成年人股骨颈疝窝的发生率及CT表现

CT Features and Total Incidence of Herniation Pits of the Femoral Neck in Adults

目的探讨成年人股骨颈疝窝的发生率及CT表现。资料与方法对连续367例行盆腔CT检查且无髋关节症状患者的CT资料进行分析,按性别及年龄进行分组,观察股骨颈疝窝的发生率及CT表现。结果367例中64例发现股骨颈疝窝,发生率为17.4%,其中27例单独累及右侧,22例累及左侧,15例累及双侧。病灶主要位于股骨头颈交界区前外侧皮层下,多呈圆形、卵圆形,绝大多数病灶最大径<1cm,病灶周围有环状硬化。男、女发病率分别为25.7%(52/202)和7.2%(12/165)(χ2=21.52,P<0.05)。20～29岁、30～59岁、60～85岁股骨颈疝窝的发病率分别为11.1%(5/45)、16.1%(34/210)和22.3%(25/112)(χ2=3.33,P=0.1889)。结果成年人股骨颈疝窝的发生率高;依据其典型影像学表现,多可作出准确诊断。

Objective To discuss the CT features and total incidence of herniation pits of the femoral neck, Materials and Methods CT images of 367 patients who had pelvis multislice CT without hip joint symptom were analyzed. CT features and incidence of herniation pits in different sex and age group were recorded. Results Herniation pits of the hemoral neck were found in 64 of 367 patients. The total incidence of herniation pits of the femoral neck was 17.4%. Lesions were only located in right hemoral necks in 27 cases, 22 cases of lesions only involved left hemoral necks and 15 of 64 cases bilateral hemoral necks were involved. The most of lesions were round, oval, located in the superior lateral of the femoral head neck junction. Most of lesions were less than 10 mm in greatest diameter and surrounded by a thin clear sclerotic rim. The influence for male and female were 25.7% （52/202） and 7.2% （ 12/165 ） , χ^2 = 21.52 ,P 〈 0.05. The influence for age 20 -29,30 -59 and 60～85 were 11.1% （5/45） ,16.1% （34/210） and 22.3% （25/112） ,X2 =3.33,P =0. 1889. Conclusion The total incidence of herniation pits of the femoral neck is higher in adults, on basis of its typical CT features, herniation pits of the femoral neck can be diagnosed accurately.