国家自然科学基金81460340;云南省骨关节疾病诊疗省创新团队项目2004HC1018;医疗卫生内设机构研究项目 the National Natural Science Foundation of China,No.81460340;the Innovative Team Project for Diagnosis and Treatment of Joint Diseases in Yunnan Province,No.2004HC1018;Research Projects of Medical Institutions