Implant survivorship and complication rates after total knee arthroplasty with a third-generation cemented system: 5 to 8 years followup.
We evaluated implant survivorship, reoperation rates, and complication rates of a group of patients who had total knee arthroplasty with a third-generation cemented prosthetic device using cruciate-retaining and posterior-stabilized designs at 5 to 8 years followup. Three hundred thirty-four consecutive primary total knee arthroplasties (186 cruciate retaining and 148 posterior stabilized) were done in 287 patients at our institution during a 2-year period. Kaplan Meier survivorship using revision for any reason and revision for aseptic loosening as endpoints were 95.9% and 99.5% respectively at 8 years. Nine patients (four with cruciate-retaining total knee arthroplasties, five with posterior-stabilized total knee arthroplasties; 3.1%) had reoperations for any reason. No patients had reoperation for problems related to the patellofemoral joint. Thirty-two patients (11.1%) had intraoperative or postoperative complications. There were no differences in any of the outcomes analyzed between patients who had cruciate-retaining or posterior-stabilized total knee replacements. Our results show that with appropriate patient selection and meticulous attention to surgical technique, excellent clinical and radiographic results can be achieved with a third-generation total knee arthroplasty system at intermediate followup.


METHODS
Therapeutic study, Level III-2 (retrospective cohort study).
Bozic
Kevin J
KJ
Department of Orthopaedic Surgery, University of California San Francisco, San Francisco, CA 94143-0728, USA. bozick@orthosurg.ucsf.edu
Kinder
Jeremy
J
Meneghini
R Michael
RM
Menegini
Michael
M
Zurakowski
David
D
Rosenberg
Aaron G
AG
Galante
Jorge O
JO
D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects / Q000295:instrumentation* / Q000706:statistics & numerical data*; D001843:Bone Cements; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007720:Knee Prosthesis / Q000706:statistics & numerical data*; D008297:Male; D010014:Osteolysis / Q000209:etiology; D010043:Outcome and Process Assessment, Health Care; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012086:Reoperation / Q000706:statistics & numerical data; D016019:Survival Analysis
D001843:Bone Cements