Abstract
BackgroundPrior studies have shown hypertensive patients to be at an increased risk of postoperative complications following various surgeries, including revision total knee arthroplasty (rTKA). However, whether these risks are compounded in octogenarian patients has not yet been well explored. The purpose of this study was to analyze whether hypertensive octogenarians, aged 80 to 89, undergoing rTKA are at an increased risk of postoperative complications relative to the younger hypertensive geriatric population aged 65 to 79. MethodsA national database was used to collect data for all hypertensive patients who underwent rTKA from 2006 to 2018. Patients were stratified into an aged 65 to 79 cohort and an aged 80 to 89 cohort. Demographics, medical comorbidities, and postoperative complications were compared between the two cohorts. Bivariate and multivariate analyses were performed. ResultsOf the 6,599 hypertensive patients who underwent rTKA, 5,477 (83.0%) patients were in the aged 65 to 79 group and 1,122 (17.0%) patients were in the aged 80 to 89 group. Following adjustment to control for demographic and comorbidity data, relative to patients in the 65 to 79 age group, hypertensive patients who were 80–89 years old had an increased risk of unplanned reintubation (OR 3.52; p = 0.008), urinary tract infection (OR 2.08; p = 0.011), postoperative transfusion (OR 1.90; p < 0.001), myocardial infarction (OR 2.55; p = 0.017), and extended length of hospital stay (OR 1.77; p < 0.001). ConclusionHypertensive octogenarian patients undergoing rTKA have an increased risk of an extended length of stay and other postoperative complications relative to their younger hypertensive geriatric counterparts. Orthopaedic surgeons should consider a multi-disciplinary approach to managing hypertension in these octogenarian patients prior to surgery to minimize this risk. However, even with this risk, an octogenarian age should not be used independently in evaluating if a hypertensive geriatric patient is a safe rTKA candidate.
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