How many gymnasts have extra lumbar vertebrae?

I have an extra vertebrae. A while back I started having severe Back pain when i would do gymnastics. I wen to see an orthopedic surgeon, and with x-rays, I discovered that I had and extra lumbar vertebrae that had some articulation with my pelvis. I took a few months out because the pain was so great sometimes that I couldn't get out of bed for hours. I went back again and the pain returned, and again I took time out, finally I am going back again, I refuse to give up. There is no way to fix it. I do alot of home conditioning to strengthen my core muscles (abs) This helps because, especially when landing, to take the stress off of the lower back. Hope this helps.