Synovial chondromatosis of the shoulder associated with osteoarthritis: conservative treatment in two cases and review of the literature.

Periarticular synovial chondromatosis associated with osteoarthrosis is a rare condition that is more frequently seen in the lower extremity than in the upper extremity. In patients who have synovial chondromatosis of the joints of the lower extremity and are symptomatic, the traditional method of treatment has included open or arthroscopic synovectomy and removal of loose bodies. In cases involving the upper extremity, especially in the shoulder, patients have variable disability and may be treated successfully without surgery. Two patients who presented to our practice with shoulder symptoms due to synovial chondromatosis were treated successfully without surgery. In both patients nonoperative treatment consisting of activity modification, nonsteroidal anti-inflammatory medication, and cryotherapy as needed led to a good result without surgical intervention.