Objective: To study the effect of continuous passive motion(CPM) after total knee replacement(TKR).
目的评价全膝关节置换术后持续被动运动（CPM）的临床应用价值。
Unique quick return and continuous running greatly improved the productivity effect.
独特的快速返回和连续运转使生产效率大大提高。
Unique quick return and continuous running greatly improved the productivity effect.
独特的快速返回和连续运转使生产效率大大提高。
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