Im Hyung Soon, Im Jin Young, Kim Ki Hoon, Kim Dong Hwee, Park Byung Kyu
Department of Physical Medicine and Rehabilitation, Korea University Ansan Hospital, Ansan, Korea.
Ann Rehabil Med. 2017 Jun;41(3):421-425. doi: 10.5535/arm.2017.41.3.421. Epub 2017 Jun 29.
To define the anatomy of the lateral antebrachial cutaneous nerve (LABCN) and the cephalic vein (CV) in the anterior forearm region of living humans using ultrasonography for preventing LABCN injury during cephalic venipuncture.
Thirty forearms of 15 healthy volunteers were evaluated using ultrasonography to identify the point where the LABCN begins to contact with the CV, and the point where the LABCN separates from the CV. The LABCN pathway in the forearm in relation to a nerve conduction study was also evaluated.
The LABCNs came in contact with the CV at a mean of 0.6±1.6 cm distal to the elbow crease, and separated from the CV at a mean of 7.0±3.4 cm distal to the elbow crease. The mean distance between the conventionally used recording points (point R) for the LABCN conduction study and the actual sonographic measured LABCN was 2.4±2.4 mm. LABCN usually presented laterally at the point R (83.3%).
The LABCN had close proximity to the CV in the proximal first quarter of the forearm. Cephalic venipuncture in this area should be avoided, and performed with caution if needed.
利用超声检查确定活体人类前臂前区的前臂外侧皮神经（LABCN）和头静脉（CV）的解剖结构，以预防头静脉穿刺过程中LABCN损伤。
对15名健康志愿者的30条前臂进行超声检查，确定LABCN开始与CV接触的点以及LABCN与CV分离的点。还评估了前臂中LABCN与神经传导研究相关的路径。
LABCN与CV在肘横纹远端平均0.6±1.6 cm处接触，并在肘横纹远端平均7.0±3.4 cm处与CV分离。LABCN传导研究中常规使用的记录点（点R）与实际超声测量的LABCN之间的平均距离为2.4±2.4 mm。LABCN在点R处通常位于外侧（83.3%）。
LABCN在前臂近端四分之一处与CV紧邻。该区域应避免进行头静脉穿刺，如有需要应谨慎操作。
