Functional Results of the ROCC (R) Mobile Bearing Knee. 602 Cases at Midterm Follow-Up (5 to 14 Years)

摘要

We report midterm results of a prospective continuous cohort of ROCC (R) Total Knee Arthroplasties (TKA). Between 2001 and 2008, all primary TKA patients (n= 500) received 602 ROCC saddle-shaped rotating platform TKAs. Mean follow-up was 7.5 years (5-13) (> 10 years in 123 knees). 82 patients (93 knees) died; 20 patients (21 knees) were lost to follow-up. Active flexion improved from 119 degrees (10 degrees-150 degrees) to 127 degrees (90 degrees-155 degrees) and Knee Society knee score from 39 +/- 11 to 94 +/- 9. Two knees were reoperated for aseptic loosening: Kaplan-Meier 14-year survivorship with aseptic loosening as end-point was 99.4% (95% CI, 99.8-100). UCLA mean score increased from 3.8/10 at baseline to 7.3/10 at last FU, 91% recovering pre-disease activity, and 27% with UCLA score >= 8/10. ROCC TKA demonstrated solid midterm survivorship without activity-related complications. Level of Evidence: Therapeutic, Level IV. (C) 2015 The Authors. Published by Elsevier Inc.This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).