骶骨

On the pelvic surface of the sacrum are four slight ridges.

在骶骨的骨盆里有四个小的脊。

The five vertebrae next to the lumber vertebrae are fused together to form the sacrum.

在腰椎下是五个椎骨融合在一起形成的骶骨。

Objective To evaluate the safety of five methods of sacral screw fixation.

目的评价五种骶骨内固定的安全性。

Study Design. Quantitatie versus subjective evaluation of sacral doming in lumbosacral spondylolisthesis.

研究设计： 客观和主观评价腰骶段滑脱患者的骶骨隆起。

Moreover, sacrectomy may cause pelvic instability that may necessitate additional surgery.

而且， 骶骨切除引起的骨盆失稳，可能需要另外的手术。