title: Cementless fixation in total knee arthroplasty: down the boulevard of broken dreams - opposes.
abstract: In this study we present our experience with   four generations of uncemented total knee arthroplasty (TKA) from Smith   & Nephew: Tricon M, Tricon LS, Tricon II and Profix, focusing   on the failure rates correlating with each design change. Beginning   in 1984, 380 Tricon M, 435 Tricon LS, 305 Tricon 2 and 588 Profix   were implanted by the senior author. The rate of revision for loosening   was 1.1% for the Tricon M, 1.1% for the Tricon LS, 0.5% for the   Tricon 2 with a HA coated tibial component, and 1.3% for the Profix   TKA. No loosening of the femoral component was seen with the Tricon   M, Tricon LS or Tricon 2, with no loosening seen of the tibial component   with the Profix TKA. Regarding revision for wear, the incidence   was 13.1% for the Tricon M, 6.6% for the Tricon LS, 2.3% for the   Tricon 2, and 0% for the Profix. These results demonstrate that   improvements in the design of uncemented components, including increased   polyethylene thickness, improved polyethylene quality, and the introduction   of hydroxyapatite coating, has improved the outcomes of uncemented   TKA over time.
authors.affiliation: Holland Orthopaedic & Arthritic Centre, Sunnybrook Health Sciences Centre, Holland Orthopaedic & Arthritic Centre, 43 Wellesley Street East, Toronto, Ontario M4Y 1H1, Canada. mt.drexler@gmail.com
authors.forename: M
authors.initials: M
authors.lastname: Drexler
authors.forename: T
authors.initials: T
authors.lastname: Dwyer
authors.forename: M
authors.initials: M
authors.lastname: Marmor
authors.forename: M
authors.initials: M
authors.lastname: Abolghasemian
authors.forename: A
authors.initials: A
authors.lastname: Sternheim
authors.forename: H U
authors.initials: HU
authors.lastname: Cameron
mesh_terms: D019645:Arthroplasty, Replacement, Knee / Q000295:instrumentation* / Q000379:methods; D001843:Bone Cements; D005500:Follow-Up Studies; D006801:Humans; D007720:Knee Prosthesis; D017063:Outcome Assessment, Health Care; D011474:Prosthesis Design; D011475:Prosthesis Failure / Q000209:etiology / Q000639:trends; D012086:Reoperation / Q000706:statistics & numerical data
chemical_list: D001843:Bone Cements