title: All-polyethylene tibial implant in young, active patients a concise follow-up, 10 to 18 years.
abstract: This is a long-term follow-up report of all-polyethylene tibial components in 60 years and younger, active patients. At the mean follow-up of 12.4 ± 2.7 (range, 10-18 years), no more patients were deceased or lost to follow-up, leaving 32 patients (44 knees) for final analysis. Good to excellent results were achieved in 96% of patients. The mean Western Ontario and McMaster Universities Osteoarthritis Index and Knee Society Score were 31 and 97, respectively. Sixty-two percent of patients were participating in sport activities such as running, gym exercises, and playing tennis or golf, with a mean UCLA score of 7.2. There were no cases of malalignment, aseptic loosening, excessive wear, or osteolysis. Seven patients (9 knees) had incomplete, nonprogressive demarcation at the zone 1 tibial interface. Kaplan-Meier survivorship at 10 years for revision due to mechanical reasons and for all failures was 97.7% and 95.5%, respectively.
authors.affiliation: Hospital for Special Surgery, New York, New York, USA.
authors.forename: Morteza
authors.initials: M
authors.lastname: Meftah
authors.forename: Amar S
authors.initials: AS
authors.lastname: Ranawat
authors.forename: Arjun B
authors.initials: AB
authors.lastname: Sood
authors.forename: Jose A
authors.initials: JA
authors.lastname: Rodriguez
authors.forename: Chitranjan S
authors.initials: CS
authors.lastname: Ranawat
mesh_terms: D000367:Age Factors; D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D020959:Polyethylene; D011474:Prosthesis Design; D011795:Surveys and Questionnaires; D013977:Tibia / Q000601:surgery*; D013997:Time Factors
chemical_list: D020959:Polyethylene