# Clinical and Surgical Outcomes of Shoulder Arthrodesis

## TL;DR

Shoulder arthrodesis can effectively reduce pain and improve patient satisfaction in selected cases, despite being a rare procedure.

## Contribution

This study provides clinical and surgical outcome data for shoulder arthrodesis in a multicenter, long-term patient cohort.

## Key findings

- Radiographic union was achieved in 93% of patients.
- 79% of patients reported satisfaction with the procedure.
- 36% of patients required additional surgery due to complications.

## Abstract

Introduction: Shoulder arthrodesis is typically seen as a salvage procedure with limited functional objectives. In appropriately selected patients, it may effectively alleviate pain, provide stable motion, and offer patient function satisfaction. However, there have been few reports on the outcomes following shoulder arthrodesis. Methods: A multicenter, retrospective chart review of patients undergoing shoulder arthrodesis between 2001 and 2023 in Western Australia was conducted. Clinical records and imaging were then reviewed to determine patient demographics. A cross-sectional analysis of Visual Analogue (VAS), Oxford Shoulder (OSS), and American Shoulder and Elbow Surgeons Shoulder (ASES) Scores, satisfaction and complication rates was conducted. Results: In total, 14 patients with a mean age of 39.5 years (range 22–52 years, 71% male) with a mean follow-up of 7.4 years (range 3 months–18 years) were identified. The most common indications for arthrodesis included osteoarthritis (8, 57%) and instability (6, 43%). Major contributory factors were recurrent seizures (5, 36%) and multiple surgeries (4, 29%). Radiographic union was observed in 13 (93%) patients. The mean VAS was 2.8 (range 0–7), mean OSS was 33.0 (range 23–42) and ASES score was 55.4 (range 37–82). In total, 11 patients (79%) reported being satisfied. Five (36%) patients returned to theatre for complications. Conclusions: In this patient series, shoulder arthrodesis demonstrates a notable efficacy in pain reduction, high satisfaction, acceptable function, and complication rates.