The axillary nerve injuries most commonly are observed after trauma such as contusion-stretch, gunshot wound, laceration and iatrogenic injuries. Two of the most commons causes seem to be the glenohumeral dislocation and the proximal humerus fractures. The axillary nerve may sustain a simple contusion, or its terminal elements may be avulsed from the deltoid muscle. Compressive neuropathy in the quadrilateral space also has been reported (quadrilateral space syndrome, Calhill and Palmer, 1983). The axillary nerve injuries incidence represents less than 1% of all nerve injuries.
Patients were operated between 3 to 6 months after trauma and an anterior deltopectoral approach was usually followed during surgery. The follow up period ranged from 1 to 8 years.
83 operatively treated patients with 85 fractures were followed-up. Anatomic reduction was achieved in 57 fractures, satisfactory in 18 and poor in 10 fractures. Functional outcome was excellent or good in 60 (72.3%) patients and fair and poor in 23 (27,7%).The complications were 3 wound infections, 4 cases of femoral head osteonecrosis, 3 cases of secondary loss of reduction and 5 cases of significant ectopic ossification.