在肺显像时，50%抗体呈阳性者和53%抗体呈阴性者表示至少有一处关节有疼痛、僵硬和肿胀。
Pain, stiffness or swelling were reported in at least one joint by 50% of antibody-positive and 53% of antibody-negative subjects at the time of imaging.
主要结果的评估：采用足和踝关节结果问卷评估踝关节术后疼痛、功能、僵硬和肿胀以及解决办法（？）
Main Outcome Measurements: The Foot and Ankle Outcomes Questionnaire was used to evaluate postoperative ankle pain, function, stiffness and swelling, and giving way.
如果你患有风湿性关节炎(RA)，你的关节会变得僵硬、疼痛和肿胀。
If you have rheumatoid arthritis (RA), your joints become stiff, painful, and swollen.
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