title: Ten-year results comparing posterior cruciate-retaining versus posterior cruciate-substituting total knee arthroplasty.
abstract: We compared the 10-year survival rates and clinical outcomes of posterior cruciate-retaining (CR) versus posterior cruciate-substituting (CS) total knee arthroplasty (TKA), using the Genesis II knee system (Smith and Nephew, Memphis, TN). Our institutional database identified patients undergoing a primary knee with the Genesis II system between 1995 and 2000. These patients were followed for an average of 12.3years (range 10.2-14.4years). There were 143 (34.5%) CR and 271 (65.5%) CS implants. No significant difference in 10-year survivorship was noted between the two cohorts. The postoperative clinical scores (KSCRS, WOMAC, SF-12) and knee ROM were significantly better for the CS cohort. In this large, long-term, single-implant prospective study, CS performed better than CR in terms of clinical scores and range of motion.
authors.affiliation: Division of Orthopaedic Surgery, London Health Science Centre, University Campus, London, Ontario, Canada; University Hospital, University of Western Ontario, London, Ontario, Canada.
authors.forename: Takashi
authors.initials: T
authors.lastname: Sando
authors.affiliation: Division of Orthopaedic Surgery, London Health Science Centre, University Campus, London, Ontario, Canada; University Hospital, University of Western Ontario, London, Ontario, Canada.
authors.forename: Richard W
authors.initials: RW
authors.lastname: McCalden
authors.affiliation: Division of Orthopaedic Surgery, London Health Science Centre, University Campus, London, Ontario, Canada; University Hospital, University of Western Ontario, London, Ontario, Canada.
authors.forename: Robert B
authors.initials: RB
authors.lastname: Bourne
authors.affiliation: Division of Orthopaedic Surgery, London Health Science Centre, University Campus, London, Ontario, Canada; University Hospital, University of Western Ontario, London, Ontario, Canada.
authors.forename: Steven J
authors.initials: SJ
authors.lastname: MacDonald
authors.affiliation: Division of Orthopaedic Surgery, London Health Science Centre, University Campus, London, Ontario, Canada; University Hospital, University of Western Ontario, London, Ontario, Canada.
authors.forename: Lyndsay E
authors.initials: LE
authors.lastname: Somerville
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D016208:Databases, Factual; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007719:Knee Joint / Q000601:surgery*; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D016119:Posterior Cruciate Ligament / Q000601:surgery*; D011446:Prospective Studies; D016059:Range of Motion, Articular; D012086:Reoperation
keywords: clinical outcomes; posterior cruciate retaining; posterior cruciate substituting; survival; total knee arthroplasty