Grossman J A, Yen L, Rapaport D
Hand Surgery Unit, Miami Children's Hospital, Florida, USA.
Chir Main. 1998;17(2):154-8. doi: 10.1016/s0753-9053(98)80010-0.
We studied the anatomy and pathology of the dorsal cutaneous branch of the ulnar nerve by dissecting 10 fresh cadaver upper limbs and reviewing 6 cases of injury or entrapment of the dorsal cutaneous branch of the ulnar nerve. In all of the cadavers and in our series of cases, several anatomical features were apparent: 1) the dorsal cutaneous branch of the ulnar nerve arises from the main ulnar nerve an average of 5.5 centimeters proximal to the head of the ulna; 2) the dorsal cutaneous branch of the ulnar nerve reaches the dorsum of the hand after coursing volar to the ulnar head; 3) there was no communication between the dorsal cutaneous branch of the ulnar nerve and the superficial sensory branch of the radial nerve; and 4) no volar branches were noted. Based on our experience, disorders of this nerve are more prevalent than previously reported. This clarification of the anatomy will help prevent unnecessary injury during surgery and will be valuable in the diagnosis of disorders of the dorsal cutaneous branch of the ulnar nerve.
我们通过解剖10具新鲜尸体的上肢并回顾6例尺神经背侧皮支损伤或卡压病例，对尺神经背侧皮支的解剖结构和病理情况进行了研究。在所有尸体及我们的病例系列中，有几个解剖学特征较为明显：1）尺神经背侧皮支在距尺骨小头近端平均5.5厘米处由尺神经主干发出；2）尺神经背侧皮支在向尺骨头掌侧走行后到达手背；3）尺神经背侧皮支与桡神经浅感觉支之间无交通；4）未发现掌侧分支。根据我们的经验，该神经疾病比之前报道的更为常见。对其解剖结构的明确将有助于预防手术中不必要的损伤，并对尺神经背侧皮支疾病的诊断具有重要价值。
