Successful biologic fixation with mobile-bearing total knee arthroplasty.
A popular rotating-platform total knee implanted with a cementless technique was studied to determine long-term durability of fixation. A total of 70 knees in 59 patients (34 men, 25 women) was included. The primary indication for surgery was osteoarthritis (80%). A total of 23 of the 70 knees was available at final follow-up (average, 16 years). Clinical and radiographic data suggested durable fixation. In addition, the entire cohort of patients was studied with Kaplan-Meier statistics. Survivorship with respect to aseptic loosening was 97% at 17 years. Only 1 of the 70 knees was revised for aseptic loosening. However, overall survivorship was 76%, which was primarily because of failures of the metal-backed rotating patella.
Tarkin
Ivan S
IS
Department of Orthopedic Surgery, University of Nebraska Medical Center, Omaha, NE 68198-1080, USA.
Bridgeman
Jay T
JT
Jardon
O Max
OM
Garvin
Kevin L
KL
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000601:surgery; D010329:Patella; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012086:Reoperation