Comparision of radiological classification in osteoarthritis knee- A Retrospective Study

Abstract

Osteoarthritis (OA) is a leading cause of musculoskeletal pain worldwide and the knee is one of the most commonly affected joints.The pathogenesis of OA is poorly understood but is thought to include a complex interplay among mechanical, biochemical, cellular, genetic, and immunologic phenomena. To compare and correlate the radiological classification findings by using the standard anteroposterior view of both knee on standing position in the diagnosis of osteoarthritis of knee joint and its severity. Methods and Material: Retrospective study, hospital-based study conducted in 44 patients who were radiologically evaluated for complaints of Knee pain and diagnosed with Osteoarthritis. Result: Out of 44 patients, 25% and 41% of the subjects belonged to the class 1 and class 2 of Kellgren-Lawrence classification about respectively, Ahlback’s grading about 45% and 43% of the subjects belong to the Class 1 and class 2 , IKDC classification (36%), (36%) subjects belong to the Class 1 and class 2 respectively. There was good agreement between Kellgren-Lawrence and Ahlback’s classification with percent agreement of 65.9% and Kappa value of 0.487 (p-value<0.001).Conclusion:Agreement between Kellgren-Lawrence method,IKDC,and Ahlback’s classification were high among subjects aged more than 40 years with osteoarthritis.