C征诊断意义  

Diagnostic Significance of C Sign

作　　者：杨广夫[1] 许云龙[1] 黄伟年[1] 范义[1] 张启周李泳 蒋飞宇[1] 吴兴隆[1] 林焕兴[1] 张明东[1] 杨帆[1] 

机构地区：[1]遵义医学院附属深圳龙岗中心医院深圳市第九人民医院影像科,广东深圳518116

出　　处：《实用放射学杂志》2007年第1期66-69,共4页Journal of Practical Radiology

摘　　要：目的 研究足C征的临床X线诊断作用。方法 观察773例因外伤或疼痛就诊的标准踝部CRX线片，其中男565例，女208例，年龄10-81岁，踝外伤630例，踝疼痛143例。研究C征检出率、C征形态、跟距内关节间距和跟骨载距突的形态，分析C征与跟距联合的关系。结果 773例C征检出54．6％（422／773），女性检出61．1％（127／208），多于男性检出52．2％（295／565）（P〈0．05）。连续C征0．47％（2／422），非连续99．53％（420／422）。跟距内关节距离〈1．9mm占7．3％（31／422），≥2．0mm92．1％（389／422），间距消失者0．47％（2／422）。C征与外伤、疼痛和年龄无关（P〉0．05）。跟距联合发生率7．0％（54／773），其在阳性C征中发生率为12．3％（52／422），在阴性C征中仅为0．6％（2／351）。C征阳性者载距突下陷达67．5％（285／422）。结论 C征在国人常见，女多于男，在诊断跟距联合畸形时阳性C征者明显高于阴性C征者。Objective To study the clinicoradiologic significance of C sign. Methods 773 cases of standard ankle CR radiographs were presented for diagnosis of acute trauma and ankle pain. There were 565 males and 208 females, ages ranged from 10 to 81. There were 630 cases of acute trauma and 143 cases of painful ankle. C sign incidence, C sign figuration, distance of the medial facet of talocalcaneal joint, and the figuration of sustentaculum tall were studied. The relationship between C sign and talocalcaneal coalition was analysed. Results The incidence of C sign was 54.6% （422/773）. The female incidence was 61.1% （ 127/208 ） , which was more than that of male （52.2% ,295/ 565 ） （ P 〈0.05 ）. The continuous C sign was 0.47% （2/422） and discontinuous C sign was 99.53% （420/422）. The distances of the medial facet of talocalcaneal joint were 7.3% （31/422 , 〈 1.9 mm） ,92.1% （389/422,32.0 mm） , and 0.47% （2/422, bony fusion）. No significant difference was found between the trauma and painful groups, or between different age group on prevaleace of C sign. The incidence of talocalcaneous coalition was 7.0% （ 54/773 ） , in which the incidence was 12.3 % （ 52/422 ） for positive C sign, and 0.6 % （ 2/351 ） for negative C sign. Downward of the sustentaculum tall was 67.5 % （ 285/422 ） in positive C sign cases. Conclusion Positive C sign is very common in Chinese, which is more found in female than male. In diagnosis of talocalcaneal coalition, the positive C sign is more prevalent than the negative C sign.

关 键 词：C征 跟距联合 踝关节 计算机X线摄影 

分 类 号：R322.71[医药卫生—人体解剖和组织胚胎学] R814.42[医药卫生—基础医学]