Shoulder Arthrodesis for Traumatic Brachial Plexus Injuries: Functional Outcomes and Complications

Abstract

Background

The external rotation and abduction of shoulder are considered one of the priorities of reconstruction in brachial plexus injury. The aim of this study was to evaluate the functional results and complications of shoulder arthrodesis in patients with brachial plexus injury to better comprehend the benefits of this procedure.

Methods

Between 2015 and 2019, 15 shoulder arthrodesis were performed in patients with long-standing brachial plexus injury. The main indication for arthrodesis was absent or poor recovery of shoulder abduction and external rotation. Patients presented different levels of injury. Shoulder measurements of active abduction and external rotation were made based on image records of the patients. A long 4.5-mm reconstruction plate was fit along the scapular spine, acromion, and lateral proximal third of the humerus. Structured bone graft was fit into the subacromial space.

Results

The mean preoperative abduction was 16°, and the mean postoperative abduction was 42°. The mean preoperative external rotation was −59°, and the mean postoperative external rotation was −13°. The mean increase in abduction and external rotation was 25° and 45°, respectively. Bone union was achieved in all cases at an average time of 5.23 months. We experienced humeral fractures in 26.66% of the cases, which were all successfully treated nonoperatively.

Conclusions

Shoulder arthrodesis is a rewarding procedure for patients with brachial plexus injuries. A marked improvement in the upper limb positioning was observed in all patients. It should be considered as the main therapeutic option in cases where nerve reconstruction is no longer possible.

Keywords

shoulder anatomy autograft basic science biomechanics nerve humerus fracture/dislocation brachial plexus diagnosis soft tissue reconstruction trauma microsurgery specialty shoulder arthrodesis

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