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Angular Limb Deformity
Preoperative views of a 7 mo
old yellow lab with an angular
deformity of the left front limb.
The foot and carpus are rotated
outwardly by 90º in relation to the elbow. The limb is shorter (limb
length disparity is present). Associated dorsal bowing of the radius is visible and extreme stress on the carpal joint
is present. This type of angular deformity occurs following premature closure of the distal ulnar growth plate with
continued growth of the distal radius. As the radius continues to grow, under the constraint of the slowed or ar-
rested ulnar growth, the bone bows dorsally and the carpus and foot are deviated laterally.
Preoperative radiographs (on the left) showing a 90 degree
rotational deformity of the left antebrachium. The carpus is
twisted (rotational deformity) by 90 degrees compared to the
elbow and the radius is bowed dorsally. There is also subluxa-
tion present in the elbow.
Immediate postoperative radiographs (above) with CESF
(circular fixator) in place.
Wheat Ridge Veterinary Specialists 2
Postoperative views showing
the fixator in place (left) and
immediately following fixator removal. Limb alignment and
length are significantly improved. Function and comfort in the limb are excellent.
30 days PO 90 days PO
Postoperative radiographs at time of CESF removal (90
Postoperative radiographs at 30 days with the CESF in days PO). The limb is straight, the carpus and elbow are in
place. Limb alignment is much improved. Healing of the alignment. The dorsal radial bowing has been corrected. Par-
osetotomy and distraction sites is progressing. tial reduction of the elbow subluxation has been achieved.
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