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Published on: May 26, 2023
Posttraumatic triggering of the extensor pollicis brevis tendon in de Quervain's disease successfully diagnosed with
Takuya Uemura1,2, Koichi Yano3, Yusuke Miyashima1
1Department of Orthopaedic Surgery, Osaka General Hospital of West Japan Railway Company, Osaka, Japan.
Abstract:
Triggering due to de Quervain's disease is exceedingly rare. This is the first successfully diagnosed case of the snapping phenomenon of the extensor pollicis brevis (EPB) tendon in de Quervain's disease evaluated with preoperative dynamic ultrasonography, clearly demonstrated in an intraoperative video, and treated with decompression of EPB subcompartment only under a wide-awake surgery. Dynamic ultrasonographic images identified snapping caused by unsmooth excursion of an enlarged EPB tendon in a separate subcompartment. In snapping de Quervain's disease, ultrasonographic evaluations and wide-awake surgery are essential to exactly diagnose and successfully treat the snapping condition of the EPB and/or APL tendons.

