Dr. William Abdu performed a spinal fusion on L4 and L5 in my lower back last September (2012). The results are totally astonishing! I had spinal stenosis and spondylolisthesis. After three years of being in horrendous pain with sciatica, living on vicodin and having nine epidural steroid injections, I am now totally pain free and only occasionally take tylenol - for other minor body aches. I also followed all post-surgical instructions I highly recommend this wonderful amazingly skilled surgeon.