Im not sure where I should post this but I thought this link may be useful.
http://www.chirogeek.com/000_Disc_Anatomy.htm
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-Never had back problems until I injured my back trying to pick up to much weight.
-Had left lower back pain that progressed into left leg tingling, pain, and weakness. Two weeks before surgery developed weakness in right ankle.
-8/18/09 had discectomy on L4/5 for left side broad based herniation.
-10/12/09 had MRI over new and on going pain issues. Surgeon says he sees nothing that would cause my problems and called them "odd".
10/13/09 started physical and massage therapy. Technique in massage therapy relieved some of my sciatic issues.
-11/16/09 weakness is gone in legs, left leg still has some sciatic issues, minor compared to what it was.
-No pain on lower left of back... the surgery side, but pain on lower right back that I never had before surgery, comes and goes sometimes with the hours. Right hip pain if I walk a mile or more, never had that before surgery.