MRI早期诊断股骨颈骨折术后并发股骨头坏死价值分析

Value analysis of MRI in early diagnosis of the femoral neck fracture complicated with femoral head necrosis

目的观察MRI早期诊断股骨颈骨折术后并发股骨头坏死的临床价值。方法回顾性分析2015年1月-2016年8月收治的股骨颈骨折术后并发股骨头坏死50例,患者术后不同时期的MRI及X线片检查结果,观察其诊断敏感性及随时间变化的股骨头坏死进展状况。结果患者术后3、6、9及12个月MRI检查的敏感性均高于X线检查,差异均有统计学意义(P<0.05)。MRI随时间变化的股骨头坏死进展结果显示,股骨头坏死发现所需时间与疾病进展会不断增加,对比不同时期差异均有统计学意义(P<0.05)。结论 X线和MRI对股骨头坏死早期均有较高诊断率,但MRI敏感性明显高于X线检查,适用于早期股骨颈骨折术后并发股骨头坏死的诊断中。

Objective To observe the clinical value of MRI in the early diagnosis of femoral head necrosis after femoral neck fracture surgery.Methods 50 patients with femoral neck necrosis after femoral neck fracture surgery in the hospital from January 2015 to August 2016 were slected as study object.The patients with this study were retrospectively analyzed for MRI and X-ray eXamination at different time Results.The diagnostic sensitivity and changes in time of femoral head necrosis of the progress of the situation were observed,and the eXamination results between MRI and X-ray eXamination were compared.Results MRI sensitivity at 3 months,6 months,9 months,and 12 months were all higher than X-ray eXamination,the differences were statistically significant（P〈0.05）.The results of MRI of the change of femoral head necrosis showed that the time required for discovering femoral head necrosis and the progression of the disease would be increased,and there was significant difference between different periods（P〈0.05）.Conclusion X-ray and MRI had higher diagnostic rate in the early stage of femoral head necrosis,but the sensitivity of MRI was significantly higher than that of X-ray eXamination,and it is suitable for early diagnosis of femoral head necrosis after femoral neck fracture surgery.