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首页> 外文期刊>Radiology >Cartilaginous abnormalities and growth disturbances in Legg-Calve-Perthes disease: evaluation with MR imaging.
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Cartilaginous abnormalities and growth disturbances in Legg-Calve-Perthes disease: evaluation with MR imaging.

机译:Legg-Calve-Perthes病的软骨异常和生长障碍:MR成像评估。

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摘要

PURPOSE: To evaluate the magnetic resonance (MR) imaging appearance of cartilaginous abnormalities in Legg-Calve-Perthes (LCP) disease and their association with growth arrest. MATERIALS AND METHODS: Twenty-seven MR images and radiographs of 25 hips in 23 patients were reviewed for epiphyseal, physeal, and metaphyseal abnormalities. Follow-up radiographs (mean time, 20.5 months) were evaluated for growth arrest. RESULTS: Epiphyseal abnormality seen in 74% of cases was not related to growth disturbances. Transphyseal bone bridging on MR images, the strongest predictor of abnormal growth (P < .01), was found in 63% of femurs. MR imaging helped detect physeal abnormalities with greater sensitivity (94%), specificity (89%), and positive predictive value (94%) than radiography. Metaphyseal extension of physeal cartilage seen in 81% of cases was associated with growth abnormality (P < .01), particularly when detected at radiography. CONCLUSION: Cartilaginous physeal and metaphyseal abnormalities in LCP disease are common and frequently result in growth arrest.
机译:目的:评估Legg-Calve-Perthes(LCP)疾病中软骨异常的磁共振(MR)成像表现及其与生长停滞的关系。材料与方法:对23例患者的25个髋关节的27个MR图像和X线照片进行了骨epi,骨和干meta端异常检查。评估了X线片(平均时间为20.5个月)的生长停滞。结果:74%的患者出现Epi骨异常与生长障碍无关。 MR图像上的经phy骨桥接是异常生长的最强预测因子(P <.01),在63%的股骨中被发现。 MR成像比X线照相术具有更高的灵敏度(94%),特异性(89%)和阳性预测值(94%),有助于检测脉络膜异常。在81%的病例中可见到的软骨干extension端延伸与生长异常有关(P <.01),尤其是在X线摄片时。结论:LCP疾病中的软骨干meta端和干phy端异常很常见,经常导致生长停滞。

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