抄録
Background: Wrist arthroscopy has been used successfully with many modifications and improvements, although distal radioulnar joint (DRUJ) arthroscopy is still uncommon. Here we studied the usefulness of DRUJ arthroscopy.
Patients and Methods: A total of 34 patients with ulnar-sided wrist pain who underwent both radiocarpal joint and DRUJ arthroscopy were studied retrospectively. The preoperative diagnoses included 24 cases of TFCC injury, 5 cases of ulnar head subluxation, 4 cases of ulnocarpal abutment syndrome, and 1 case of synovitis. Arthroscopic findings, the rate of visible foveal attachment, and the relationship between arthroscopic findings and pain were investigated.
Results: Arthroscopic findings of the DRUJ were normal in 10 cases, synovitis in 16, foveal tear in 9, disk tear in 5, and free body in 1. The total number of foveal tears was 13, although 4 could not be confirmed by arthroscopy. The fovea was visualized in 26 cases (76%). In 17 of 24 cases (71%), abnormality of the DRUJ was considered to have been the cause of ulnar-sided wrist pain.
Discussion: Although DRUJ arthroscopy is technically difficult, it is mandatory for the diagnosis and treatment of ulnar-sided wrist pain.
