MSCT图像重建技术在尺骨撞击综合征中的应用

目的评价MSCT图像重建技术在尺骨撞击综合征诊断中的应用价值。方法回顾性分析经腕关节镜检查证实的18例尺骨撞击综合征患者MSCT图像重建技术及标准后前位X线平片检查的影像资料,对尺骨变异、月骨及三角骨异常变化进行统计学分析。结果⑴MSCT图像重建技术及标准后前位X线平片检查测量出的尺骨变异差异无统计学意义(t=0.3562,P>0.05);⑵MSCT图像重建显示18例尺骨阳性变异15例,占总例数83.3%,其中阳性变异超过2 mm者11例,占总阳性变异的73.3%;中性及阴性变异3例,占总例数16.7%;⑶MSCT重建技术显示月骨和/或三角骨异常变化14例,占总例数77.8%,其中单纯月骨异常变化8例,月骨及三角骨同时异常变化5例,单纯三角骨异常变化1例。标准后前位X线平片能显示月骨和/或三角骨异常变化10例,占总例数55.6%,其中单纯月骨异常变化6例、月骨及三角骨同时异常变化4例,无单纯三角骨异常变化;⑷MSCT图像重建技术测量尺骨阳性伴月骨及三角骨异常变化14例,占总例数77.8%,尺骨阳性变异不伴月骨及三角骨异常变化1例,占总例数5.6%。阳性变异大于2 mm伴月骨及三角骨异常变化11例,占总例数61.1%,月骨及三角骨异常变化例数的78.6%。无尺骨中性及阴性变异伴月骨及三角骨异常变化。结论MSCT图像重建技术及后前位X线平片测量尺骨变异无统计学差异;尺骨撞击综合征发展过程中尺骨阳性变异呈易感因素;尺骨阳性变异大于2 mm时易引起月骨、三角骨异常变化;MSCT图像重建技术可以很好地显示尺骨变异及月骨、三角骨骨质硬化情况。

Application of MSCT imaging reconstruction technique for the ulnar impaction syndrome

Objective To evaluate the application value of MSCT imaging reconstructive technique for the ulnar impaction Syndrome.Methods The X-ray examination and MSCT imaging reconstruction documents of 18 cases,diagnosed as ulnar impaction Syndrome through wrist arthroscopy examination,were analyzed retrospectively,and the abnormal changes of lunate and pyramid bone,ulnar variance were analyzed statistically.Results⑴MSCT imaging and X-ray had no statistical difference in ulnar variance(t=0.35,P>0.05);⑵15 cases had ulnar positive variance in MSCT,accounted to 83.3%,among them,11 cases exceeded 2 mm,accounted to 73.3%,3 cases had negative and neutral variance with the percentage of 16.7%;⑶14 cases had lunate and/or pyramid bone abnormal variance with the percentage of 55.6%,among them,8 cases had simple lunate variance,5 cases had lunate and pyramid variance,1 case had only pyramid variance.10 cases had lunated and/or pyramid variance in x-ray with the percentage of 55.6%,among them,6 cases only had lunate variance,4 cases had lunate and pyramid variance,no case had only pyramid variance;⑷14 cases had ulnar positive variance combined with lunate and pyramid changes,accounted to 5.6%.11 cases had more than 2 mm positive ulnar variance combined with lunate and pyramid abnormal changes,accounted to 61.1%,accounted the lunate and pyramid changed percentage of 78.6%.no ulnar neutral and negative variance combined with lunate and pyramid abnormal changes occurred.Conclusion MSCT imaging and anteroposterior X-ray have no statistical difference in measuring ulnar variance;ulnar positive variance presents susceptible factor in ulnar impaction syndrome development;when the ulnar positive variance is more than 2 mm,lunate and pyramid are easy to have abnormal changes;MSCT imaging reconstruction technique can better show ulnar variance and bone sclerosis in lunate and pyramid bone.