Objective To analyze the atlantoaxial joint and the changes of its near bone and sofftissue in 40 cases with rheumatoid arthritis and to offer the significant information for clinical treatment.

• 摘要目的分析40例确诊为类风湿关节炎的寰枢关节及其附近骨质软组织改变，为临床治疗提供重要资料。