Kyphon Balloon Kyphoplasty is a procedure used to treat certain fractures in vertebrae, or bones of the spine.The fractures treated by Kyphon Balloon Kyphoplasty are compression fractures. These fractures usually occur in bones weakened by osteoporosis (a thinning of the bones) or a tumor. In compression fractures, the solid section of bone known as the vertebral body collapses. These fractures are not only painful, but they may put harmful pressure on the nearby nerve roots or on the spinal cord itself. A kyphoplasty treats these fractures by making space in the bone that was lost when the bone collapsed, then filling that space with a solid, cement-like mixture.