P93-T EMG and clinical results of Leechavengvongs transfer, our experiences

Abstract

Background The long head triceps radialis branch to axillary nerve transfer (“Leechavenvongs’ transfer”) is an option of restoring the motor function of the deltoid muscle in case of complete axillary nerve or C5,6 root injury. The most advantages are anatomic proximity, appropriate diameter, intraplexal donor, no grafting, useful functional recovery achieved in other sources. Material and methods Group of 11 patients, who underwent Leechavengvongs’s transfer in last 4 years was analysed. The main inclusion criterium was irreparable axillary nerve injury (simple or as a part of brachial plexus injury) with complete denervation signs in deltoid musle preoperatively. We assessed motor recovery according to MRC scoring system and EMG reinnervation signs every 3 months after surgery. We set the preliminary follow - up period for 18 month, complete for 24 months. Results and conclusions 1 patient was exclude from the results (death from other reasons). The rest of 10 patients had an evidence of partial reinnervation signs 6 months after surgery. We observed good functional recovery by 5 patients, if surgery was performed early after injury (to 6 months at latest). We conclude the Leechavengvongs transfer is reliable and effective procedure. All patients had an evidence of partial muscle reinnervation. In agreement with other sources there was no impairment of the triceps brachii function. We consider the injury-to-surgery time is an important factor of good results. This group of patients is too small to consider general.