Operative Unit of Maxillo-Facial Surgery, Otolaryngology and Dentistry, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo (Fg), Italy.
Operative Unit of Maxillo-Facial Surgery, Otolaryngology and Dentistry, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo (Fg), Italy.
J Plast Reconstr Aesthet Surg. 2021 May;74(5):1101-1160. doi: 10.1016/j.bjps.2020.10.074. Epub 2020 Nov 8.
The masseteric nerve is often used as a donor nerve in the treatment of facial paralysis. Even if several anatomical studies described landmarks for its identification, their main disadvantages are the anatomical variability and the changes due to surgery. Sixteen dissections were performed on cadaveric specimens. The masseteric muscle (MM), the zygomatic arch (ZA), the masseteric nerve (MN) and the zygomatic branch of the facial nerve (ZB) were identified and their relationships were measured. The relationships between MN and ZB resulted to be constant, with MN intersecting ZB at a depth of 0,78 cm in the muscle, 1,6 cm below ZA and 0,8 cm from the posterior border of MM. The measures obtained demonstrated as the main zygomatic branch of the facial nerve can be a suitable landmark for the identification of the masseteric nerve, with no variations due to the surgical procedure or patient characteristics.
咬肌神经常被用作面瘫治疗中的供体神经。尽管有几项解剖学研究描述了其识别的标志点，但它们的主要缺点是解剖结构的可变性和手术引起的变化。在 16 具尸体标本上进行了解剖。识别了咬肌（MM）、颧骨弓（ZA）、咬肌神经（MN）和面神经颧支（ZB），并测量了它们之间的关系。MN 和 ZB 的关系是恒定的，MN 在肌肉中与 ZB 的交点深度为 0.78 cm，低于 ZA 的 1.6 cm，距离 MM 的后缘 0.8 cm。获得的测量结果表明，面神经的主要颧支可以作为识别咬肌神经的合适标志点，不会因手术过程或患者特征而发生变化。
