Severe obesity as an independent risk factor for post-operative dislocation following reverse total shoulder arthroplasty: a PearlDiver database analysis
Year: 2026
Type: article
Abstract: Background: , corresponding to World Health Organization class II obesity) would be independently associated with an increased risk of dislocation following rTSA. Methods: were excluded), and matched 4:1 by age, sex, Elixhauser Comorbidity Index, and smoking status. Post-operative dislocation was identified using ICD-10 diagnostic codes (ICD-10-D-T84028A, ICD-10-D-T84029A). Outcomes were assessed at 6 months, 1 year, and 2 years post-operatively. Multivariable logistic regression and Kaplan-Meier survival analyses were performed. Results: < .0001). All 3 time-point comparisons remained statistically significant after Bonferroni correction (adjusted α = 0.017). Conclusion: ) was associated with a statistically significant but modest increase in the risk of post-operative dislocation following rTSA at short-term follow-up. The magnitude of the association was moderate and the absolute risk difference small. These findings support obesity-specific pre-operative risk counseling on the risk of post-operative instability after rTSA.
Institution: Yale University
Language: English
Subfield: Surgery
Field: Medicine
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $2,000
OpenAlex ID: W7214960424