Rachel Bordelon, Amy Trammell, Zhongyu Li
Nerve injuries after reverse total shoulder arthroplasty (rTSA) are rare, and fortunately, most patients recover without long-term sequelae. However, irreversible deltoid paralysis due to brachial plexus or axillary nerve injury is devastating, as the deltoid is the main force of movement of the humerus after rTSA. Denervation of the deltoid results in weakness in abduction, forward flexion, and elevation, as well as varying degrees of chronic pain and shoulder instability. Treatment options for chronic deltoid denervation after axillary nerve or brachial plexus injuries are limited, since nerve repair, graft, or transfer procedures are ineffective...
2023: Journal of Surgical Orthopaedic Advances