Results: In all objects, 26, 52 weeks KOOS each items and Lysholm were higher significantly than previous that without 26 weeks sports item of KOOS. Complication after JACC was 4 Hypertrophys, 1 separation and 1 contracture which was underwent immobilization at 3 months after JACC. Post-operative KOOS under 30 years was significantly higher than that over 30 years without symptom items. There was no significant difference between with HTO and without HTO. But, Amount of KOOS changes from preoperative to postoperative with HTO was significant higher than that without HTO.