Deformities may be caused by overgrowth of an osteochondroma or hyperplasia of articular cartilage and sometimes can occur secondary to changes induced by limitation of motion.

畸形可能是由骨软骨瘤过度生长或关节软骨增生引起，而且有时可继发于活动受限。

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First, because intraarticular osteochondromas of the finger grow in continuity with the articular cartilage of the affected phalanx, they can cause deformity or limitation of motion.

首先，由于指关节内骨软骨瘤与受累指骨的关节软骨一起持续生长，所以它们可以引起畸形或者活动受限。

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Rheumatoid arthritis is a chronic disease that causes pain, stiffness, swelling, and limitation in the motion and function of multiple joints.

类风湿性关节炎是一种慢性疾病，造成多关节的疼痛、僵硬、肿胀与运动和功能受限。

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