title: Meta-analysis and systematic review of clinical outcomes comparing mobile bearing and fixed bearing total knee arthroplasty.
abstract: Mobile bearing (MB) knee replacements were designed with the goal of increased conformity and decreased bearing wear. We conducted a meta-analysis and systematic review of randomized controlled trials comparing outcomes of MB and fixed bearing (FB) total knee arthroplasty (TKA). We identified 14 studies reporting our primary outcome of Knee Society Scores (KSS). We also pooled data for post-operative range of motion (ROM) and Hospital for Special Surgery scores (HSS). The standard difference in mean outcome scores for KSS and HSS demonstrated no difference between groups (P = .902, and P = .426 respectively). Similarly, the pooled data for ROM showed no difference between groups (P = .265). The results of this study found no significant differences between clinical outcomes of MB and FB TKA.
authors.affiliation: Division of Orthopaedic Surgery, Department of Surgery, University Health Network, University of Toronto, Toronto, Ontario, Canada.
authors.forename: Holly
authors.initials: H
authors.lastname: Smith
authors.forename: Meryam
authors.initials: M
authors.lastname: Jan
authors.forename: Nizar N
authors.initials: NN
authors.lastname: Mahomed
authors.forename: J Rod
authors.initials: JR
authors.lastname: Davey
authors.forename: Rajiv
authors.initials: R
authors.lastname: Gandhi
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000295:instrumentation*; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000502:physiology* / Q000601:surgery; D007720:Knee Prosthesis / Q000145:classification*; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D016032:Randomized Controlled Trials as Topic; D016059:Range of Motion, Articular / Q000502:physiology*; D016896:Treatment Outcome