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Forum Name: Neurology Topics

Question: Bad Fall: Nerve Pain in Leg, MRI Results, Questions...


 HorseLove9 - Fri Dec 11, 2009 4:51 pm

I fell off a horse two months ago. Since then I've had swelling where impact was and nerve problems since. It was bearable for a bit, but now I cannot lay on my back without having the right side of my leg go numb, down to my right side of my foot. This also happens with bending, sitting, leaning forward etc (after two months, it finally bothered me riding, I was told to continue after my first doctor visit and just recently can no longer do it). Had MRI done, and my doctor quickly told me "Superimposed disc hernication center out of midline" and something about my L5 S1. Constant tingling, burning bee like sensation that gets worse if in any of those positions, somewhat itchyness sensation that gets worse. What does this all mean?
 Dr.M.Aroon kamath - Fri Dec 18, 2009 8:49 pm

User avatar Hi,

The term "Superimposed" could mean a whole lot of things...
- a L5/S1 disc prolapse "Superimposed" on pre-existing spondylolisthesis,
- a L5/S1 'Extraforaminal lumbar disc herniation' (EFLDH), "Superimposed" on a 'Foraminal lumbar disc herniation' (FLDH) etc.

You probably suffered a a L5/S1 disc prolapse causing compression of the S1 herve root (S1 rediculopathy).

A herniated disc could be
- small or
- large

Could be
- Central or
- Para-central.

Which nerve roots may end up compressed would depend upon
- the disc involved
- size of the prolapsed disc and
- whether it is central or para-central.

Thus a 'paracentral' disc prolapse at for example L5/S1 would usually miss the L5 root, involve the S1 root and spare the roots still within the thecal sac. A central disc prolapse (which is less common), will compress thecal nerve roots. The even rarer lateral disc prolapse may occasionally press on the L5 nerve root.

You must consult an orthopedic surgeon, who would be in a position to offer a plan of management for you after examining you & going through the MRI report.

Best wishes!

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