Total Knee Arthroplasty in Obesity: In-Hospital Outcomes and National Trends

Background Both the prevalence of obesity and the utilization rate of total knee arthroplasty are increasing. The rate and proportion of total knee arthroplasty (TKA) performed in the setting of obesity/morbid obesity is increasing significantly over time. Methods Using International Classification of Diseases—Ninth Revision codes, we searched the National Hospitals Discharge Survey national database for patients admitted for primary TKA between...