Glenohumeral Arthrodesis With Locking Compression Plate.

Glenohumeral arthrodesis is performed for paralytic disorders. Internal fixation with plates has been described to diminish the rate of nonunion associated with this procedure. Because plates are located over the scapular spine and the acromion to add a point of bony union between the acromion and the humeral head, skin irritation and hardware removal are the main complications associated with plates. We describe a technique using a locking compression plate placed under the acromion to decrease complications associated with the hardware without increasing the risk of nonunion. The technique presented here has 2 biomechanical principles of fixation: compression and neutralization. Compression by 2 screws allows for a bony union at the glenohumeral joint, and neutralization by the locking compression plate allows for early postoperative motion.