title: Ten Year Follow-Up of Gap Balanced, Rotating Platform Total Knee Arthroplasty in Patients Under 60 Years of Age.
abstract: 68 patients (91 primary total knee arthroplasties) were evaluated at a mean 10-year, minimum 5 year follow up in patients younger than sixty years of age utilizing the gap balanced, rotating platform design. Follow up assessment included implant survivorship, adverse events, x-rays, Knee Society rating system and clinical evaluation. Three revisions were performed with only one for aseptic loosening at 45 months. Two manipulations were performed in the early postoperative period. Survivorship of the rotating platform, gap balanced knee was 96.7% using surgical revision for any reason and 98.9% using aseptic loosening as endpoints. The rotating platform design using the gap balancing technique in young patients had excellent survivorship at 10-year mean follow up.
authors: Southern California Permanente Medical Group, Panorama City Medical Center, California.
authors: Jason H
authors: JH
authors: Lee
authors: Hoag Orthopaedic Institute, Irvine, California.
authors: Steven L
authors: SL
authors: Barnett
authors: Hoag Orthopaedic Institute, Irvine, California.
authors: Jay J
authors: JJ
authors: Patel
authors: Hoag Orthopaedic Institute, Irvine, California.
authors: Nader A
authors: NA
authors: Nassif
authors: Hoag Orthopaedic Institute, Irvine, California.
authors: Dennis J
authors: DJ
authors: Cummings
authors: Hoag Orthopaedic Institute, Irvine, California.
authors: Robert S
authors: RS
authors: Gorab
mesh_terms: D000328:Adult; D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D053208:Kaplan-Meier Estimate; D007719:Knee Joint / Q000601:surgery; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000601:surgery; D011446:Prospective Studies; D011475:Prosthesis Failure; D012086:Reoperation / Q000295:instrumentation; D012720:Severity of Illness Index; D016896:Treatment Outcome; D014965:X-Rays
keywords: gap balancing; instability; outcomes; rotating platform; total knee arthroplasty