2015 ISAKOS Biennial Congress ePoster #1415

Unicompartmental Knee Arthroplasty. The French Experience

Jean Louis Prudhon, MD, grenoble FRANCE
Sebastien Lustig, MD, PhD, Prof., Lyon, Rhône Alpes FRANCE
Jean Noel Argenson, MD, Marseille FRANCE
Jean Alain Epinette, Bruay, Labuissiere FRANCE
Francois Lecuire, Hyeres FRANCE

Clinique des Cedres, Echirolles, FRANCE

FDA Status Not Applicable

Summary: French experience of using different types of unicompartmental knee prostheses:

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Abstract:

Introduction

In knee arthroplasty, the choice of the most appropriate implant is based on its expected lifetime and morbidity associated with the surgical technique. Unicompartmental knee arthroplasty yields less morbidity than other knee prostheses. The objective of this work is to present the French experience of using different types of unicompartmental knee prostheses: mobile bearing, fixed bearing, cementless, cemented with or without metal-back.

Method

Case series were searched in those presented at the “Deuxièmes Rencontres d’Echanges en Chirurgie Orthopédique” (RECO) in 2008, or by questioning surgeons using prostheses not presented at the 2sd RECO but implanted in France. Among the identified series, 7 were selected because outcome criteria of interest were available. Then, data were extracted and summarized before evaluation.

Results

patient’s characteristics were similar in term of age, sex-ratio, body mass index and indications. Survival probability ranged from 85.7% to 96.4% at 10 years of follow-up. Functional scores were significantly improved at the last follow-up. Implants with fixed bearing tended to have a slightly better survival probability than implants with mobile bearing. Regarding implants with fixed bearing, the different options cementless, cemented with or without metal-back yielded similar results.

Conclusion

Unicompartmental knee arthroplasty is a reliable implant. The good and long term clinical results are an answer to critics. Its indications and surgical technique answer to strict criteria that are to be respected.