 If you are in Phase 1 Group 2, Phase 2 Group 3, or Phase 2 Group 4, the kyphoplasty procedure will be done next. A small balloon will be placed into the area in your back where the tumor is located. Fluid will then be pumped through the tube in order to fill the balloon, which will create a hole in the back bone. After the balloon is deflated closed and removed, this hole will then be filled with cement. X-rays will be used to help place the cement safely. 