Question
Having L & C back pain, periph neurop left foot, also just diagnosed w/ slight foot drop.  HX: 20 yrs p/o spinal fusion for >45 deg curvature (scoliosis).  Had Herrington Rod removed x 10 yr.  Recent MRI showed:
Transitional vertebrae @ L5.  Left hemisacralization at this level.  There is degenerative disc desiccation at all levels, worse at L4/5.  There is abnormal bone density that is posterior to the thecal sac at the levels of L3/4 & L4/5.  This may represent previous posterior bone fusion. Please correlate clinically. There are no focal disc protrusions.  The patient does have a small asymmetric disc bulge toward the left side at L4/5/.  There is also some mile bilateral facet joint hypertrophy at this level.  The Combination of the dis bulge and facet joint arthrosis does create moderate left neural foraminal stenosis.  The spinal canal and right neural foramen are patent at this level.  Remainder of spinal canal and n. foramina are also patent w/ no other bulges and no focal disc protrusions.  The conus is normal.
Ok.........What exactly does this mean?  And is this something that can be truly helped w/ physical therapy of some sorts?  Any thoughts would be appreciated.
Thanks in advance.

Answer
To put it in very simple terms, your spine has undergone some physical changes that have caused narrowing of the area where your nerve exits the spinal column, especially at the L4/5 level. Since I am a big proponent of manual therapy and physical medicine, I would always suggest you try going that route before exploring other more invasive options. However, since your case is a bit more complicated because you had a considerable lateral curvature of your spine along with a major surgery, I would suggest you consult with a physical medicine specialist as well as a spine surgeon to discuss all your options.