Painful joints (osteoarthritis) can be very distracting activities and degrade performance because if it is exposed to be difficult to cure. Now researchers can detect whether a person has the risk of painful knee joints with sound test. Osteoarthritis occurs when cartilage in the joints 'sagging' and can affect any joint in the body. This joint disorders most commonly affect the hands, hips, knees, back and neck. When osteoarthritis occurs in the knee, the cartilage that covers the ends of the bones of the knee joint is damaged. It can get worse, if the cartilage does not exist then directly with bone rubbing against bone, which eventually led to tremendous pain for the patient. Currently, there is no cure for osteoarthritis conditions, but there are few to prevent it such as weight loss or exercise to prevent stiffness. In extreme cases, surgery can be considered as a solution. Researchers recently unveiled a prototype device that can detect knee joint pain in osteoarthritis aka early. Researchers at the Universities of Lancaster and Central Lancashire develop acoustic devices to scan the sound in the knee which may indicate deterioration of the knee joint at an early stage. "Basically we have found a way to measure the sound from joints by simple repetitive movements, ie sitting and standing," said Professor John Goodacre of the University of Lancaster, as reported by BBC News, Sunday (18/07/2010). Researchers found with this prototype device, the sound knee has its own characteristics. Characteristics of normal with a damaged knee will be detected from his voice, unfortunately not explained clearly differences in the sound. The creation of this tool industry inspired acoustic instruments are used to detect wear and tear. For example, to detect wear and tear on the arm bearing the burden of pier. "If we can really make a difference or if it believes that change can occur even before symptoms develop, then this will pave the way for a variety of approaches," added Prof Goodacre. When osteoarthritis has been detected early, it can at least be a change in lifestyle management, use of preventer medication or other treatment. Prof Goodacre hope this device can later be developed into a cheap and practical tool, to be used by doctors and clinics to diagnose and monitor osteoarthritis.