Predictors of Length of Stay and Discharge Disposition After Shoulder Arthroplasty: A Systematic Review

Abstract

Introduction: Identifying patient factors that affect length of stay (LOS) and discharge disposition after shoulder arthroplasty is key in managing patient expectations. In this systematic review, we identify patient-specific covariates that correlate with increased LOS and need for discharge to a facility. Methods: We searched biomedical databases to identify associations between patient-specific factors and LOS and discharge disposition after shoulder arthroplasty. We included all studies involving hemiarthroplasty, anatomic shoulder arthroplasty, and reverse shoulder arthroplasty. Reported patient and provider factors were evaluated for their association with increased LOS and discharge to a facility. Results: Twenty-two studies were identified. Age >65 years, female sex, obesity, and reverse shoulder arthroplasty were associated with extended LOS and correlated with discharge to a facility. Greater hospital and surgeon volume were associated with decreased LOS and decreased risk of discharge to a facility. Local injection of liposomal bupivacaine combined with intravenous dexamethasone was associated with reduced LOS. Discussion: Patient factors affecting LOS and likelihood of discharge to a facility include age >65 years, female sex, diabetes, obesity, and reverse shoulder arthroplasty. These factors can be used to develop studies to preoperatively predict outcomes after shoulder arthroplasty and to help identify patients who may be at risk of prolonged postoperative admission. Level of Evidence: Prognostic level IV

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