Hello, I am a 38 yr old male w/ lumbar spinal stenosis, both foraminal and central canal areas at L5-S1,L4-L5, and L3-L4. I am very active and would obviosly like to stay that way. I did get a minimally invasive hemi laminectomy at all levels noted on 2/08. I am just starting to get pain now after ~ 3 yrs. My question... If things progress is my only option fusion and if so can you still be fairly active after getting a fusion?