患者 ,男 ,79岁。腰及臀部疼痛不适年余 ,端坐痛甚月余 ,手足麻木、驼背、行走困难 10余年。经抗炎、止痛治疗效果不著就诊。查体 :残存左侧门齿和犬齿呈棕黄色 ,伴有褐色斑点。脊柱弯曲 ,脊柱及下肢关节活动困难、疼痛 ,实验室检查正常 ,患者居住地为高氟区。腰椎正侧位及骨盆 Patient, male, 79 years old. Waist and hip pain discomfort in more than a year, sitting pain more than a month, numb hands and feet, hump, walking more than 10 years. The anti-inflammatory, analgesic effect of treatment. Physical examination: residual left incisors and fangs was brown, accompanied by brown spots. Spinal curvature, spine and lower extremity joint activity difficulties, pain, laboratory tests were normal, the patient’s place of residence for the high fluoride area. Lumbar lateral and pelvis