Shoulder arthrodesis with plate fixation: Functional outcome analysis.

Area of Science:

• Orthopedic Surgery
• Musculoskeletal Research
• Surgical Techniques

Background:

• Shoulder arthrodesis is a surgical procedure to fuse the shoulder joint, often indicated for severe pain, instability, or functional loss.
• Single-plate fixation offers a method for achieving arthrodesis, but outcomes can vary based on patient diagnosis and functional status.

Purpose of the Study:

• To evaluate the efficacy and patient-reported outcomes of single-plate shoulder arthrodesis.
• To assess the influence of preoperative diagnosis on functional outcomes and patient satisfaction following shoulder fusion.

Main Methods:

• Retrospective review of 57 patients undergoing shoulder arthrodesis with a single 10-hole plate.
• Technique involved glenohumeral and acromiohumeral arthrodesis in a standardized position (30° abduction, 30° internal rotation, 30° flexion).
• Patient function assessed via activities of daily living (ADL), subjective satisfaction, and pain levels.

Main Results:

• High fusion rate (54/57 shoulders) within 10° of the desired position; 14% complication rate.
• Highest patient satisfaction reported for brachial plexus injury, osteoarthritis, and failed total shoulder arthroplasty.
• Persistent instability noted in 4/6 multidirectional instability patients despite solid fusion; significant impact of diagnosis and hand function on ADL scores.

Conclusions:

• Single-plate shoulder arthrodesis is an effective fusion technique with a low complication rate for select indications.
• Preoperative diagnosis, hand function, and work status are critical determinants of functional outcomes and patient satisfaction.
• Multidirectional shoulder instability remains a challenge, with some patients experiencing persistent instability post-fusion.