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Updated: Feb 25, 2026
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Reverse Total Shoulder Arthroplasty
Published on: July 5, 2011
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Risk factors associated with intraoperative complications in primary shoulder arthroplasty
Paul D Cowling1, Philip Holland1, Lucksy Kottam1
1a Department of Orthopaedics and Trauma , James Cook University Hospital , Middlesbrough , UK.
Acta Orthopaedica
|August 8, 2017
Summary
Intraoperative complications in primary shoulder arthroplasty occur in 2.5% of cases, with fractures being most common. Risk factors include specific diagnoses and implant types, while the superior surgical approach may reduce complications.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
- Public Health
Background:
- The number of shoulder arthroplasties is increasing globally.
- Predictors for intraoperative complications during primary shoulder replacement are not well understood.
Purpose of the Study:
- To determine the incidence of intraoperative complications in primary shoulder arthroplasty.
- To identify risk factors associated with these complications using national registry data.
Main Methods:
- Utilized data from the National Joint Registry (NJR) of England, Wales, Northern Ireland, and the Isle of Man.
- Analyzed 12,559 primary shoulder arthroplasties for intraoperative complications.
- Employed multivariable binary logistic regression to identify risk factors.
Main Results:
- The overall intraoperative complication rate was 2.5%, with fractures accounting for 1.6%.
- Higher complication risks were observed for avascular necrosis and trauma sequelae compared to osteoarthritis.
- Stemmed hemiarthroplasty and reverse shoulder arthroplasty showed higher complication rates than total shoulder arthroplasty.
Conclusions:
- This study identifies previously unrecognized risk factors for intraoperative complications in shoulder arthroplasty, including surgical approach.
- The superior approach was associated with fewer complications compared to the deltopectoral approach.
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