胫骨结节远端高位截骨术中MPTA与WBLR的相关性分析

被引:4
作者
丁天送 [1 ]
田向东 [2 ]
谭冶彤 [2 ]
薛志鹏 [2 ]
马晟 [2 ]
胡元一 [2 ]
李晓敏 [1 ]
尹岳桐 [1 ]
机构
[1] 北京中医药大学
[2] 北京中医药大学第三附属医院微创关节科
关键词
胫骨结节远端高位截骨术; 相关性分析; 下肢力线比; 胫骨近端内侧角;
D O I
10.13795/j.cnki.sgkz.2023.05.005
中图分类号
R687.31 [];
学科分类号
摘要
目的 探讨胫骨结节远端高位截骨术(distal tibial tuberosity high tibial osteotomy, DTT-HTO)中胫骨近端内侧角(medial proximal tibia angle, MPTA)与下肢力线比率(weight-bearing line ratio, WBLR)的相关性,为手术提供依据。方法 选取2019年10月至2021年10月在北京中医药大学第三附属医院微创关节科行DTT-HTO治疗的26例(28膝)患者,其中男4例,女22例;左膝9个,右膝19个;年龄50~81岁,平均年龄(65.68±6.53)岁。所有患者均完成手术并随访,期间无不良事件发生。采用MPTA和WBLR评估手术前后下肢力学状态的变化;并计算手术前后MPTA和WBLR的改变值,采用美国特种外科医院(the hospital special surgery, HSS)评分评估手术前后膝关节功能,并计算手术前后HSS的改变值。本研究将WBLR设置在50%~70%的良好位置,采用SPSS 25.0软件进行数据分析。绘制受试者工作特征(receiver-operating characteristic, ROC)曲线,得到曲线下面积(area under the curve, AUC),分别计算50%和70%WBLR对应的MPTA临界值。根据两个临界值将患者分为矫正不足组、矫正适当组和矫正过度组,比较三组患者术前基线信息,术前、术后WBLR、MPTA、HSS和手术前后的改变值。用SPSS 25.0软件绘制术前、术后和手术前后改变值WBLR和MPTA的相关性分析散点图。结果 术后WBLR、MPTA、HSS与术前比较均有明显变化,差异有统计学意义(P>0.01)。无论术前、术后或手术前后改变值,MPTA均与WBLR相关,AUC均大于0.5。计算得出,50%和70%WBLR对应的MPTA的临界值分别为90.5°和93.5°,50%和70%WBLR对应的MPTA改变值的临界值分别为6.5°和9.5°。三组术前基线信息差异无统计学意义;术前MPTA、术后MPTA改变值、术后MPTA、术后WBLR、术后HSS和术后WBLR改变值在三组间比较差异有统计学意义,并根据阳性结果进行组间两两比较。结论 MPTA对膝骨关节炎有一定的诊断价值。作为一种简单省时的单关节测量方法,建议将MPTA应用于C型臂膝关节术中图像,并作为除下肢力线外HTO测量的参考值,以达到术中测量准确、方便的要求。
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页码:405 / 410+416 +416
页数:7
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