Sihler's staining of the anterior belly of digastric muscle for botulinum toxin injection.

IF 1.4 4区医学 Q2 Medicine Surgical and Radiologic Anatomy Pub Date : 2024-09-01 Epub Date: 2024-07-16 DOI:10.1007/s00276-024-03440-8

You-Jin Choi, Hye-Won Hu, Soo-Bin Kim, Ji-Hyun Lee, Seong-Taek Kim, Hee-Jin Kim

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Abstract

Purpose: The anterior belly of the digastric muscle (ABDM) is the target of botulinum toxin injection; however, anatomical considerations related to the injection point are absent. This study used Sihler's staining to analyze the intramuscular nerve distribution of ABDM to identify the most effective botulinum toxin injection points.

Methods: We used 12 specimens from 6 embalmed cadavers in this study. The specimens were manually dissected to preserve the mylohyoid nerve and subjected to Sihler's staining. From the gnathion to and hyoid bone, the ABDM was divided into three equal parts, distinguishing the anterior, middle, and posterior thirds.

Results: Only a branch of the mylohyoid nerve entered the ABDM, and its entry point was located in the middle-third region in all cases. The nerve endings were concentrated in the middle third (100%), followed by the anterior third (58.3%) and were not observed in the posterior third.

Conclusion: The landmarks used in this study (gnathion and hyoid bone) are easily palpable on the skin surface, allowing clinicians to target the most effective injection site (middle third of ABDM). These results provide scientific and anatomic evidence for injection points, and will aid in the management of ABDM injection procedures in clinical practice.

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用于注射肉毒杆菌毒素的掘腹肌前腹的 Sihler 染色。

目的：掘腹肌前腹（ABDM）是肉毒杆菌毒素注射的靶点，但缺乏与注射点相关的解剖学考虑。本研究采用西勒染色法分析 ABDM 的肌内神经分布，以确定最有效的肉毒毒素注射点：本研究使用了来自 6 具防腐尸体的 12 个标本。方法：本研究使用了来自 6 具防腐尸体的 12 个标本。标本经人工解剖后保留了腓肠肌神经，并进行了西勒染色。从舌骨到舌骨，ABDM 被分成三等份，区分为前三份、中三份和后三份：结果：只有一条舌骨神经分支进入 ABDM，而且所有病例的神经进入点都位于中三度区域。神经末梢主要集中在中1/3（100%），其次是前1/3（58.3%），后1/3未见神经末梢：结论：本研究中使用的地标（舌骨和舌骨）很容易在皮肤表面触摸到，使临床医生能够锁定最有效的注射部位（ABDM 的中三分之一）。这些结果为注射点提供了科学的解剖学证据，有助于临床实践中 ABDM 注射程序的管理。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Surgical and Radiologic Anatomy Medicine-Pathology and Forensic Medicine

CiteScore

2.40

自引率

14.30%

发文量

期刊介绍： Anatomy is a morphological science which cannot fail to interest the clinician. The practical application of anatomical research to clinical problems necessitates special adaptation and selectivity in choosing from numerous international works. Although there is a tendency to believe that meaningful advances in anatomy are unlikely, constant revision is necessary. Surgical and Radiologic Anatomy, the first international journal of Clinical anatomy has been created in this spirit. Its goal is to serve clinicians, regardless of speciality-physicians, surgeons, radiologists or other specialists-as an indispensable aid with which they can improve their knowledge of anatomy. Each issue includes: Original papers, review articles, articles on the anatomical bases of medical, surgical and radiological techniques, articles of normal radiologic anatomy, brief reviews of anatomical publications of clinical interest. Particular attention is given to high quality illustrations, which are indispensable for a better understanding of anatomical problems. Surgical and Radiologic Anatomy is a journal written by anatomists for clinicians with a special interest in anatomy.