Fused vertebrae

Question

Why is it OK for sacral vertebrae to be shoes, or not those above the sacrum?

Answer 1

While your question is very interesting it is difficult for me to answer it because of a language problem, what do you mean by the term 'shoes" in English this doesn't make sense. So. I will guess this is what you want to know, why are the vertebra fused in the sacrum and those above it, not fused?. The answer lies within the function of the spine above the sacrum. The sacrum is fused because it helps to provide support for the organs found lower in the body. For example the urinary bladder, the uterus. Also the sacrum doesn't need to move. Compare the movement in the sacral area versus that in the neck. If there wasn't any movement in the cervical vertebrae you couldn't bend your head forward nor turn it to look left or right. The same holds true for movement in your chest or abdomen, fusion there would not let you be flexible, any movement if the vertebra were fused would be severely limited. There are times when it is necessary to fuse vertebra due to injury or illness, but this is done only when fusion improves or save s the life of the patient. The answer is because is very little or no movement in the sacrum and there is a lot of movement in the vertebra superior (above it). I sincerely hope this answers your question

Answer 2

Here's what I found on the Internet: Spinal fusion, also called spondylodesis or spondylosyndesis, is a neurosurgical or orthopedic surgical technique that joins two or more vertebrae. This procedure can be performed at any level in the spine (cervical, thoracic, or lumbar) and prevents any movement between the fused vertebrae.

I have a feeling that you omited part of the question.