Suggest Further Management For Degenerative Bone Disease

MRI results from 4/27/10 female 46 very active, golf, excerise, etc. Degenerative bone disease first C4-5 fusion 24 yrs old, 2nd 5-6 fusion 45 yrs old. MRI stated L4-5 disk desication w/slight loss of disk space height & minimal generalized posterior disk bulge, mild dengenerative facet changed bilaterly. Corresponding posterior ligamentous hypertrophy noted within spinal canal. At L5-S1 there is disk desiccation with significant loss of disk space height, no stenosis or foraminal stenosis. Small posterior midline annular fissure. Impression: Mild degenerative disk disease without evidence of spinal stenosis, forminal stenosis or dir neural impingement. 2) small anular fissure st posterior midline L5-S1. Had anesthia along with steroid injection 16 mths ago. relief for aprox. 12 mths, pain is back worst than ever, standing in one place too long and driving/riding in car sets it off, pain runs down right leg. Ortho surgeon suggest I get discogram, I want to know is that the right way to go. I do yoga, lite weight strenghtening, up to 4 Loritab/ 4 robaxin, meds do not work anymore, tired of taking them. I get a massage every other week, temporary relief, pain comes right back. What do you suggest next step to be?