Department of Orthopedic Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai, People’s Republic of China.
J Neurosurg. 2011 Oct;115(4):865-9. doi: 10.3171/2011.6.JNS101604. Epub 2011 Jul 15.
Contralateral C-7 transfer is often used in patients with brachial plexus avulsion injury. Traditionally, the contralateral C-7 root has only been transferred to a single nerve, such as the median or radial nerve. In this study, the authors aimed to evaluate the efficacy of contralateral C-7 transfer to 2 different recipient nerves in patients with brachial plexus avulsion injuries.
Between 2004 and 2008, 10 patients with brachial plexus root avulsions underwent nerve reconstruction using a modified C-7 neurotization technique. In this procedure, the contralateral C-7 root was transferred via vascularized ulnar nerve grafts to both the musculocutaneous nerve and the median nerve on the affected side.
The strength of the biceps muscles increased to M3 or M4 in 6 patients and to M2 in 2 patients. The median nerve transfers led to regained motor function and strength of the wrist and finger flexors with improvement to M3 in 5 patients. Seven patients showed notable gains of sensory function (≥ S3).
Contralateral C-7 transfer to 2 different recipient nerves is a feasible and efficient approach in patients with brachial plexus avulsion injuries when the donor nerve is limited.
正中神经或桡神经等单一神经的传统修复方法已广泛应用于治疗臂丛神经根性撕脱伤。本研究旨在评估将健侧 C7 神经根同时转移至两条不同的受神经（肌皮神经和正中神经）在臂丛神经根性撕脱伤患者中的疗效。
2004 年至 2008 年间，10 例臂丛神经根性撕脱伤患者采用改良的 C7 神经化技术进行神经重建。在该手术中，通过带血管的尺神经移植将健侧 C7 神经根转移至患侧的肌皮神经和正中神经。
6 例患者的肱二头肌肌力增加至 M3 或 M4，2 例患者增加至 M2。正中神经转位后，5 例患者的腕部和手指屈肌的运动功能和力量恢复至 M3。7 例患者的感觉功能（≥ S3）有明显改善。
当供体神经有限时，将健侧 C7 神经根同时转移至两条不同的受神经是治疗臂丛神经根性撕脱伤的一种可行且有效的方法。
