Liang L
First Affiliated Hospital, Third Military Medical University, Chongqing.
Zhonghua Er Bi Yan Hou Ke Za Zhi. 1993;28(1):19-21, 59.
Recently, methods of reinnervating posterior cricoarytenoid muscle (PCA) have been reported by many authors. This study was undertaken to compare direct implantation (NI) of a branch of the ansa cervicalis supplying the sternothyroid muscle with the transfer of a neuro-muscular pedicle of the ansa cervicalis innervating the sternothyroid muscle (NMP) in a denervated PCA dog model. Both were carried out immediately after denervation. The results showed that reinnervation with return of physiological function of PCA were got by both methods of nerve transfer. The NMP was apparently superior to the NI. The reason was that the NMP implanted more motor end-plates into the denervated PCA. So the NMP should be chosen first when possible. The NI is consistently effective when NMP is not available.
近来，许多作者报道了使环杓后肌（PCA）重新获得神经支配的方法。本研究旨在比较在失神经支配的PCA犬模型中，将支配胸骨甲状肌的颈袢分支直接植入（NI）与转移支配胸骨甲状肌的颈袢神经肌肉蒂（NMP）这两种方法。两种方法均在去神经支配后立即进行。结果显示，两种神经转移方法均使PCA恢复了生理功能而实现了重新神经支配。NMP明显优于NI。原因是NMP向失神经支配的PCA植入了更多运动终板。因此，如有可能应首选NMP。当无法获得NMP时，NI始终有效。
