Engber W D, Gmeiner J G
J Hand Surg Am. 1980 Jan;5(1):26-9. doi: 10.1016/s0363-5023(80)80038-4.
With recent attention being placed on the median palmar cutaneous nerve, a surgical approach, ulnar to the axis of the ring finger ray, has been advocated for median nerve decompression at the wrist. Painful hypothenar neuromas have developed in two patients with this type of incision. After dissecting 21 cadaver forearms and hands, three classic and two variants of the ulnar palmar cutaneous nerve were identified and found to emerge in the subcutaneous tissue ulnar to the ring finger ray. The terminal branches supplied the hypothenar skin and extended radially to the ring finger ray axis. Because of these anatomic findings, we recommend an incision in line with the ring finger ray axis in an attempt to avoid injury to both ulnar and median palmar cutaneous nerves.
随着近期对正中掌皮神经的关注，一种手术入路，即沿环指轴线尺侧，已被提倡用于腕部正中神经减压。采用这种切口类型的两名患者出现了疼痛性小鱼际神经瘤。在解剖21例尸体前臂和手部后，识别出尺掌皮神经的三种经典类型和两种变异类型，并发现它们在环指轴线尺侧的皮下组织中发出。终末支供应小鱼际皮肤，并径向延伸至环指轴线。基于这些解剖学发现，我们建议沿环指轴线做切口，以避免损伤尺掌皮神经和正中掌皮神经。
