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目的:探讨S.T.O.N.E.肾结石评分系统预测经皮肾镜取石术(PCNL)结石清除率及手术并发症的临床应用价值.方法:回顾性分析1 791例行PCNL的肾结石患者的临床资料,根据S.T.O.N.E.肾结石评分对患者术前的结石特征进行评分,分析S.T.O.N.E.评分与结石清除率、术中估计失血量、术后住院天数、手术并发症等临床数据的关系.结果:1 791例S.T.O.N.E.评分为(7.27±1.27)分,结石清除组和结石残留组的S.T.O.N.E.评分分别为(6.94±1.08)分和(8.25±1.29)分(t=21.338,P=0.000).结石清除率为74.7％(1 338/1 791),443例(24.7％)出现手术并发症.S.T.O.N.E.评分与术后结石清除状态相关(P＜0.01),与术中估计失血量、手术时间、术后住院天数相关(P＜0.05),但与手术并发症不相关(P＞0.05).结论:S.T.O.N.E.肾结石评分系统能预测PCNL术后结石清除状态,有一定的预测围手术期情况的能力.但该评分系统能否预测手术并发症需进一步研究以证实.“,”Objective:To investigate the clinical value of S.T.O.N.E.nephrolithometry scoring system in predicting stone-free rate and complications in PCNL.Method:A retrospective analysis of clinical data of 1 791 consecutive patients with nephrolithiasis who underwent PCNL was done.We analyzed the correlation between S.T.O.N.E.score and stone-free rate,blood loss,operative time,length of hospital stay and complications.Result:The S.T.O.N.E.nephrolithometry score was (7.27 ± 1.27).Mean S.T.O.N.E.score of patients who had residual stones and who were stone-free were (6.94± 1.08) and (8.25± 1.29),respectively (t=21.338,P=0.000).The stone-free rate was 74.7％ (1 338/1 791).Complications occurred in 443 cases (24.7％).The S.T.O.N.E.score showed significant correlation with the postoperative stone-free status (P＜0.01).Also it correlated with intraoperative blood loss,operative time and length of hospital stay (P＜0.05).However,it didn\'t correlate with complications (P＞ 0.05).Conclusion:The S.T.O.N.E.nephrolithometry scoring system can predict postoperative stone-free status of PCNL,so it\'s able to predict perioperative situations.However,further researches are required to evaluate its performance in predicting complications in PCNL.