Hello Jennifer, I suffered spinal cord compression to my cervical spine at C3, C4, C5, C6 levels. A laminectomy with laminoplasty was performed January 2021. I don't believe there was nerve root compression. I'm sorry I don't have any other information to provide according to your comment.
I was supposed to have surgery on December 26, but an issue arose, and I was cancelled. Today (28th) I am to see the surgeon to touch base and to reschedule the procedure for my lumbar. Being informed he is booked until mid-January I may be scheduled at that time. This is copied from my CT scan of June 2023:
IMPRESSION:
* Advanced degenerative changes from L3-S1 with severe central spinal canal
stenosis at L3-4 and L4-5. Foraminal narrowing at L3-4 on the left, L4-5
bilaterally, and L5-S1 bilaterally.
* Mild (grade 1) anterolisthesis of L3-4 and L4-5. Mild (4 mm) retrolisthesis
of L5-S1.

This is an X-ray from January 2023:
IMPRESSION:
1. Multilevel degenerative changes of the lumbar spine.
2. Grade 1 anterolisthesis of L3 upon L4 and L4 upon L5. No evidence for dynamic
instability.

This is MRI September 2022:
IMPRESSION:
In comparison to prior study from 2019 there has been interval progression of
degenerative changes and spinal canal narrowing.
* Grade 1 anterolisthesis of L3 on L4 and L4 and L5, additional retrolisthesis
of L5 on S1.
* Redemonstration of severe spinal canal stenoses and L3-L4, moderate right
neuroforamina stenosis and severe left neuroforamina stenosis with impingement
of exiting left L3 nerve root. Interval worsening of spinal canal narrowing at
this level. Persistent cauda equina nerve root compression at this level.
* Redemonstration of severe spinal canal stenoses at L4-L5, moderate right
neuroforamina stenosis and were left neural foramina stenosis with impingement
of exiting left L4 nerve root. Interval worsening of spinal canal narrowing at
this level. Persistent cauda equina nerve root compression at this level.
* Moderate spinal canal stenoses at L5-S1, moderate bilateral neuroforamina
stenosis with abutment of bilateral exiting L5 nerve roots.

These are the only recent results under those particular tests (CT, X-Ray, MRI) on those dates. I do not know what it is called that the surgeon will perform but I can return with that information after the procedure. I am expected to be admitted in-patient for one day plus 1 hr. I suppose that's code for a second day if necessary. This Dr.'s name is Jaime Gasco and he wrote a book with someone else that I have downloaded for free. I would love to read his book but don't have the time "The Essential Neurosurgery Companion."
I have included a web capture (Upload) of his book on Amazon but if you do a search may be able to find a link to download it for free as I did. It's the first three images listed from left to right, so you'll know the cover.
Let me know if there is anything more I can do to assist.