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摘要目的明确胫骨X线影像上的骨性标志来确立描述与年龄相关的儿童生理性胫骨弯曲的正常值。材料与方法选取526例0~17岁病人的常规下肢X线影像,由2名放射科医生进行单盲的回顾性阅片。在正侧位片上,3条线确定胫骨的长度和成角。A线连接胫骨近端和胫骨干骺端的最远点,B线、C线相当于胫骨干骺端的两侧连线。A/B角是指近端角,A/C角是指远端角。胫骨曲度用与A线平行的D线和胫骨皮质切线之间的角度表示。用线性回归方法计算出正常值。应用Bland-Altman图形检验同一观察者不同时间和不同观察者之间的一致性。结果同一观察者不同时间的一致
Abstract Objective To determine the bony signs of tibia radiographs to establish the normal values describing age-related physiological tibial curvature in children. Materials and Methods 526 cases of patients aged 0 to 17 years old routine X-ray images of the lower limbs, two radiologists for a single-blind retrospective reading. On the anteroposterior slice, the 3 lines determine the length and angulation of the tibia. A line connecting the proximal tibia and tibia metaphyseal furthest point, B line, C line is equivalent to the tibial metaphysis on both sides of the connection. A / B angle refers to the proximal angle, A / C angle refers to the distal angle. The tibial curvature is expressed as the angle between the D line parallel to the A line and the tangential cortical tangential line. Using linear regression method to calculate the normal value. The Bland-Altman graph is used to test the same observer’s consistency over time and between different observers. Results of the same observer at different times of the same