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2. Spondylolisthesis - Wikipedia

   en.wikipedia.org/wiki/Spondylolisthesis

   Spondylolisthesis is classified as one of the six major etiologies: degenerative, traumatic, dysplastic, isthmic, pathologic, or post-surgical. [7] Spondylolisthesis most commonly occurs in the lumbar spine, primarily at the L5-S1 level, with the L5 vertebral body anteriorly translating over the S1 vertebral body. [7]

3. Lumbar spinal stenosis - Wikipedia

   en.wikipedia.org/wiki/Lumbar_spinal_stenosis

   With increasing age, the occurrence of degenerative spondylolisthesis becomes more common. The most common spondylolisthesis occurs with slipping of L4 on L5. Frymoyer showed that spondylolisthesis with canal stenosis is more common in diabetic women who have undergone oophorectomy (removal of ovaries). The cause of symptoms in the legs can be ...

4. Retrolisthesis - Wikipedia

   en.wikipedia.org/wiki/Retrolisthesis

   Retrolisthesis can be classified as a form of spondylolisthesis, since spondylolisthesis is often defined in the literature as displacement in any direction. [1] [2] Yet, medical dictionaries usually define spondylolisthesis specifically as the forward or anterior displacement of a vertebra over the vertebra inferior to it (or the sacrum).

5. Spondylolysis - Wikipedia

   en.wikipedia.org/wiki/Spondylolysis

   This stress fracture most commonly occurs where the concave lumbar spine transitions to the convex sacrum (L5-S1). A significant number of individuals with spondylolysis will develop spondylolisthesis, which is true for 50-81% of this population. [12] [3] Pars interarticularis marked with red lines

6. Behind UnitedHealth exec's accused killer, a possible history ...

   www.aol.com/news/behind-unitedhealth-execs...

   Mangione's profile on X includes an x-ray of a person who has had an L5-S1 spinal operation in which two vertebra are surgically fused together. The surgery has an overall success rate of 80% ...

7. Sciatica - Wikipedia

   en.wikipedia.org/wiki/Sciatica

   The sciatic nerve comprises nerve roots L4, L5, S1, S2, and S3 in the spine. [26] ... If the cause is spondylolisthesis or spinal stenosis, surgery appears to provide ...