Ellis D A, Bakala C D
Department of Otolaryngology, University of Toronto, Ontario.
J Otolaryngol. 1998 Aug;27(4):222-7.
This study was conducted to determine the motor innervation of the corrugator supercilii muscle and, based on this information, develop a new surgical technique to treat patients with hyperfunctional corrugator muscles with deep vertical glabellar creases.
Microdissection of five fresh-frozen cadaveric heads was performed. Following this, patients presenting with a complaint of vertical glabellar creases (frown lines) due to hyperfunctional corrugator supercilii muscles were offered a new surgical technique to divide the nerve lateral to its entry into the corrugator supercilii muscle.
The motor innervation of the corrugator supercilii muscle is constant and predictable in its course. Patients treated with motor nerve neurotomy showed considerable weakening of the corrugator supercilii muscle function as determined by clinical testing; however, the nerve lysis did not affect the glabellar depressor muscles.
The anatomy of the motor nerve supply to the corrugator supercilii muscle is described. Lysis of the nerve appears to be safe, reliable, and effective in weakening the strength of the corrugator supercilii muscles and improving the appearance of vertical glabellar creases.
本研究旨在确定皱眉肌的运动神经支配情况，并基于此信息开发一种新的手术技术，用于治疗因皱眉肌功能亢进导致眉间出现深垂直皱纹的患者。
对五个新鲜冷冻的尸体头部进行显微解剖。之后，向因皱眉肌功能亢进出现垂直眉间皱纹（皱眉纹）的患者提供一种新的手术技术，即于神经进入皱眉肌处外侧切断神经。
皱眉肌的运动神经支配在走行上恒定且可预测。经运动神经切断术治疗的患者，临床测试显示皱眉肌功能明显减弱；然而，神经松解术并未影响眉间降肌。
描述了皱眉肌运动神经供应的解剖结构。神经松解术在减弱皱眉肌力量和改善垂直眉间皱纹外观方面似乎安全、可靠且有效。
