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Treating knee osteoarthritis - from the American College of Rheumatology
Exercise whether it be aquatic, aerobic (land -based) or resistance can decrease pain and improve functional capacity. Exercise should be performed 3 to 5 times a week. Effects are usually noted after 3 to 6 months.
Weight loss of 5% or greater body weight is associated with a small improvement in pain and physical function. The main benefit of weight loss has more to do to effects on co-morbid conditions.
Walking aids: A single crutch or cane should be held on the side contralateral to the affected knee and should be advanced with the affected limb when walking to reduce the load on the affected joint.
Cane sizing: The distance from the floor to the patient's greater trochanter (brings the elbow to 15º to 20º of flexion.
References
Chronic OA Management, Marc C. Hochberg. Volume 3 December 2013