Clinical study of nerve transfer of pronator teres branch and brachialis branch for reconstructing finger flexion after C8 to T,or C7 to T1 brachial plexus avulsions
Objective To report the clinical efficacy of nerve transfer of pronator teres branch and brachialis branch for reconstructing finger flexion after C8 to T,or C7 to T,brachial plexus avulsions.Methods Nerve transfer of pronator teres branch and brachialis branch was performed on 8 patients with C7 to T,brachial plexus avulsion injury and 2 patients with C8 to T,brachial plexus avulsion injury.The postoperative follow-up was more than 2 years,and then finger flexion strength,electromyography and grip strength were assessed.Results The postoperative follow-up was 91.4 months,and none of the 10 patients had functional deficits of forearm pronation or elbow flexion.The postoperative finger flexion strength of 9 patients(9/10)reached at least M3,of which 6 patients reached M4 after surgery,and the average grip strength of patients reached 3.7 kg.Conclusion Nerve transfer of pronator teres branch and brachialis branch is safe and effective,and this procedure can improve the finger flexion strength for patients with C8 to T,or C7 to T,brachial plexus avulsions.
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