Department of Anesthesiology, Tongde Hospital of Zhejiang Province, 234 Gucui Road, Xihu District, Hangzhou City, Zhejiang Province, P. R. China.
Department of Orthopedics, The First Affiliated Hospital, Zhejiang University, 79 Qingchun Road, Hangzhou, Zhejiang Province 310003, P. R. China.
J Int Med Res. 2020 Jul;48(7):300060520938599. doi: 10.1177/0300060520938599.
A true accessory extensor tendon of the thumb seems to be rare. We found a variation of the accessory extensor pollicis longus (EPL) tendon while performing an emergency surgical procedure. Identification of this accessory tendon during emergency surgery has not been previously reported. A 43-year-old man presented to our hospital after sustaining a work-related injury involving a saw. During the operation, the tendons of the EPL, accessory EPL, and extensor pollicis brevis were severed. The lacerated tendon and tendon sheath were repaired, and the wrist and thumb were positioned in extension. The patient's postoperative activity returned to normal without the need for a second tendon release operation.
Surgeons should be aware of this anatomic anomaly of the EPL tendon. Presentation of our case increases clinicians' chances of preoperatively detecting this anomaly, which can improve surgical outcomes.
真正的拇指副伸肌腱似乎很少见。我们在进行急诊手术时发现了一条副长伸肌腱（EPL）肌腱的变异。在急诊手术中识别这条副肌腱以前没有报道过。一名 43 岁的男子在工作时被电锯割伤后来到我们医院。手术中，EPL 肌腱、副 EPL 肌腱和拇短伸肌腱被切断。撕裂的肌腱和腱鞘被修复，手腕和拇指被置于伸展位。患者术后活动恢复正常，无需进行第二次肌腱松解手术。
外科医生应该意识到 EPL 肌腱的这种解剖异常。我们的病例增加了临床医生术前检测到这种异常的机会，从而可以改善手术结果。
