In most cases, recovery occurs on its own within several months. Physical therapy helps to maintain the full range of motion of the shoulder and to strengthen surrounding muscles. If there are no signs of recovery after 3 to 4 months, surgery may be needed. If the nerve function cannot be restored, other options include muscle transfer or fusion of the shoulder.
Surgery can result in infection, bleeding, and allergic reaction to the anesthesia.
An exercise program to maintain shoulder flexibility and strength should be continued after treatment. The return of sensation and motion should be monitored, and any worsening of symptoms should be reported to the healthcare provider.