Results the value of the lumbar spine bone density reached peak when male or female was about 30 years old, and then, went down gradually with the increase of age.

结果腰椎骨密度值不论男性和女性，均在30岁左右达峰值，以后随年龄增长，骨密度值逐渐降低。

youdao

A bone in my spine was out of alignment.

我的脊椎骨有一节脱位。

《牛津词典》

The normal anatomy the spine is preserved since the frontal approach takes advantage of normal tissue planes and does not require removal of any bone.

前路进入手术是利用正常的组织面，不需要去除任何骨结构；所以可以保留正常的脊柱解剖结构。

youdao

The bone around the spine doesn't form properly, causing part of the spinal cord to stick out of the baby's back.

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It is used instead of taking bone from the hip in spinal fusion surgeries in which extra bone is added to the spine to fuse parts of the back together, stabilizing it.

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It builds bone density by 5% to 10% in the spine and hip and cuts in half the risk of a debilitating hip fracture.

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