A comparison of functional outcomes for triceps motor branch transfer to the anterior division axillary nerve in upper trunk brachial plexus injuries versus non–brachial plexus axillary nerve injuries

Patients with an AXN injury, compared to those with a UT injury, had better postoperative abduction strength and shoulder range of motion after triceps branch transfer to the anterior division of the AXN. Triceps strength was not significantly changed after the procedure in the two groups. The study findings suggest that the outcomes of triceps branch transfer to the anterior division of the AXN are different based on the location and type of injury, providing insight into prognosis while counseling patients.