患者,男,15岁。患者于入院前5ａ起无明显诱因出现双下肢乏力,易疲劳,以后逐渐出现双侧膝内翻(“Ｏ”形腿),走路摇晃,于当地医院诊断为“佝偻病”,予以维生素Ｄ及补钙治疗,未见明显疗效。2ａ前行双侧膝内翻手术矫正治疗。8个月前患者骑自行车摔倒后左股骨下段骨折,手术复位、固 Patient, male, 15 years old. There was no obvious incentive for the patients to have lower extremity fatigue and fatigue in the first 5 days after admission, bilateral knee varus (“O” leg) appeared gradually and then walked shakily. The patients were diagnosed as “rickets” in local hospitals and treated with vitamin D and supplement Calcium treatment, no significant effect. 2a before bilateral varus surgery correction. 8 months ago, the patient fell off the bike left femur fracture, surgical reduction, solid