• George A Yakubek, Gannon L Curtis, Anton Khlopas, Mhamad Faour, Alison K Klika, Michael A Mont, Wael K Barsoum, and Carlos A Higuera.
• Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio.
• J Arthroplasty. 2018 Aug 1; 33 (8): 2623-2626.

BackgroundChronic obstructive pulmonary disease (COPD) is a major global health issue and a leading cause of morbidity and mortality. Patients with COPD are at increased risk of complications following surgery. The purpose of this study is to evaluate the postoperative total knee arthroplasty (TKA) outcomes in these patients in comparison to a non-COPD matching cohort. Specifically, we asked the following questions: (1) "Is COPD associated with adverse perioperative outcomes?" and (2) "Does COPD increase the risk of short-term complications following TKA?"MethodsThe American College of Surgeons National Surgical Quality Improvement Program database was used to identify 111,168 patients who underwent TKA between 2008 and 2014. A total of 3975 patients with COPD were identified. Both COPD and non-COPD cohorts were compared in terms of the following outcomes: hospital length of stay, discharge disposition, and 30-day postoperative complications.ResultsCOPD was a predictor for a prolonged length of stay and a discharge to an extended care facility (P < .001). They were at significantly increased risk of any complication including increased mortality, pneumonia, reintubation, use of a mechanical ventilator for >48 hours, cardiac arrest, progressive renal insufficiency, deep infection, return to operating room, and a readmission within 30 days postoperatively.ConclusionPatients with COPD are more likely to experience postoperative complications following TKA when compared to non-COPD patients. Pulmonary evaluation and optimization are crucial to minimize adverse events from occurring in this difficult-to-treat population.Copyright © 2018 Elsevier Inc. All rights reserved.

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