Re: back pain
Spinal arthritis tends to continue to cause degenerative changes in the joints of the spine as we age. Also, the discs lose moisture as we age which causes them to flatten, resulting in the bones becoming closer together. All this results in spinal nerves getting compressed.
Your accident may have had some effect on these degenerative changes in your spine. Any severe impact tends to cause arthritic changes to develop more quickly than they might have otherwise....
You may have a disc that is bulging or has herniated that is now pressing on a spinal nerve. This can result in pain at the level of the disc or it can radiate at any point down the buttocks, leg and into the foot.
You might want to take a look at the "Back Problems" board where most of us with spine problems hang out!