title: Bariatric Surgery Prior to Total Knee Arthroplasty is Associated With Fewer Postoperative Complications.
abstract: This study used a national database to compare 90-day postoperative complication rates between three groups of patients who underwent total knee arthroplasty (TKA): (1) non-obese patients (n=66,523), (2) morbidly obese patients who did not have bariatric surgery (n=11,294) and (3) morbidly obese patients who underwent bariatric surgery prior to TKA (n=219). Morbidly obese patients who underwent bariatric surgery prior to TKA had reduced rates of major (OR 0.45, P=0.001) and minor (OR 0.61, P=0.01) complications compared to morbidly obese patients who did not have bariatric surgery. Bariatric surgery prior to TKA appears to be associated with less risk of postoperative complications, although not to the same level as non-obese patients.
authors.affiliation: Department of Orthopaedic Surgery, University of Virginia Health System, Charlottesville, Virginia.
authors.forename: Brian C
authors.initials: BC
authors.lastname: Werner
authors.affiliation: Department of Orthopaedic Surgery, University of Virginia Health System, Charlottesville, Virginia.
authors.forename: Gregory M
authors.initials: GM
authors.lastname: Kurkis
authors.affiliation: Department of Orthopaedic Surgery, University of Virginia Health System, Charlottesville, Virginia.
authors.forename: F Winston
authors.initials: FW
authors.lastname: Gwathmey
authors.affiliation: Department of Orthopaedic Surgery, University of Virginia Health System, Charlottesville, Virginia.
authors.forename: James A
authors.initials: JA
authors.lastname: Browne
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects*; D050110:Bariatric Surgery / Q000009:adverse effects*; D016208:Databases, Factual; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009767:Obesity, Morbid / Q000150:complications* / Q000601:surgery; D010003:Osteoarthritis / Q000150:complications / Q000601:surgery; D011183:Postoperative Complications / Q000209:etiology*; D014481:United States; D020246:Venous Thrombosis / Q000453:epidemiology
keywords: DVT; bariatric surgery; infection; postoperative complications; total knee arthroplasty