Symptoms include pain (especially during climbing down stairs), stiffness, deformity (bowed legged or knock knees) and loss of function (unable to bend fully, unable to straighten fully and unable to squat down). And once the knees became deformed, the abnormal posture of the knee will lead to accelerated damage of the joint cartilage, leading to further deformity and hence entering a vicious cycle of further destruction and deformity, resulting in intractable pain and severe loss of function of the knee joint. Please make a visit to an orthopedic in Singapore if you are suffering from these symptoms and take Osteoarthritis Screening Package Today!