股骨头缺血坏死的坏死指数与MRI分期的相关性分析

发布时间：2018-04-26 07:09

  本文选题：坏死指数 + 股骨头缺血性坏死　； 参考：《中国CT和MRI杂志》2017年01期

【摘要】：目的通过研究股骨头缺血性坏死在坏死指数与磁共振上的分期之间的相关性,找出坏死指数在股骨头塌陷的临界值,从而为利用MRI图像预测股骨头塌陷提供更可靠的参考标准(在股骨头缺血坏死患者中,预测是否会发生股骨头缺血坏死塌陷)。方法分析统计我院2012年6月至2014年2月明确诊断为股骨头缺血性坏死且MRI检查图像可以进行明确分期的共70例患者(共计100髋);依照伦诺克斯和亨格福德分期法(Lennox和Hungerford分期法)对100个股骨头缺血性坏死的MRI图像进行分期,另按照Koo等提出的坏死指数法计算坏死指数,对二者进行统计学分析,评价其相关性,并确定股骨头塌陷的临界坏死指数值。结果 I期至Ⅳ期股骨头缺血坏死指数分别为(0.31±0.08)(95%CI:0.29-0.34),(0.50±0.20)(95%CI:0.43-0.57),(0.62±0.18)(95%CI:0.53-0.71)及(0.83±0.23)(95%CI:0.70-0.95)。对各期股骨头坏死指数进行显著性检验,结果显示差异有统计学意义(P0.05)。以HSD法对任意两期坏死指数进行统计学分析,结果显示两两之间差异均有统计学意义。Ⅱ期中有3髋坏死指数大于53%,Ⅲ期中全部坏死指数大于53%。结论坏死指数与股骨头缺血坏死分期期数正相关,统计分析得到坏死指数53%可视作预测股骨头有无塌陷风险的临界值,在临床治疗中,坏死指数可以为预测股骨头缺血坏死是否塌陷提供参考。
[Abstract]:Objective to study the correlation between necrosis index and MRI staging of avascular necrosis of femoral head and find out the critical value of necrosis index in collapse of femoral head. This provides a more reliable reference standard for predicting femoral head collapse using MRI images (in patients with avascular necrosis of the femoral head, whether or not there will be avascular necrosis of the femoral head). Methods from June 2012 to February 2014, 70 patients (100 hips) diagnosed with avascular necrosis of femoral head in our hospital (total 100 hips) were diagnosed as avascular necrosis of the femoral head (100 hips) according to Lennox's and Hengerford's staging. MRI images of 100 avascular necrosis of femoral head were staging with Lennox and Hungerford staging. In addition, according to the necrotic index method proposed by Koo et al, the necrotic index was calculated, the correlation between them was analyzed statistically, and the critical necrosis index value of femoral head collapse was determined. Results the index of avascular necrosis of femoral head from stage I to stage 鈪，

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