Result: Cellular proliferation and ground substance were secreted of the superficial layer articular cartilage by passive movements, and the new fillers were close to the normal articular cartilages.

• 结果：被动运动最能使浅层部分损伤软骨内的软骨细胞增生及基质分泌，使受损软骨表面的新生填充物接近于正常的软骨结构。