O1114 TOTAL KNEE ARTHROPLASTY IN OSTEOARTHRITIS: A LONG-TERM RESULTS OF 943 KNEES

Abstract

Aim of this study is to evaluate the long-term results of the posterior cruciate retaining knee arthroplasty in osteoarthritis patients. Material and Methods: 943 consecutive total knee replacements in patients with osteoarthritis were performed. All knees had cemented components with retention of the posterior cruciate ligament followed in prospective fashion. Assessment was done by Knee Society clinical and radiographic evaluation systems. Survivorship analysis was done using the Kaplan-Meier method. Results: The average follow-up was 10.8 years. All living patients had a minimum of 10 years (10–24) follow up. The average age at surgery was 71 years. Revision was carried out in 20 knees in OA (2.1%). 87% were pain free and 91% were rated excellent as per the Knee Score. The survivorship analysis showed the implant survival at 15 years 96%, 20 years was 88% and 24 years was 82 (63 to 92%). The age at surgery, gender and design of prosthesis were not significant for survivorship analysis. Conclusions: Total knee arthroplasty provides an excellent survivorship analysis and clinical results at 24 years and seems to have better results than published hip studies.