Department of Rehabilitation Medicine, Graduate School, The Catholic University of Korea, Seoul, Republic of Korea.
Department of Rehabilitation Medicine, Eunpyung St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
Surg Radiol Anat. 2023 Dec;45(12):1593-1597. doi: 10.1007/s00276-023-03260-2. Epub 2023 Oct 28.
To locate the intramuscular nerve branches of the flexor digitorum superficialis (FDS) and determine the accurate site for botulinum toxin injection.
This study anatomically dissected 24 arms of 12 fresh adult cadavers to find intramuscular nerve endings in the FDS. The motor branch points (MBPs), proximal limit points (PLPs), and distal limit points (DLPs) of the terminal intramuscular nerve endings were identified. These three parameters were expressed in longitudinal and transverse coordinates in relation to the FDS driving as a reference line.
The mean length of the reference line was 234.6 ± 11.2 mm. In the longitudinal coordinate, the MBPs, PLPs, and DLPs were located at 41.6% (standard deviation (SD) 2.6%), 35.1% (SD 4.1%), and 53.4% (SD 4.6%) of the reference line in the first main branch and 72.4% (SD 4.5%), 67.5% (SD 1.5%), and 82.0% (SD 5.7%) in the second main branch, respectively. The mean value of the transverse coordinate was not greatly deviated from the reference line.
The MBPs of the first and second main branches are located approximately 41.6% and 72.4% of the reference line, which considers the FDS direction, respectively. This finding helps determine the optimal injection site for botulinum toxin in the FDS.
定位指浅屈肌（FDS）的肌内神经分支，并确定肉毒毒素注射的准确部位。
本研究解剖了 12 具新鲜成人尸体的 24 只手臂，以寻找 FDS 中的肌内神经末梢。确定运动支点（MBP）、近侧极限点（PLP）和远侧极限点（DLP）。这三个参数以 FDS 为参考线的纵向和横向坐标表示。
参考线的平均长度为 234.6±11.2mm。在纵向坐标中，第一主支的 MBP、PLP 和 DLP 分别位于参考线的 41.6%（标准差 2.6%）、35.1%（标准差 4.1%）和 53.4%（标准差 4.6%），第二主支的 MBP、PLP 和 DLP 分别位于参考线的 72.4%（标准差 4.5%）、67.5%（标准差 1.5%）和 82.0%（标准差 5.7%）。横向坐标的平均值与参考线相差不大。
第一和第二主支的 MBP 分别位于参考线的大约 41.6%和 72.4%处，这考虑了 FDS 的方向。这一发现有助于确定 FDS 中肉毒毒素注射的最佳部位。
