结论MPCNL治疗输尿管上段嵌顿性结石疗效确切，具有诸多的优点，值得推广应用。

Conclusion MPCNL used to treat the impacted proximal urethral calculi have satisfied effects and a lot of merits.

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结论MPCNL治疗输尿管上段嵌顿结石疗效更佳，结石清除率高。

MPCNL was more effective in treating impacted upper ureteral calculi and had higher stone-free rate.

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