Primary Synovial Osteochondromatosis Discovered After Ankle Sprain.

A 23-year-old military cadet presented to a direct-access physical therapy clinic for an ankle sprain 1 day after inverting his left ankle. Following examination, the physical therapist ordered lower-leg radiographs, which showed no fracture; however, small, rounded, partially calcified bodies were noted in the ankle. Additional ankle imaging was ordered under radiologist guidance. Preoperative computed tomography of the cadet's left ankle, ordered by orthopaedics, demonstrated chondral and osteochondral bodies. J Orthop Sports Phys Ther 2019;49(4):284. doi:10.2519/jospt.2019.8383.