计算机X摄影测量正常成人下肢负重轴线  

Computerized radiographic measure of weight-bearing axial alignment of the lower extremities in normal adult

作　　者：温宏[1] 胡月正[1] 陈成旺[1] 张宇[1] 史建靖[2] 

机构地区：[1]温州医学院第二附属医院骨科,浙江温州325027 [2]温州医学院第二附属医院影像科,浙江温州325027

出　　处：《温州医学院学报》2008年第6期507-509,共3页Journal of Wenzhou Medical College

摘　　要：目的:用计算机X摄影和数据处理获得正常成人下肢负重轴线。方法:选择平均年龄为25岁的志愿者160人,男女各80例。志愿者的筛选标准:没有下肢疾病、畸形和手术病史,步态正常,没有下肢疼痛和活动功能障碍等病史。两下肢站立负重位,髋、膝、踝各摄片1次,由计算机软件合成得到下肢全长图像,并计算出下肢负重轴线角(A角)、胫骨内倾角(B角)和负重轴线与股骨解剖轴线之间的夹角(C角)。结果:男女A角各为(178.5±1.7)°和(179.0±1.5)°,即存在轻度的内翻;男女B角分别为(94.1±1.8)°和(94.1±1.2)°,即男女的膝关节线都有大约4°左右的内倾;男女C角各为(5.7±0.6)°和(5.8±0.7)°。结论:本研究得到的男女A角和C角与国外报道的西方人数据差异没有显著性。但男女膝关节B角要大于西方人B角,这可能是中国人容易发生膝关节骨关节炎的主要原因。Objective： To obtain weight-bearing axial alignment of the lower extremities in normal adult with computerized radiography and data processing. Methods： The mean age of 80 male and 80 female volunteers was 25-year-old. Screening criterion of these volunteers was no any disease, deformity, surgical history, abnormal gait, pain and motive dysfunction of the lower extremities. A weight-bearing radiograph of both lower extremities was made with the X-ray beam centered at the hip, knee and ankle, respectively. The three radiographs were pieced together to form a whole leg photo on which the weight-bearing axial angle of the lower extremity （angle A）, the medial inclination angle of the tibial plateau （angle B） and the angle between the weight-bearing axis and femoral anatomical axis （angle C） were calculated with computer software. Results： Male and female angles A were （178.5±1.7）° and （179.0±1.5）° respectively. This meant that there was a little varus of lower weight-bearing axis. Male and female angles B were （94.1±1.8）° and （94.1 ±1.2）° respectively. This meant that there was 4°medial incli- nation of knee axis transverse. Male and female angles C were （5.7±0.6）° and （5.8±0.7）° respectively. Conclusion： The angle A and angle C of the study are similar to those of white adults reported by foreigners. But the male and female angle B is larger than that of white adults. It may point out that Chinese have a higher tendency of ostenarthritis of the knee.

关 键 词：计算机X摄影 轴线 下肢 

分 类 号：R684.3[医药卫生—骨科学]