I have had severe back pain and numbness into my right leg and foot. An MRI showed a bulge at L4-L5 and slightly more at L5-S1. I'm being seen by an orthopedic specialist who sent me through a series of injections (epidurals) to L4-L5 and L5-S1. These injections provided some relief, but only temporarily. Now he recommends a Myelogram and CT scan to pin-point that area causing the pain more precisely. I though the MRI should have been enough.:(