First, you need to go to someone else to get the problem taken care of. I had my Surgery from Jesse Dickson in Houston, TX about five years ago. He worked under the doctor that developed the surgery that is currently used to correct scoliosis. He is also known as one of the best around the world. You need to go to someone who is extremely experienced with this surgery. There really is no excuse for a screw falling out. I have had no difficulties and have had three close friends who had the same surgery from Dr. Dickson. Please, take my advice and seek out someone else!!