Chen L, Gu Y D
Huashan Hospital, Shanghai Medical University.
Zhonghua Wai Ke Za Zhi. 1992 Sep;30(9):525-7, 570-1.
This study compared the functional results of contralateral C7 root neurotization with homolateral phrenic nerve transfer for repairing root avulsion of brachial plexus in rats. It was found that in the C7 nerve root group all the parameters of evoked muscle potential amplitude (EMPA), regenerating axon count, biceps weight and muscle fibre area, and muscular maximal tetanus tension were statistically superior (P < 0.05-0.01) to those in the phrenic nerve group; while there were no significant differences between these two groups in motor nerve latency regenerating axon area and persisting time of muscular maximal tetanus tension (P > 0.05). The reasons why C7 root neurotization is superior to phrenic nerve transfer were also discussed.
本研究比较了大鼠臂丛神经根性撕脱伤修复中，对侧C7神经根神经转位术与同侧膈神经移位术的功能结果。结果发现，在C7神经根组中，诱发性肌肉动作电位幅度（EMPA）、再生轴突计数、肱二头肌重量和肌纤维面积以及肌肉最大强直张力等所有参数在统计学上均优于膈神经组（P<0.05 - 0.01）；而两组在运动神经潜伏期、再生轴突面积和肌肉最大强直张力持续时间方面无显著差异（P>0.05）。同时还讨论了C7神经根神经转位术优于膈神经移位术的原因。
