In 53 patients with a mean age of 38 (17-73) years, 71 high tibial osteotomies were performed. Twenty-three patients had no radiological signs of osteoarthrosis (Ahlbäck grade 0), whereas 26 patients had primary and 22 patients secondary osteoarthritis. Follow-up was 10.5 (5.8-16.6) years. The patients without radiological osteoarthrosis achieved almost exclusively good or very good scores using the Lysholm-Gillquist (96%) and the Insall scale (83%). By contrast, only 29% of the patients with radiological osteoarthritis achieved good or very good scores. Whether the patient had primary or secondary osteoarthrosis was of no influence. Neither was the preoperative axial deviation.Résumé Chez 53 patients, d'âge moyen 38 (17-73) ans, 71 ostéotomies hautes du tibia ont été éffectuées. Vingttrois malades n'avaient pas de signes radiologiques d'arthrose (Ahlbäck grade 0), alors que 26 malades avaient une arthrose primaire et 22 une arthrose secondaire. Le suivi était de 10.5 (5.8-16.6) années. Les malades sans arthrose radiologique ont atteints presque exclusivement des bons ou très bons scores selon les échelles de Lysholm-Gillquist (96%) et d' Insall (83%). Par contraste, seulement 29% des malades avec arthrose radiologique ont atteints de bons ou très bons scores. Le caractère primaire ou secondaire de l'arthrose et la déviation axiale préopératoire n'avaient aucune influence.
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