No releif from lower back pain for 2 months except in bed, age 83.  Physio no help. xray ct lumber spine january 2012
You have two options remaining. You may go for local injections like Epidural Steroid Injections, Selective Nerve Root Blocks (SNRB) and Facet Joint Injections, Facet Rhizome and Sacroiliac Joint Block Injections. These are given by specialized anesthetists dealing with pain management. If these fail and/or you are apparently healthy to bear an anesthesia (as decided by anesthetist) you may undergo surgery. You consult a spine specialist and/or pain clinic. Do not give hope.