[Reinnervation of posterior cricoarytenoid muscle: a comparison of nerve implantation and neuromuscular pedicle transfer in an animal model].
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.
Liang
L
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First Affiliated Hospital, Third Military Medical University, Chongqing.
D000818:Animals; D004285:Dogs; D005260:Female; D007091:Image Processing, Computer-Assisted; D007821:Laryngeal Muscles / Q000294:innervation*; D008297:Male; D009045:Motor Endplate; D009060:Mouth Floor / Q000294:innervation; D009121:Muscle Denervation; D009334:Neck Muscles / Q000294:innervation; D016067:Nerve Transfer / Q000379:methods*