep fibers of patellar tendon at its insertion on the tibial tuberosity
               “apophysitis”
               Usually self-limited with resolution at skeletal maturity
      Tx – relative rest and enhance strength/flexibility

Popliteal (Baker’s Cyst) – distended bursa in the popliteal space
        MC bursa involved is beneath the medial head of the gastroc or semi-membranous tendon
        Present with complaint of aching pain in the posterior knee/proximal calf
        Diagnosis: AP, lateral, tangential X-rays of the knee
                Adults – usually associated with intra-articular pathology
        Tx:     children – may resolve with time, occasionally have to excise
                Adults – treat intra-articular pathology first, if discomfrt still remains  excise (rare)
                         Lg, tense cysts can be aspirated with common recurrence

Sinding – Larsen – Johansson Syndrome – inflammation of patella at its inferior pole at the origin of the
patellar tendon, “traction injury”
         S/S:   swollen, warm, tender bump below the kneecap
                Pain w/ activity especially when straightening the leg against force or post vigorous
                activity, if more severe – pain with any activity
         Tx:    Ice, stretching, strengthening, exercises, modification of activities
                Patellar band (brace b/w kneecap/tibial tubercle on top of patellar tendon)

Patellofemoral Pain Syndrome
        Multifactorial: overuse/overload, biomechanical problems, muscular dysfunction
                Pes planus (pronation)
                Pes cavus (high-arched foot, supination)
                Q Angle – alignment (increased = knocked knees)
                Muscular causes
        Patellar Tracking – tilt, subluxation with inverted J sign, apprehension test, functional evaluation
        Tx:      relative rest with temporary change to non-impact activity
                 Quad strengthening, flexibility (address kinetic chain)
                 Orthotics, icing, knee sleeve

Osteochondritis Dissecans – unknown etiology
       S/S:    generalized pain with swelling/aching post activity
               Intermittent pain/mild swelling that just doesn’t get better (knee sprain forever)
       MC found on medialfemoral condyle weightbearing surface
       Diagnosis:      Tunnel view x-ray with radiolucent defect on femoral condyle, confirm on MRI
       Tx:     Rest, period of non-weight bearing or sx if necessary

MSK CCC 28: Traumatic Knee Pain
Bone Trauma
Patella Fracture
        Tx: ORIF > 2mm articular displacement

Tibial Plateau fracture (wt bearing surface of proximal tibia)
         Tx: >3-5mm, surgery required
         Knee joint unstable, fx is open, compartment syndrome  surgery
         Also fix meniscus injury that may have occurred
         Lateral fx can be arthroscopically reduced and treated with leg screws
         Medial fx require a buttress plate and screws

Distal Femoral Condyle Fxs and Supracondylar Femur Fractures

Avulsion of Tibial Spine or “bicycle” fracture in children

Soft Tissue Trauma – rare to occur in children
Knee Ligament Tears
         Internal: ACL/PCL will not heal on their own (ACL more commonly repaired – must do a graft)
         Recovery takes 6 months
         External: MCL/LCL – heal on their own
Meniscus Tears – require major trauma at young ages, but minimal twisting/squatting if >35 years
         S/s:    Pain along joint line, stiffness, mild swelling or knee with or without locking/catching
                 Audible popping with flexion/extension
         Repair is one of the top 3 orthopedic surgical procedures done in US
         Repaired with sewing/stapling if the tear is in the right location
         Transplant cadaver menisci but unproven efficacy
Articular Cartilage Damage
         Poor healing potential, nearly always leads to arthritis
         Repair techniques:
                 Trimming/contouring of torn surface
                 Abrasion/micro fracture in an attempt to grow fibrocartilage repair cartilage
                 Filling a contained defect with cartilage and bone grafts from elsewhere
                 Growing autologous cartilage cells in tissue culture and implanting them
Combos of the above + Knee Dislocation
Patellar Tendon Rupture
         Suturing tendon back to patella with large and strong sutures – very successful if done acutely



MSK CCC 30: Bone, joint infections – Palmieri
Review cases

MSK CCC 31: Traumatic injuries to wrist/forearm
Dislocation – bony components of joint are no longer in contact with one another/complete disruption
Incomplete fx – Greestick or Torus
Subluxation – bony compartments are partially in contact with one another/partial disruption

Description:
        Direction of fx line
                 Transverse
                 Diagonal/oblique
                 Spiral
        Relationship of fragments
                 Displacement/Translation – sideways motion of a fx
                 Angulation – amt of bend at a fx line
                 Shortening – amt a fx has collapsed/bayonet opposition
                 Rotation
        # of fragments
                 2 – simple
                 2+ - comminuted
        Communication with atmosphere (best evaluated clinically)
                 Closed
                 Open
                          Gustilo classification used for prognosis

Treatment:
       Immediate
       Debridement of skin, muscle, bone, tendon

Colle’s Fracture
         Of the distal radius with dorsal angulation
Jones’ Fracture
        Fx of base of 5th metacarpal
Boxer’s Fracture
        Fx head of 5th metacarpal with volar angulation
        MOI: punching a person/wall

Fractures in Children
        Salter-Harris classification (kids fx that involve the growth plate)
        I: across the physis with no metaphysical/epiphysial injury
        II: across the physis with extends into the metaphysis
        III: across the physis which extends into the epiphysis
        IV: fx through metaphysic, physis and epiphysis
        V: crush injury to the physis

Supracondylar Humerus Fxs

Distal Radius Fxs
        Common with high potential for functional impairment and frequent complications
        Most often result from a FOOSH
        Dx:     Xrays – look for dorsal/volar rim, look for die-punch lesions of scaphoid/lunate
        Tx:     Closed reduction

						
Related docs
Other docs by xiuliliaofz
bg40en
Views: 170  |  Downloads: 0
Generational_Imperative_Underwood_presentation
Views: 253  |  Downloads: 0
activex (Excel download)
Views: 6  |  Downloads: 0
Tulips bulbs for sale - Wordpress Wordpress
Views: 12  |  Downloads: 0
August_2010_Executive_Board_Meeting_Minutes
Views: 1  |  Downloads: 0
hostess_email
Views: 10  |  Downloads: 0
Outsiders essay Simran.docx - missgatbc
Views: 3  |  Downloads: 0
FY11_Q2_Form10Q
Views: 2  |  Downloads: 0