title: Bariatric surgery prior to total joint arthroplasty may not provide dramatic improvements in post-arthroplasty surgical outcomes.
abstract: This study compared the total joint arthroplasty (TJA) surgical outcomes of patients who had bariatric surgery prior to TJA to TJA patients who were candidates but did not have bariatric surgery. Patients were retrospectively grouped into: Group 1 (n = 69), those with bariatric surgery >2 years prior to TJA, Group 2 (n = 102), those with surgery within 2 years of TJA, and Group 3 (n = 11,032), those without bariatric surgery. In Group 1, 2.9% (95% CI 0.0-6.9%) had complications within 1 year compared to 5.9% (95% CI 1.3%-10.4%) in Group 2, and 4.1% (95% CI 3.8%-4.5%) in Group 3. Ninety-day readmission (7.2%, 95% CI 1.1%-13.4%) and revision density (3.4/100 years of observation) was highest in Group 1. Bariatric surgery prior to TJA may not provide dramatic improvements in post-operative TJA surgical outcomes.
authors.affiliation: Surgical Outcomes and Analysis Department, Kaiser Permanente, San Diego, California.
authors.forename: Maria C S
authors.initials: MC
authors.lastname: Inacio
authors.affiliation: Surgical Outcomes and Analysis Department, Kaiser Permanente, San Diego, California.
authors.forename: Elizabeth W
authors.initials: EW
authors.lastname: Paxton
authors.affiliation: Department of Surgery, Kaiser Permanente, Richmond, California.
authors.forename: David
authors.initials: D
authors.lastname: Fisher
authors.affiliation: Department of Bariatric Surgery, Kaiser Permanente, South San Francisco, California.
authors.forename: Robert A
authors.initials: RA
authors.lastname: Li
authors.affiliation: Department of Orthopedic Surgery, Kaiser Permanente, Oakland, California.
authors.forename: Thomas C
authors.initials: TC
authors.lastname: Barber
authors.affiliation: Departments of Medicine and Epidemiology, University of Alabama at Birmingham, Birmingham, Alabama; Birmingham Veterans Affairs Medical Center, Alabama.
authors.forename: Jasvinder A
authors.initials: JA
authors.lastname: Singh
mesh_terms: D000368:Aged; D019644:Arthroplasty, Replacement, Hip; D019645:Arthroplasty, Replacement, Knee; D050110:Bariatric Surgery; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000150:complications / Q000601:surgery*; D010003:Osteoarthritis / Q000150:complications / Q000601:surgery*; D011184:Postoperative Period; D012189:Retrospective Studies; D013530:Surgical Wound Infection
keywords: bariatric surgery; complications; joint arthroplasty; obesity; revision; surgical site infection