The so-called chronic arthrosis( CA) usually means a series of joint arthr opathies, which include osteoarthr osis, rheumotoid arthrosis , traumatic arthrosis et a l.

• 慢性关节炎多指骨关节炎、风湿性关节炎、伤性关节炎和股骨头坏死引起的关节病变。