Abstract
Osteochondromas are usually extra-articular lesions originating from the metaphysis of long bones. Intra-articular osteochondromas may also occur, causing pain and discomfort and restricting the range of motion. Osteochondromas of the femoral neck are intra-articular lesions that are difficult to access for surgical resection, particularly when located posteriorly. We herein present a rare case of an intra-articular osteochondroma involving the posteroinferior aspect of the femoral neck associated with secondary synovial osteochondromatosis (SOC) of the hip joint in a 25-year-old woman. Determining the optimal treatment was difficult due to the high risk of avascular necrosis (AVN) following surgical excision. The patient was successfully treated with arthroscopic surgery and she remained in good condition at 2 years postoperatively, with a full range of motion of the hip joint, and without signs of limping, recurrence of the SOC, or AVN of the femoral head.
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