题目内容 (请给出正确答案)
提问人:网友13***556 发布时间:2022年4月5日 21:48
[单项选择题]

关于骨盆径线,下述哪项错误()。

A.髂棘间径是两髂前上棘外缘的距离

B.骶耻外径<18cm时有可能骨盆入口狭窄

C.坐骨结节间径<8cm,表示骨盆出口狭窄

D.对角径长度减去1.5~2cm,即为骨盆入口前后径长度

E.耻骨弓角度小于80°不正常

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