title: Cementation of tibial inserts into nonmatching base plates in revision total knee arthroplasty.
abstract: We describe the use of a novel technique for adapting nonmatching tibial inserts into tibial trays in revision total knee arthroplasty. From 1998 to 2003, the senior author performed 7 revision total knee arthroplasty procedures, during which a nonmatching tibial insert was cemented into a tibial tray to retain a well-fixed but incompatible opposite component. Bench tests were undertaken to confirm the stability of cement as a locking mechanism substitute. Three components completed 1 000 000 cycles of loading under simulated physiologic stresses with no evidence of fixation failure. There have been no clinical failures at 18 to 69 months in vivo follow-up (mean, 49 months). This technique provided durable fixation while avoiding host bone damage that might have occurred needlessly had the well-fixed implant been extracted.
  
  
  METHODS
  level IV therapeutic study, case series.
authors.affiliation: Athens Orthopedic Clinic, P.A., Athens, Georgia 30606, USA.
authors.forename: Ormonde M
authors.initials: OM
authors.lastname: Mahoney
authors.forename: Tracy L
authors.initials: TL
authors.lastname: Kinsey
authors.forename: Safia
authors.initials: S
authors.lastname: Bhimji
authors.forename: Joseph L
authors.initials: JL
authors.lastname: Racanelli
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D002484:Cementation; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D012086:Reoperation; D012189:Retrospective Studies; D013977:Tibia / Q000601:surgery*