title: The Natural-Knee system: 25 years of successful results.
abstract: The Natural-Knee (NK) total knee arthroplasty (TKA) system has been in use for 25 years. The unique features of this system include a deep trochlear groove, an asymmetrical tibial baseplate, use of Cancellous-Structured Titanium coating for preferred bone ingrowth, and a bimetal cementless femoral component. So far, 3135 NK total knee replacements have been reviewed. Cementless femoral and tibial components were used in 22% of these cases, cementless femoral and cemented tibial components in 3%, and cemented femoral and tibial components in 75%. The revision rate was 1.6%. Only one revision was to correct uncomplicated aseptic loosening.
authors.affiliation: Florida Orthopaedic Institute, Temple Terrace, FL 33767, USA.
authors.forename: Kenneth A
authors.initials: KA
authors.lastname: Gustke
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000295:instrumentation*; D001843:Bone Cements; D002484:Cementation; D005260:Female; D006304:Health Status; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging / Q000601:surgery*; D007720:Knee Prosthesis; D008297:Male; D016348:Osseointegration; D020370:Osteoarthritis, Knee / Q000503:physiopathology / Q000601:surgery*; D011474:Prosthesis Design; D011475:Prosthesis Failure; D011859:Radiography; D012086:Reoperation; D012720:Severity of Illness Index; D013499:Surface Properties; D014025:Titanium; D016896:Treatment Outcome; D016474:Weight-Bearing
chemical_list: D001843:Bone Cements; D014025:Titanium