發(fā)布時(shí)間：2018-07-22 10:52

【摘要】：目的:評(píng)估膝關(guān)節(jié)三維CT掃描結(jié)合MIMICS圖像分析系統(tǒng)與X線平片在評(píng)價(jià)股骨滑車發(fā)育不良中的差異及其臨床應(yīng)用價(jià)值。方法:2013年5月至2014年1月,連續(xù)30例診斷為復(fù)發(fā)性髕骨脫位患者接受手術(shù)治療�；颊咝g(shù)前均接受膝關(guān)節(jié)三維CT掃描,采用MIMICS圖像分析系統(tǒng)進(jìn)行處理并計(jì)算股骨滑車突起指數(shù)�；颊咝g(shù)前接受膝關(guān)節(jié)X線透視檢查,獲得純側(cè)位X線片,測(cè)量股骨滑車突起指數(shù)。對(duì)比兩種評(píng)估方法結(jié)果的差異。以X線片測(cè)量方法為標(biāo)準(zhǔn),計(jì)算三維CT分析方法的敏感性、特異性、陽(yáng)性預(yù)測(cè)值以及陰性預(yù)測(cè)值。結(jié)果:30例患者采用膝關(guān)節(jié)側(cè)位X線片方法評(píng)價(jià)股骨滑車突起指數(shù)均值為5.3±1.8 mm(3.2至8.4 mm)。膝關(guān)節(jié)三維CT掃描評(píng)價(jià)股骨滑車突起指數(shù)平均為5.2±1.5 mm(3.5至8.1mm)。兩種測(cè)量方法結(jié)果的差異無(wú)統(tǒng)計(jì)學(xué)意義(P=0.8460.05)。以X線片方法為標(biāo)準(zhǔn),三維CT評(píng)估方法的敏感性、特異性、陽(yáng)性預(yù)測(cè)值以及陰性預(yù)測(cè)值分別為89.5%、81.8%、89.4%、82.0%。結(jié)論:膝關(guān)節(jié)三維CT掃描評(píng)估股骨滑車發(fā)育不良能夠獲得良好的敏感性、特異性。與膝關(guān)節(jié)側(cè)位X線片評(píng)估方法所得結(jié)果無(wú)顯著差異。CT影像技術(shù)能夠提供更簡(jiǎn)便、安全的評(píng)估途徑。
[Abstract]:Objective: to evaluate the difference and clinical value of 3D CT scan combined with mimics image analysis system and X-ray plain film in the evaluation of femoral trochlear dysplasia. Methods: from May 2013 to January 2014, 30 consecutive patients with recurrent patellar dislocation underwent surgical treatment. All the patients underwent 3 D CT scan before operation, and MIMICS image analysis system was used to process and calculate the femoral trochlear protuberance index. X-ray examination of knee joint was performed before operation, and lateral X-ray films were obtained to measure the femoral trochlear protuberance index. Compare the results of the two evaluation methods. The sensitivity, specificity, positive predictive value and negative predictive value of three-dimensional CT analysis were calculated according to X-ray measurement method. Results the average index of femoral trochlear process was 5.3 鹵1.8mm (3.2-8.4 mm).) in 30 cases of femur with lateral radiography of knee joint. The average index of femoral trochlear process was 5.2 鹵1.5 mm (3.5 to 8.1mm) on 3D CT scan of knee joint. There was no significant difference between the two methods (P < 0. 846. 05). The sensitivity, specificity, positive predictive value and negative predictive value of 3D CT were 89.58.81.8and 89.40.The sensitivity, specificity, positive predictive value and negative predictive value were 82.0 and 82.0, respectively. Conclusion: 3 D CT scan of knee joint can obtain good sensitivity and specificity in evaluating femoral trochlear dysplasia. There was no significant difference between the results of lateral radiography and knee joint lateral radiography. Ct imaging technique could provide a more convenient and safe way to evaluate the knee joint.
【作者單位】： 河北省承德縣醫(yī)院外三科;北京積水潭醫(yī)院運(yùn)動(dòng)損傷科;
【分類號(hào)】：R816.8;R681.1

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