What question did this study set out to answer?

To identify the incidence and independent patient-related risk factors associated with radiographic dislocation following reverse shoulder arthroplasty in a large multicenter cohort.

June 26, 2023Journal of Shoulder and Elbow SurgeryOpen Access

Predictors of dislocations after reverse shoulder arthroplasty: a study by the ASES complications of RSA multicenter research group

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To identify the incidence and independent patient-related risk factors associated with radiographic dislocation following reverse shoulder arthroplasty in a large multicenter cohort.
Retrospective multicenter study involving 6,621 patients (40% male, mean age 71.0 years) undergoing primary or revision reverse shoulder arthroplasty across 15 US institutions with mean follow-up of 19.4 months.
Methodology and standardized definitions were developed using the iterative Delphi consensus process (requiring ≥75% agreement), followed by multivariable binary logistic regression analysis.
Dislocations occurred in 2.1% (n = 138) of the total cohort at a median of 7.0 weeks postoperatively, with revision procedures demonstrating a significantly higher rate than primary procedures (6.5% vs. 1.6%; P < .001).
Patients undergoing surgery for glenohumeral osteoarthritis with an intact rotator cuff had significantly lower dislocation rates than patients treated for other indications (0.8% vs. 2.5%; P < .001).
Independent risk factors for dislocation included prior postoperative subluxation (OR: 19.52, P < .001), fracture nonunion (OR: 6.53, P < .001), revision arthroplasty (OR: 5.61, P < .001), rotator cuff disease (OR: 2.64, P < .001), male sex (OR: 2.21, P < .001), and omitting subscapularis repair (OR: 1.95, P = .001).

Authors

RLRyan LohreBoston University DSDaniel P. SwansonUMass Memorial Health Care KMKuhan A. MahendrarajNew England Baptist Hospital

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Implication

Retrospective cohort study reveals key risk factors for dislocation in reverse shoulder arthroplasty patients, highlighting higher risk among males and revision procedures.

Cite This Study

Lohre et al. (2023) studied this question.

synapsesocial.com/papers/6aa72284f4c17b7aea2ee4e8 https://doi.org/10.1016/j.jse.2023.05.028

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Implication

Retrospective cohort study reveals key risk factors for dislocation in reverse shoulder arthroplasty patients, highlighting higher risk among males and revision procedures.

Predictors of dislocations after reverse shoulder arthroplasty: a study by the ASES complications of RSA multicenter research group

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Discussion

Implication

Cite This Study

Predictors of dislocations after reverse shoulder arthroplasty: a study by the ASES complications of RSA multicenter research group

Key Points

Discussion

Implication

Cite This Study

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