A nerve root impingement is what occurs when the root of a nerve i.e. the portion that enters the vertebral column via a vertebral foramen (hole in the spine) is pressed upon (impinged) by a number of possible things.
The more common of these being osteophytes (degenerative bony changes in the spinal body). A space occupying lesion (tumor of some kind begning or malignant). Spinal muscle tissue becoming hypertonic (stuck in contraction) and causing a narrowing of the foraminal space as a result. Disc degeneration resulting in a narrowing of the foraminal space. Trauma can also result in nerve root compression. Degenerative vertebral disorders (such as spinal TB, ankylosing spondylitis etc) may also result in nerve root compression.
Localised to the Cervical spine (neck) Thoracic outlet syndrome (can create nerve root impingement often resulting in parasthesia (abnormal sensation) and/or numbness in the arm and hand of the affect side (i.e left nerve root compression = left arm and hand issues). TOS is essentially the same as hypertonic changes in the muscles lower down however as it is such a common dysfunction it has its own name.
Nerve root impingement can create neurological symptoms (pain, parasthesia, numbness or in motor nerves, loss of motor function). These symptoms tend to occur below the site of impingement however they can also present above the impingement i.e pain in your neck as a result of a T1 impingement.
What is this
Nerve root clumping is usually indicative of arachnoiditis, a painful, progressive spinal condition. Please research arachnoiditis.
Nerve root outlet of the spinal cord, most often between L4-L5 or L5-S1.
L4,l5,s1,s2,s3
You probably mean exiting L5 spinal nerve--the nerve root ends at the DRG inside the lateral foramen. It is fatty tissue within the neuroforamen. Outside the foramen there is typically muscle.
It means that the disc between L5-S1 has protruded out to one side (not centrally), and is affecting (most likely compressing) the S1 nerve root which is below the level of the herniation (the L5 nerve root has already exited the IVF). From this report I am assuming you are having some sensory or motor problems in your lower limbs?!
The nerves coming off the spinal cord at L5 and S1 are being pushed out of their normal position.
what is disc protrusion in the right neural foramen abutting right L5 nerve root
That is the term to indicate that a herniated (spinal) disk material is bulging into the space where the nerve ganglion is or where the nerve runs...
disc is herniated ( sticks out further than what its supposed to meaning it sticks out past your vertebrates) and it has your nerve pinched. I'm going to guess that you have leg pain as well right? lol had the same problems, just had a L5 S1 fusion
Have you tried gravity boots (i.e. hanging upside down).
Pinching of the L5 nerve causes weakness in the big toe and ankle and pain on the top of the foot that may extend up to the buttocks.
the common peroneal nerve and the tibial nerve:Common Peroneal Nerve, comprised of nerve fibers from L5, S1, S2, and S3.Tibial Nerve comprised of nerve fibers from L4, L5, S1, S2 and S3)