PERIARTICULAR CHONDROBLASTOMA - A RARE CAUSE OF KNEE PAIN, DIAGNOSIS AND ITS MANAGEMENT

Abstract : 14 years old boy presented with chronic knee for 2 years duration not relieved by rest or analgesics. No history of trauma or fever. Clinical examination was normal except for range of motion 0 - 110 degrees. Blood investigations and x rays were normal. CT showed a subarticular lesion in the posteromedial aspect of the lateral tibial plateau with open growth plate suggestive of chondroblastoma. Treatment option of curettage and bone grafting was done by identifying the lesion in a novel manner without disturbing the growth plate and articular cartilage. Postoperatively patient was pain free and achieved full range of movements.