Research Day


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Background: Shoulder arthroplasty is a common, reliable treatment for multiple shoulder pathologies, including osteoarthritis, rotator cuff arthropathy, and proximal humerus fractures. There has been growing interest in identifying and mitigating risk factors associated with readmission following arthroplasty procedures. Currently, there is a paucity of data regarding readmissions after shoulder arthroplasties.

Purpose: To identify factors associated with 30- and 90-day readmission rates following shoulder arthroplasty procedures. Methods: A retrospective review was conducted querying the electronic medical record at a single institution for shoulder arthroplasty procedures performed from July 2012 - June 2017. Patients 18 years and older with at least 90 days of follow-up were included in the study. Factors related to patient demographics, the surgical encounter, and post-operative readmissions were recorded. Logistic regression analysis was used to identify whether each factor was associated with 30-day and 90-day readmission.

Results: A total of 505 patients were included in the study. There was a 4.17% and 3.56% readmission rate within 30 and between 30-90 days, respectively. Patient age, length of stay, presence of congestive heart failure, and lack of peripheral nerve block were significant predictors of 30-day readmission. Length of stay, presence of coronary artery disease, diagnosis of proximal humerus fracture, and discharge to a skilled nursing facility were significant predictors of 90-day readmission.

Conclusions: Age, length of stay, cardiac co-morbidities, lack of peripheral nerve block, and discharge to a skilled nursing facility are significant predictors of readmission following shoulder arthroplasty procedures. Level of Evidence: Level III retrospective study.

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