The authors reviewed electronic and paper medical records of 29 cases of glenohumeral arthrodesis performed between 1992 and 2009. They also analyzed patient questionnaires, which included DASH, SSV, and SF-36 scoring instruments.
All patients reported improvement in pain at the time of their latest postoperative follow-up. However, 12 patients (41%) had postoperative complications, including nonunions, fractures, and deep infections. Eleven patients (38%) required additional post-arthrodesis surgical procedures. The mean postoperative shoulder position was 60° in flexion and 13° in external rotation.
The authors identified the following correlations between patient/surgical factors and outcomes:
- Patients with a history of brachial plexus injuries had worse clinical and functional outcomes.
- Patients with shoulders fused in abduction and flexion of >25° had better shoulder function but a slightly higher risk of peri-fixation fracture.
- There were no significant outcome differences between procedures that used plate-and-screw and screw-only fixation. However, incorporation of the acromion in fixation was strongly associated with a lower risk of nonunion.
The authors conclude that despite the limitations of this complex salvage procedure, “its ability to relieve pain and to maintain reasonable upper-extremity function in select patients should not be overlooked.”