本文關(guān)鍵詞： 前交叉韌帶 膝損傷 Blumensaat角 診斷　出處：《山西醫(yī)科大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：目的:用ROC曲線確定Blumensaat角對(duì)于診斷前交叉韌帶損傷診斷的最佳臨界值,以期對(duì)Blumensaat角應(yīng)用于ACL損傷診斷的價(jià)值進(jìn)行客觀評(píng)價(jià)。方法:回顧性搜集2015年1月至2016年1月間本院做過膝關(guān)節(jié)鏡檢的患者167例,對(duì)研究對(duì)象的年齡、性別、患肢左右情況分別記錄。調(diào)取MRI圖像,分別測(cè)得各對(duì)象Blumensaat角,將研究對(duì)象分為2組:A組為Blumensaat角≤0°的研究對(duì)象,B組為Blumensaat角0°的研究對(duì)象。將B組的統(tǒng)計(jì)數(shù)據(jù)繪制ROC曲線,得出當(dāng)Blumensaat角0°時(shí),診斷前交叉韌帶損傷的最佳臨界值。而后根據(jù)ROC曲線所得最佳臨界值,求得總樣本的符合率。結(jié)果:研究對(duì)象的年齡、性別、患肢左右差異沒有統(tǒng)計(jì)學(xué)意義。A組共51例,其中金標(biāo)準(zhǔn)下(診斷前交叉韌帶損傷的金標(biāo)準(zhǔn):關(guān)節(jié)鏡檢)確診前交叉韌帶損傷的研究對(duì)象49例,前交叉韌帶未損傷的研究對(duì)象2例。所以本研究中當(dāng)Blumensaat角≤0°時(shí),指示損傷的符合率達(dá)96.07%。B組共116例,ROC曲線下面積為0.910,對(duì)應(yīng)的最佳診斷界點(diǎn)值為15°,敏感性達(dá)70.0%,特異性達(dá)95.8%。即Blumensaat角≥15°時(shí)指示前交叉韌帶損傷的概率較大,當(dāng)0°Blumensaat角15°時(shí)多指示前交叉韌帶未損傷。而后將Blumensaat角≤0°及≥15°作為診斷前交叉韌帶損傷的指標(biāo),與關(guān)節(jié)鏡鏡檢結(jié)果比較,測(cè)得總樣本的符合率為92.8%。結(jié)論:Blumensaat角對(duì)于前交叉韌帶損傷的診斷有一定的參考意義。利用Blumensaat角輔助診斷前交叉韌帶損傷時(shí),當(dāng)角度≤0°或≥15°時(shí),前交叉韌帶損傷的概率較大,與關(guān)節(jié)鏡鏡檢結(jié)果比較,總樣本的符合率為92.8%。其可以作為臨床診斷前交叉韌帶損傷的一個(gè)參考指標(biāo)。
[Abstract]:Objective: to determine the optimal critical value of Blumensaat angle for the diagnosis of anterior cruciate ligament injury by ROC curve. Methods: from January 2015 to January 2016, we retrospectively collected 167 patients who had undergone knee arthroscopy from January 2015 to January 2016, and analyzed the age and sex of the subjects. The left and right limbs were recorded separately. MRI images were collected, and the Blumensaat angles of each object were measured. The subjects were divided into two groups: group A was the object of study with Blumensaat angle 鈮，

本文編號(hào)：1505176