Le Lamvy T, Butcher Brandon, Loewenstein Scott N
Division of Plastic Surgery, Department of Surgery, University of Minnesota, Minneapolis, MN.
Department of Graduate Medical Education, University of Minnesota Medical School, Minneapolis, MN.
J Hand Surg Glob Online. 2023 Dec 3;6(1):126-129. doi: 10.1016/j.jhsg.2023.10.010. eCollection 2024 Jan.
Anatomical variations of the extensor pollicis longus (EPL) tendon are rare. Variations are typically asymptomatic, yet knowledge of these variations poses significance in the setting of dorsal approaches to wrist surgery. We present a case of an accessory EPL tendon that was discovered intraoperatively in the fourth dorsal compartment during open repair of a distal radius fracture with a dorsal spanning plate. If not correctly identified, the accessory EPL could have been entrapped beneath the plate, resulting in limited thumb extension and potentially tendon rupture.
拇长伸肌（EPL）肌腱的解剖变异较为罕见。这些变异通常无症状，但了解这些变异对于腕部手术的背侧入路具有重要意义。我们报告一例在使用背侧跨越钢板开放修复桡骨远端骨折时，术中在第四背侧间室发现副EPL肌腱的病例。如果未正确识别，副EPL肌腱可能会被钢板卡压，导致拇指伸展受限并可能造成肌腱断裂。
