Just a few more questions!

My Wikipedia reference-linkMRI also showed up the presence of bone spurs at the rear of the vertabra (where the nerve root exits). Just wondering if anyone knows how long these take to grow- I assume they arent something that occur in a matter of months.

The other question is about the annular tear- could it have caused the disc degeneration at L4/5 or is it the other way round- ie the damaged disc became brittle and then tore.

The final question is a minor one- one website recommends sitting on an exercise ball and bouncing gently for 5 mins each day- is this safe? The idea is that this motion will help the discs receive blood and oxygen.

Thanks

chris