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.
Abbreviations used in this paper: MRC = Medical Research Council; SSEP = somatosensory evoked potential.
Address correspondence to: Chunlin Hou, M.D., Department of Orthopedic Surgery, Changzheng Hospital, The Second Military Medical University, Fengyang Road 415, Shanghai 200003, People's Republic of China. email: email@example.com.
Please include this information when citing this paper: published online July 15, 2011; DOI: 10.3171/2011.6.JNS101604.
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