【摘要】 目的　研究肘关节X线片中肱桡关系划线是否中断作为诊断儿童肘部损伤的重要参考依据。方法　报道 2 1例 2～ 8岁儿童的 42肘正常肘关节X线片 5 4张 ,在摄前后位和侧位X线片时分别采用不同位置 ,划线得出与肱骨小头中心相交、非中心相交、相切、相离的不同结果。结果　正位X线片中 ,桡骨颈纵轴延长线与肱骨小头骨骺中心相交仅仅出现在标准位即前臂旋后 90°时 ,其它位置均出现非中心相交 ,相切或相离 ,侧位X线片中 ,中心相交出现在肘关节屈曲 6 0°～ 12 0°位置。结论　儿童肘部损伤时 ,由于难于配合或投照因素 ,临床医师不得不接受大量非标准位X线片 ,肱桡关系划线非中心相交时 ,必须考虑上述因素 ,避免误诊、漏诊。更多还原

【Abstract】 Objective Whether disruption of the radiocapitellar line(RCL) is a significant sign in cases of suspected elbow injury.Methods Reporting 54 films with different radiographic projection taken from age 2～8 years in normal elbows,RCL reach different conclusions such as centre intersect,non-centre intersect,tangential,apart to the capitellum.Results The centre intersect of RCL appeared only in standard anteroposterior position by 90 degree of supination of the forearm,appeared 60～120 degree flexion in lateral position.Conclusion In many cases children of an injured elbow,orthopaedist must often be accepted a large number of non-standard projections due to non-cooperation and radiographic positions,it should be borne in mind the validity of RCL sign can be affected by a lot of factors avoiding misdiagnosis.更多还原