三维CT重建在评价发育性髋关节脱位髋臼形态中的应用  

The Application of Three - dimensional CT Reconstruction in Evaluating Acetabular Morphology of Developmental Dislocation of the Hip

作　　者：孙国昌[1,2] 李洪秀 张力[3] 曾祥一[1] 

机构地区：[1]辽宁医学院附属第三医院,辽宁锦州121000 [2]盘锦市第二人民医院,辽宁盘锦124000 [3]锦州市中心医院,辽宁锦州121000

出　　处：《辽宁医学院学报》2013年第5期57-59,I0003,I0004,共5页Journal of Liaoning Medical University (LNMU) Bimonthly

摘　　要：目的探讨螺旋三维CT重建(3D-CT)对发育性髋关节脱位(DDH)髋臼形态改变的应用价值。方法选择47例3岁以下DDH患儿,行三维CT重建检查观察髋臼的病理形态,从髋臼的前、后、外、下多个平面分别测量前外侧臼唇角(ALAL)、侧面髋臼上缘倾斜度(LAI)、髋臼前倾角(AA)和髋臼横向旋转角(TRA)等参数。结果 DDH患儿异常侧的ALAL、LAI、AA和TRA均大于正常侧(P<0.05),各项参数均较正常侧具有显著性差异。正常侧髋臼的髋臼横向旋转角TRA,<18个月组平均为(12.37±4.54)°,≥18个月组平均为(12.91±4.35)°,P=0.324,差异无统计学意义;而脱位侧髋臼的髋臼横向旋转角TRA,<18个月组平均为(24.50±4.21)°,≥18个月组平均为(23.03±5.11)°,P=0.043,有显著性差异。结论三维CT测量对揭示DDH时髋关节的病理改变具有重要临床应用价值。Objective To explore the application value of three -dimensional spiral CT reconstruction （3D -CT） in acetabular morphology of developmental dislocation of the hip （DDH）. Methods The 3 D - CT reconstruction check - up were carried out to 47 cases of DDH children under 3 years old to observe the pathological morphology of acetabulum. An- terolateral mortar under lip Angle （ ALAL）, side edge gradient on the acetabulum （ LAI）, acetabulum anterior Angle （AA）, acetabulum lateral rotation Angle （TRA） and other parameters were measured from muhiple planes of the acetabu- lum （the front, rear, outer and under planes）. Results Abnormal lateral ALAL, LAI, AA and TRA of the DDH patients were greater than the normal side （P 〈 0. 05 ）, and each parameter had greater significant differences than the normal side. Lateral rotation angle （TRA） of normal bilateral acetabulum in the less than 18 month group was （ 12. 37 ＋ 4. 54） ~on av- erage , while TRA of the more than or equal to 18 month group was （ 12. 91 ＋ 4. 35） ~, P =0. 324, so there was no sig- nificant statistical difference. Dislocation bilateral acetabulum TRA of the less than 18 month group was （24. 50 ＋ 4. 21 ） on average, while TRA of the more than or equal to 18 month group was （23.03 ＋ 5. 11 ） ~, P = 0. 043, so there was significant difference. Conclusion 3D - CT measurement has important clinical value in revealing DDH hip pathologic change.

关 键 词：髋臼 髋关节脱位 发育性 三维CT 

分 类 号：R816.8[医药卫生—放射医学]