I am new to this website and wanted to see if anyone has had the Percudyn Surgical screws used on them? I had the surgery 2 weeks ago today. I had a total of 4 screws placed at L5S1 and L4L5. I know there is not a lot of info on this procedure since it is still in clinical trials. I am feeling pretty good so far but still sore. Today is my first day without narcotics and I feel ok but I have not done anything too agressive. I think I am heading in the right direction but I am curious to see if anyone else has had the screws longer then me.