title: Comparison of total hip and knee arthroplasty cohorts and short-term outcomes from a single-center joint registry.
abstract: The purpose of this study was to compare short-term clinical outcomes between total hip arthroplasty (THA) and total knee arthroplasty (TKA) patient cohorts, adjusting for confounding variables including age, sex, body mass index, operative time, length of stay, and preoperative Western Ontario and McMaster Universities and 12-Item Short-Form Health Survey. A total of 349 patients who met inclusion and exclusion criteria created 2 cohorts: THA, 194, and TKA, 155, for statistical analysis via multiple regression and analysis of covariance measures. Outcome measures included Western Ontario and McMaster Universities and 12-Item Short-Form Health Survey data, collected prospectively at baseline and 2 years of follow-up. The current study showed that baseline characteristics of TKA patients have more factors with negative effect on postoperative outcome than THA. However, despite controlling for the possible confounding effect of these variables, THA patients experienced a significantly better functional outcome than TKA patients.
authors.affiliation: Division of Hip and Knee Reconstructive surgery, Center for Hip and Knee Replacement (CHKR), Department of Orthopaedic Surgery, New York-Presbyterian at Columbia University Medical Center, 622 W 168th St, New York, NY 10032, USA.
authors.forename: Jung Keun
authors.initials: JK
authors.lastname: Choi
authors.forename: Jeffery A
authors.initials: JA
authors.lastname: Geller
authors.forename: Richard S
authors.initials: RS
authors.lastname: Yoon
authors.forename: Wenbao
authors.initials: W
authors.lastname: Wang
authors.forename: William
authors.initials: W
authors.lastname: Macaulay
mesh_terms: D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000706:statistics & numerical data*; D019645:Arthroplasty, Replacement, Knee / Q000706:statistics & numerical data*; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D006306:Health Surveys; D006801:Humans; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000601:surgery*; D020370:Osteoarthritis, Knee / Q000601:surgery*; D017063:Outcome Assessment, Health Care; D011446:Prospective Studies; D012042:Registries; D013997:Time Factors; D016896:Treatment Outcome