Reverse total shoulder arthroplasty in neglected anterior shoulder dislocation with glenoid bone defect: a...

Area of Science:

• Orthopedic Surgery
• Shoulder Reconstruction
• Arthroplasty

Background:

• Neglected anterior shoulder dislocation (NASD) can lead to significant glenoid bone loss.
• Reverse total shoulder arthroplasty (RSA) has shown promise for NASD treatment.
• Limited data exists on RSA outcomes specifically for NASD with glenoid bone defects.

Purpose of the Study:

• To evaluate the clinical outcomes of RSA in patients with NASD and associated glenoid bone defects.
• To compare RSA outcomes in NASD patients with a matched control group.

Main Methods:

• Retrospective cohort study of 24 NASD patients treated with RSA (2018-2022).
• Patients with glenoid defects ≥30% underwent autologous bone grafting (BG).
• Outcomes measured included range of motion, pain (VAS), and functional scores (SSV, CS, ASES).

Main Results:

• NASD patients showed significant postoperative improvements in ROM and functional scores.
• Functional outcomes were comparable between NASD and cuff tear arthropathy groups.
• No significant differences in outcomes were found between BG and non-BG groups.

Conclusions:

• RSA is an effective treatment for NASD with glenoid bone loss.
• Outcomes of RSA for NASD are comparable to those for cuff tear arthropathy.
• Bone grafting for defects ≥30% yields favorable results without compromising functional recovery.