结果：在关节置换组，仅使用当代的双极假体，采用羟基磷灰石涂层现代柄非骨水泥假体占20.8%(522人)。

Results in the arthroplasty group, only contemporary bipolar prostheses were used and uncemented prostheses with modern stems and hydroxyapatite coating accounted for 20.8% (522) of the implants.

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血清骨钙素(BGP)水平极显著下降。

The level of serum BGP reduced significantly.

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血清骨钙素(BGP)水平极显著下降。

The level of serum BGP reduced significantly.

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