期刊
JOURNAL OF ARTHROPLASTY
卷 35, 期 9, 页码 2451-2457出版社
CHURCHILL LIVINGSTONE INC MEDICAL PUBLISHERS
DOI: 10.1016/j.arth.2020.04.073
关键词
outpatient; total knee arthroplasty; NSQIP; readmission; reasons; risk factors
类别
Background: A higher volume of primary total knee arthroplasty (TICS) is starting to be performed in the outpatient setting. However, data on appropriate patient selection in the current literature are scarce. Methods: Patients who underwent primary TICS were identified in the 2012-2017 National Surgical Quality Improvement Program database. Outpatient procedure was defined as having a hospital length of stay of 0 days. The primary outcome was a readmission within the 30-day postoperative period. Reasons for and timing of readmission were identified. Risk factors for and effect of overnight hospital stay on 30-day readmission were evaluated. Results: A total of 3015 outpatient TICS patients were identified. The incidence of 30-day readmission was 2.59% (95% confidence interval [CI] 2.02-3.15). The majority of readmissions were nonsurgical site related (64%), which included thromboembolic and gastrointestinal complications. Risk factors for 30-day readmission include dependent functional status prior to surgery (relative risk [RR] 6.4, 95% CI 1.91-21.67, P = .003), hypertension (RR 2.5, 95% CI 1.47-4.25, P = .001), chronic obstructive pulmonary disease (RR 2.4, 95% CI 1.01-5.62, P = .047), and operative time >= 91 minutes (>= 70th percentile) (RR 1.9, 95% CI 1.17-2.98, P = .008). For patients who had some of these risk factors, their rate of 30-day readmission was significantly reduced if they had stayed at least 1 night at the hospital. Conclusion: Overall, the rate of 30-day readmission after outpatient TICS was low. Patients who are at high risk for 30-day readmission after outpatient TICS include those with dependent functional status, hypertension, chronic obstructive pulmonary disease, and prolonged operative time. These patients had reduced readmissions after overnight admission and seem to benefit from an inpatient hospital stay. (C) 2020 Elsevier Inc. All rights reserved.
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