Primary Synovial Osteochondromatosis of the Hip Joint Treated with Arthroscopic-assisted Mini-open Surgery-Two Case Reports

Long-standing case of osteochondromatosis of the hip treated with uncemented modular bipolar hemiarthroplasty: A case report

Introduction:

Synovial chondromatosis is a rare synovial disorder characterized by the presence of benign loose bodies in the joint space. The affliction of the hip joint is rare. This entity usually goes undiagnosed as it is largely asymptomatic till complications such as secondary osteoarthritis secondary to degenerative changes, subluxation of hip, and fracture neck of femur ensue.

Case Report:

A 46-year-old farmer presented with a 9-year long history of the left hip pain with restriction in flexion, extension, and internal rotation. He was diagnosed with synovial chondromatosis and had a history of undergoing arthroscopic debridement following which he was asymptomatic but relapsed after 6 months. We performed excision with uncemented modular bipolar hemiarthroplasty after confirming the diagnosis on plain radiographs and computed tomography. Significant recovery in the range of motion was noted postoperatively and the patient showed no signs of relapse in the follow-up period of 18 months.

Conclusion:

Treatment of synovial chondromatosis of the hip joint poses a challenge due to its complex anatomy.