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

• Published in: The Journal of arthroplasty Vol. 30; no. 6; pp. 973 - 979
• Main Authors: Bercovy, Michel, MD, Langlois, Jean, MD, Beldame, Julien, MD, Lefebvre, Benjamin, MD
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01-06-2015
• Subjects: Adult; Aged; Aged, 80 and over; Arthroplasty, Replacement, Knee - instrumentation; Arthroplasty, Replacement, Knee - rehabilitation; Arthroplasty, Replacement, Knee - statistics & numerical data; Female; Follow-Up Studies; function; Humans; Knee Joint; Knee Prosthesis - statistics & numerical data; Male; Middle Aged; mobile-bearing; Orthopedics; Prospective Studies; Prosthesis Failure; Range of Motion, Articular; rapid recovery after TKA; Recovery of Function; Reoperation; results; Return to Sport - statistics & numerical data; sports with TKA; total knee arthroplasty; Treatment Outcome; total knee arthroplasty; rapid recovery after TKA; mobile-bearing; results; function; sports with TKA
• ISSN: 0883-5403; 1532-8406
• DOI: 10.1016/j.arth.2015.01.003

Abstract We report midterm results of a prospective continuous cohort of ROCC® 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° (10°–150°) to 127° (90°–155°) 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.