为了扶起要跌倒的孩子,突然抓手腕把他拎起来,或用力拉手时,容易发生桡骨头半脱位(也叫牵引肘)。不同于脱位,这是一种肘关节的细环状韧带发生移动的状态,有的人错误地认为是肩膀脱离。其实,婴儿和小孩子一般都不会发生肩膀脱离。而牵引肘通常是由于连接骨头的环状韧带发育不成熟引起的。所以,韧带发育成熟的7岁以上孩子,几乎不会发生这种情况。 In order to lift the child to fall, suddenly grab the wrist to pick him up, or hard to handle, prone to radial head subluxation (also called traction elbow). Unlike dislocation, this is a condition in which the ligaments of the elbow are moving, and some mistakenly think that the shoulder is detached. In fact, babies and children do not usually have their shoulders detached. Elbow traction is usually caused by the immature bony ligaments attached to the bones. Therefore, the development of ligament mature children over the age of 7, almost never happen.