i am set to have surgery on june 4th.i am having alif with L4/5 and L5/sl posterior laminectomy with pedicle instrumentation and allograft fusion. i had a laminectomy, discectomy and fusion done in nov.2007.the arthritis keeps causing problems so hopefully this works this time. i need advice on what to expect for recovery. i will be cut front and back this time and i want to know how much worse it is from just being cut in the back.any advice would be appreciated thank you nancy