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MINIMUM 15 YEAR FOLLOW-UP OF TOTAL KNEE ARTHROPLASTY (PFC) WITH RETENTION OF THE PCL

7th Congress of the European Federation of National Associations of Orthopaedics and Traumatology, Lisbon - 4-7 June, 2005



Abstract

A consecutive series of 139 total knee arthroplasties (109 patients, average age 67 years), using a non-conforming posterior cruciate-retaining prosthesis was followed for 15 years (range, 15.0 to 16.9 years).

Forty-five patients (59 knees) were clinically and radiographically evaluated, 57 (70 knees) had died, five patients (8 knees) were too ill to assess, two patients (2 knees) were considered lost to follow-up. Survivorship analysis was performed using worst case scenario analysis and failure defined as re-operation for any reason.

Results: In this series there were five re-operations for any indication, four of which were for polyethylene insert wear. One loose cemented femoral component was revised at 15 years. The survival without revision or need for any re-operation was 92.6% at 15 years. The mean Knee Society Score and Function Score at 15 year follow-up are 96 and 78 respectively. The prevalence of radiolucent lines was 13%. None of these lines were clinically relevant. There was no evidence of progressive radiolucent lines, and one case of asymptomatic femoral osteolysis.

Conclusions: This single-surgeon series with a minimum 15 year follow-up shows good clinical and radiological results with excellent survivorship of a modular fixed bearing posterior cruciate retaining total knee arthroplasty system.

Theses abstracts were prepared by Professor Roger Lemaire. Correspondence should be addressed to EFORT Central Office, Freihofstrasse 22, CH-8700 Küsnacht, Switzerland.