a posterior

基本解释

Whereas immediate complications due to anterior approaches are limited, patients with myelopathy who undergo a posterior approach have a more sobering outlook.
尽管前路手术导致的可立即出现的并发症较为有限，但接受后路手术的脊髓病患者预后则相对不那么乐观。
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Summary of Background Data. Reconstruction of the anterior column from a posterior approach could be easier for the patient and for the surgeon with this technique.
背景资料概要：使用本技术于后路重建前柱的稳定性，可以使医生和患者都更加的便利。
Technically, back labor occurs when the fetus is in a posterior position, with its face up and the back of its head pressing against your sacrum, or the back of your pelvis.
从技术上来说，背阵痛发生在胎儿处于背对的位置，它的脸朝上而后脑勺紧靠你的骶骨或者骨盆后方。

One scenario the group was told to picture was a female quarterback putting her hands too close to the posterior of a male center.
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Scans also show that the temporal lobe, which contains the hippocampus, and another brain region called the posterior cingulate use less glucose than a normal brain, suggesting they have shut down.
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Placed neatly in the upper middle portion of its posterior, is the 8-megapixel rear camera (ringed with a gentle hint of blue) with side-mounted single LED flash.
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