My sister in law is due in a few weeks, she had osteomalitis(bone infection) in her hip and had to have her bone fused to her hip(like glued on) she also has back problems.
She was going to get a c-section(she cant get an epidural) and so they would have done local anethesia (putting you to sleep) and injecting a local freezing at the site of incision. She is thinking about having it vag now depending on the size of the baby and the labor pain.....
The dr informed her though that she is not to eat 8-12 hours before labor in case of emergency section which may arise buit besides that she was told there are other pain reliever she can have..
Reserach as much as you can weigh out the pros and the cons you may not be able to have an epi so make a back up plan for pain relief..
Best of luck