RELEASE ON RECEIPT CONTACT: Marguerite Beck CHARLOTTESVILLE, VA., Sept. 9 -- Bedsores are not a subject likely to be discussed around the dinner table. Yet, each year, approximately two million bedridden patients develop bedsores or pressure ulcers at an estimated cost of $9 billion in medical charges. When vascular and diabetic ulcers are included, the costs are more than five times that amount. In addition, the number of days of lost productivity among people suffering wounds and delayed or ineffective wound healing is greater than for any other health problem in this country. At the University of Virginia, engineers have teamed up with physicians and researchers to tackle this health problem. With the support of a $750,000 grant from the Washington-based Whitaker Foundation, U.Va. has established a Center for Engineering of Wound Prevention and Repair. "Our clinical goal is to eradicate pressure sores, at least in the modern hospital setting," said Tom Skalak, center director. "Our scientific goal is to learn about the mechanisms of healing, not only skin wounds, but also intestinal ulcers, nerve injury and damage from heart disease and stroke -- all the wounds your body has to heal." The center, one of only about a dozen in the country, combines the existing expertise of U.Va.'s Chronic Wound Care Clinic in the Department of Plastic Surgery with new engineering technologies being developed in the Department of Biomedical Engineering. What does engineering have to do with wound prevention? "The body can be viewed as a mechanical structure just like a bridge, except that its mechanical integrity is maintained by a myriad of biochemical reactions," Skalak said. "We are studying how wounds develop and how we can prevent them by analyzing the mechanical and biochemical events involved. For instance, how does a surface load on the outside of the skin affect the underlying blood vessels." Unlike most wound-healing research, which looks at wound management, U.Va.'s center focuses on wound prevention. Using biomedical engineering technology, researchers are designing clinical monitoring devices and laboratory models to understand how wounds develop so that better preventative measures and wound-repair techniques can be developed. The center takes advantage of state-of-the-art tools in engineering and cell biology and combines them with studies of actual wound formation and healing. "We are studying how cells adhere to other cells in the body," Skalak said. "Do they all add up to a properly healed wound with mechanical integrity?" The new program brings together a multidisciplinary team led by seven researchers. Skalak studies arteriolar growth and fluid mechanics of white blood cells. John Thacker, professor of mechanical engineering, is an expert in measuring the mechanical strength of healing skin. J.S. Lee, chairman of biomedical engineering, studies microvascular blood volume control. Klaus Ley specializes in leukocyte cell (white blood cell) attachment, which is essential to wound repair. They join George Rodeheaver, Edlich Professor of Biomedical Research, an expert in wound management; Roy Ogle, assistant professor of cell biology, studying the role of growth factors in healing; and Gerald Mandell, Cheatham Professor of the Sciences, an authority on infection. ### September 8, 1995