目的：探讨S．T．O．N．E．肾结石评分系统用于经皮肾镜取石术（PCNL）的临床意义。方法回顾性研究87例行PCNL的肾结石患者的一般情况、术前情况、结石特征、手术情况及围手术期情况等，应用S ．T ．O ． N．E．肾结石评分系统对患者术前的肾结石进行评分，分析S．T．O．N．E．评分与结石清除率、术后并发症等的关系。结果结石清除组的术前体质量指数及 S．T．O．N．E．评分均明显低于残留组，差别均有统计学意义（P＜0．05）。2组间结石最大截面积、皮肾通道距离、梗阻程度及受累肾盏数的评分差别均有统计学意义（P＜0．05）。S．T．O．N．E．评分、结石最大截面积、皮肾通道距离、梗阻程度及受累肾盏数与结石清除状态相关（P＜0．05），而结石Ct值与结石清除状态无相关性（P＞0．05）。结论 S．T．O．N．E．肾结石评分系统有助于预测PCNL的术后的结石清除状态。%Objective To investigate the clinical significance of S .T .O .N .E .nephrolithometry scoring system for nephrolithiasis in patients undergoing percutaneous nephrolithotomy (PCNL ) . Meth-ods A retrospective analysis was conducted of clinical data of 87 patients with nephrolithiasis undergoing PCNL from March 2013 to 2014 in our Department . The general conditions ,preoperative information , stone characteristics ,operation approaches and perioperative variables were collected . The correlation of nephrolithometry scores based on S .T .O .N .E .scoring system with stone-free status and postoperative complications were analyzed . Results In those patients with stone-free ,the S .T .O .N .E .score and bodymass index was significantly lower than that in those patients with residual stones ( P< 0 .05) . There was significant difference between the patients with stone-free and thel group with residual stones . The S .T .O .N .E .score ,stone size ,tract length ,obstruction and number of calices containing stones showed significant correlationship with the postoperative stone-free status ( P<0 .05) . But ,it did not correlate with the stone essence (P>0 .05) . Conclusions The S .T .O .N .E .nephrolithometry scoring system can predict postoperative stone-free status of PCNL .
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