Vitamin C deficiency is involved in the cause and progression of most chronic back problems like pain, sciatica and spinal stenosis, osteoarthritis,  bone spurs, Spondylotishesis, etc

Sciatica, Herniation and Osteoarthritis

Long-term deficiency of vitamin C causes weak spinal discs. Without enough vitamin C the body can't  make collagen. Collagen is like a protein glue that holds cells together. When the cells of the cartilaginous intervertebral discs are not holding together the disks degenerate, rupture and/or herniate. Since most your body weight is carried by your back, when you flex and move, the discs which are weak and worn down cause the bones to compress the nerves emerging from the sides. This often results in back and leg pain called sciatica. 

Inadequate vitamin C also causes the cushioning cartilage in your joints to deteriorate, roughen and wear thin. As the cartilage degenerates, bone scrapes on bone with each movement.  This is osteoarthritis.

In absence of cartilage padding, bone may begin to grow (spurs) in the joints of the spine. This may be your body's attempt to brace up and splint the vertebrae to limit the movement that is causing pain. Unfortunately Bone Spurs can narrow the spinal canal and painfully squeeze the cord in the center.

Furthermore, without enough vitamin C to maintain their strength ligaments can degenerate thicken and lose their elasticity this may narrow the spinal canal if discs and ligaments are especially weak the lower back / lumbar vertebrae can slide over each other and squish nerves.

All of the above conditions have a common causal factor- inadequate vitamin c! The good news is that all these conditions can all be significantly helped by administration of large quantities of the nutrient via a simple IV in the clinic. 

References:

Orthomolecular Med, 2007. Vol 22, No 1, p 31-38.

Doctor yourself, Andrew Saul, PhD 

Hidden in plain sight: The pioneering work of Fedrick R Klenner, MD 

Smith, LH. Clinical guide to the use of vitamin C: The clinical experiences of Frederick R. Klenner, M.D.

Abstracts of Dr. Frederick R. Klenner, M.D. 's published and unpublished work. ISBN 0-943685-01-X. Reprinted 1991, ISBN 0-943685-13-3.