Lésions isolées du ménisque latéral sur genou stable opérées : étude fonctionnelle à 10 ans de suivi

Meniscals lesions are frequent during sport practice. Although lateral meniscus is affected in only 25% of all meniscus lesions, lateral lesions are usually known to have a poor clinical outcome. Our monocentric study consisted in a systematic evaluation of all patients treated in our unit for a unique lesion of the lateral meniscus in an otherwise normal knee. Follow-up was at least of ten years. Functional results were rated with four cotations currently used in traumatologic practice. A statistic analysis was made to identify predictive factors of poor outcome. Thirty-nine patients have been included. Functional evaluation showed 12% of excellent, 41% of good, 35% of medium and 12% of bad results with Arpege score, 65% of good and very good and 35% of medium results with Lysholm score. The average subjective IKDC score was 58 ± 15, objective IKDC cotation found 0% of A, 88% of B and 12% of C. The average Koos score was 83.7 ± 17. Better evolution was found for patients with horizontal lesions (P = 0.04) or patients with central segment injury (P = 0.05). Similar data concerning the poor functional outcome of lateral meniscus tears has been published. Only two thirds of patients have good or excellent results after 10 years.