Good morning Beaker. Having that block is scarry, but not so bad. I think in the long run a good orthopedic specialist may help you more than the injection. If the back isn't the problem, but my walking is, I would be more inclined to check on my walking. I do have trouble with walking too, and I currently see an orthopedic doctor, working on helping my gait. This has helped my back, more than any injection, or other therapy. Just a thought. ginnie