The procedure, which preserves more thigh bone than in a conventional hip replacement, is aimed at younger, more active patients who may need several hip replacements in their lifetimes.

目前这种手术的对象主要是年纪较青、活动量大的患者，这些患者在他们有生之年中或许需要进行几次髋关节置换手术。

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When you stray from your lane, you feel a gentle vibration in your thigh that signals, in an oh-so-private way, that you need to pay better attention and stay between the lines.

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