Preponderance of side of involvement in Osteoarthritis knee

Introduction: Osteoarthritis (OA) is a chronic inflammatory condition affecting the joint. Knee is the most commonly involved joint of body in osteoarthritis. Osteoarthritis may occur primarily in knee joint or it may be due to some underlying condition of knee joint in which case it’s called secondary osteoarthritis. We have conducted this study to know the mechanism causing osteoarthritis knee relying on preponderance of side of involvement. Materials and Methods: This is a cross sectional study of 400 patients presented to OPD of Department of Orthopaedics, Civil Hospital Ahmedabad during 1st of May, 2016 to 31st of May, 2016. Only patients with primary osteoarthritis of knee were enrolled in our study. Results: Out of 400 patients enrolled, 180 (45%) patients had involvement of left knee joint, 170(42%) patients had involvement of right knee joint whereas 50 (13%) patients had bilateral knee joint involvement. There is no preponderance noted for specific side of OA knee in our study. Furthermore there was no correlation found between occupation and development of OA knee in your study. Conclusion: There is no preponderance for specific side for OA knee as per our study further strengthening the claim that OA knee is not due to the wear and tear mechanism as if it would have been so bilateral involvement would be more common and in unilateral involvement, dominant extremity would have been commonly involved which is not consistent with the findings of our study. Keywords: Knee, Osteoarthritis, Side