Jariwala Arpit, Krishnan Balamurali, Soames Roger, Wigderowitz Carlos A
Department of Orthopaedics and Trauma Surgery, TORT Centre, Ninewells Hospital, Dundee, Scotland, United Kingdom.
Centre for Anatomy and Human Identification, College of Life Sciences, University of Dundee, Dundee, Scotland, United Kingdom.
J Wrist Surg. 2014 Feb;3(1):60-3. doi: 10.1055/s-0034-1365828.
A thorough knowledge of the anatomy of the terminal branch of the posterior interosseous nerve (PIN) and its relationship to the anterior interosseous nerve (AIN) is essential in facilitating regional anesthetic blocks and planning surgical exposures for wrist surgery and arthrodesis of wrist and proximal row carpectomy. This cadaveric study focused on the anatomy and course of the PIN and its anatomical relationships at the distal forearm. Thirty embalmed cadaver forearms were dissected using microsurgical techniques. A structured pro forma was used to collect data. The PIN was consistently found in the fourth extensor compartment in all specimens. The last motor branch was given off 46.9 ± 8.4 mm (mean ± standard deviation) from the most proximal part of the ulnar head. The AIN was found lying consistently on the anterior aspect of the interosseous membrane, being on average 2.8 ± 0.2 mm (mean ± standard deviation) from the PIN. This knowledge will facilitate the planning of diagnostic and therapeutic procedures associated with the wrist.
深入了解骨间后神经（PIN）终末支的解剖结构及其与骨间前神经（AIN）的关系，对于实施区域麻醉阻滞以及规划腕部手术、腕关节融合术和近端排腕骨切除术的手术入路至关重要。这项尸体研究聚焦于PIN在远端前臂的解剖结构、走行及其解剖关系。使用显微外科技术对30具防腐处理的尸体前臂进行了解剖。采用结构化表格收集数据。在所有标本中，均发现PIN位于第四伸肌间隔内。最后一支运动支发自尺骨头最近端46.9±8.4毫米（平均值±标准差）处。发现AIN始终位于骨间膜的前方，平均距离PIN 2.8±0.2毫米（平均值±标准差）。这些知识将有助于规划与腕部相关的诊断和治疗程序。
