Ultimately, rheumatoid arthritis can become worse over time and result in the limited ability to carry out routine activities since deformed joints result.

随着时间的过去，风湿性关节炎会越来越糟糕，最终因为关节变形会导致日常活动能力下降。

youdao

A life of drudgery, of deformed spines, of chronic arthritis, of severed hands.

生活只是苦力、脊柱变形、慢性关节炎和残断的双手。

youdao

Some autoimmune forms of arthritis, if not treated, may cause joints to become deformed.

VOA: special.2010.05.19