title: Total knee arthroplasty with an uncemented trabecular metal tibial component: a registry-based analysis.
abstract: Previous poor results have kept the appeal of uncemented total knee arthroplasties (TKAs) minimal. We analyzed the mid-term survivorship and reasons for failures of a contemporary uncemented porous tantalum monoblock tibial component nation-wide. During the study period (2003-2010), such tibial components were used in 1143 primary TKAs recorded in the Finnish Arthroplasty Registry. Seven-year survivorship of these TKAs was 100% (95% CI 99-100) with revision for aseptic loosening of the tibial component, and 97% (95% CI 96-98) with revision for any reason as the respective end points. The most common reasons for revisions were instability and prosthetic joint infections. In conclusion, TKAs using an uncemented porous tantalum monoblock tibial component showed excellent mid-term survivorship in a population-based setting.
authors.affiliation: COXA Hospital for Joint Replacement, 33101 Tampere, Finland.
authors.forename: Mika
authors.initials: M
authors.lastname: Niemeläinen
authors.forename: Eerik T
authors.initials: ET
authors.lastname: Skyttä
authors.forename: Ville
authors.initials: V
authors.lastname: Remes
authors.forename: Keijo
authors.initials: K
authors.lastname: Mäkelä
authors.forename: Antti
authors.initials: A
authors.lastname: Eskelinen
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee; D001672:Biocompatible Materials; D002484:Cementation; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000601:surgery*; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D012042:Registries; D013635:Tantalum; D013977:Tibia / Q000601:surgery; D016896:Treatment Outcome
chemical_list: D001672:Biocompatible Materials; D013635:Tantalum
keywords: porous tantalum tibial component; total knee arthroplasty; trabecular metal; uncemented