关节软骨面退行性病变 retrograde degeneration of articular cartilage surface
对因外伤和软骨病变所导致的关节软骨退变或功能丧失的治疗，目前临床上尚无有效的方法。
There has been no satisfactorily effective method for the clinical treatment of articular cartilage degradation and functional incapacitation due to traumas and cartilage lesions up till now.
方法：从1999到2002年随访了19位接受新鲜骨软骨同种异体骨治疗有症状的膝关节软骨和骨软骨病变的病人，手术时的平均年龄为34岁。
Methods: Nineteen patients with symptomatic chondral and osteochondral lesions of the knee who were treated with fresh osteochondral allografts between 1999 and 2002 were prospectively followed.
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