Abstract
Osteochondrosis of the humeral trochlea with osteochondritis dissecans of the humeral capitellum is comparatively rare. We report a 15-year-old male table tennis player who developed repetitive right elbow pain. Computed tomography showed two lesions of the subchondral bone in the right humeral capitellum and trochlea. Arthroscopic surgery was performed, and the postoperative course was satisfactory. We considered the trochlear lesion to be osteochondrosis, whereas that of the capitellum was osteochondritis dissecans, based on the chronological course revealed by computed tomography. The reasons for the delay in diagnosis were inadequate physical examinations and unclear radiological findings. Our findings indicate that osteochondrosis of the humeral capitellum or trochlea should be considered in the differential diagnosis of this type of case.
