前臂骨间背侧神经断伤漏诊原因分析

Posterior interosseous nerve injury:cause of misdiagnosis

分析１０例前臂骨间背侧神经切割伤漏诊的原因，关键是对前臂骨间背侧神经的认识和重视不足。根据解剖特点将前臂背侧划分为Ａ、Ｂ、Ｃ三个区域，各区段骨间背侧神经损伤时的临床表现不同。食指固有伸肌和拇长伸肌的功能存在与否对判断前臂背侧中上段的切割伤是否累及骨间背侧神经有重要意义。肌电图有助于陈旧性损伤的诊断，强调在前臂中上段背侧锐性伤伴有手部功能障碍时，应在良好的麻醉下手术，井常规探查骨问背神经。

Abstract In analysing misdiagnosis in 10 patients with posterior in terosseous nerve injury,we noted the main reasons were unfa miliarity with the anatomy and inadequate consideration.We divide the dorsal forearm into 3 zones based on the anatomical characters and discribe the different Clinical presentation at each zone.Whether the function of the extensor indicis and tile extersor pollicis longus are affected can indicate the level of posterior interosseous nerve injuryEMC is helpful.Routine exploration of the posterior interosseus nerve should beperformed with good anaesthesia in dorsal forearm trauma.