Spine: Over 700,000 vertebral compression fractures - broken spinal bones - occur annually in the United States. Many of these fractures result from untreated osteoporosis, and vertebral fractures can cause severe pain for nearly a third of people with the condition. On Wednesday, June 7, Marshfield Clinic physicians on staff at Saint Joseph's Hospital will discuss a leading surgical treatment for spinal compression fractures called percutaneous vertebroplasty. The program, featuring a pre-taped surgery of a vertebral compression fracture patient, will be webcast from 4 - 5 p.m. central standard time.