Emeritus

Leonard F. Peltier, M.D.
Professor Emeritus, Orthopaedic Surgery

Leonard F. Peltier, MD, PhD, was an orthopaedic surgeon, academician, administrator, laboratory investigator, historian, and mentor. His career spanned nearly six decades, beginning with graduate education at the University of Minnesota (UM) under the auspices of Owen H. Wangensteen, MD, PhD. In addition to obtaining a PhD in physiology in the UM Graduate School, he completed general and orthopaedic surgery residencies and attained board certification in each specialty. He served in the US Army Occupation Force Medical Corps in Germany just after World War II. In 1957, at 37 years old, he assumed the chairmanship of the orthopaedic training program at the University of Kansas. In 1971, he couldn't resist the opportunity to become one of the founding members of the start-up University of Arizona College of Medicine, accepting an appointment as chair of the new orthopaedic training program, where he remained until his retirement in 1990. He took clinical problems to the laboratory, and made important scientific contributions, particularly in the area of fat embolism and in using calcium sulfate (plaster of Paris) to fill bone defects. He served on governing boards of national professional organizations and presided over the American Association for the Surgery of Trauma from 1980-1981. Throughout his career, he was fascinated by, and published extensively in, the history of medicine arena. Known fondly as the professor tomany of his residents and colleagues, he had a pragmatic, honest, upbeat, and often humorous approach to life's challenges, valuing personal integrity above other virtues. He explored various eclectic interests far beyond his professional contributions while maintaining his family as a central priority. With his exemplary productivity and interests in the surgical and laboratory sciences, history of medicine, appreciation of fine arts, and perceptive and effective interactions with family, friends, patients, and colleagues, the memory of Leonard Peltier evokes the image of a modern-day Renaissance man.

Donald P. Speer, M.D.
Professor Emeritus, Orthopaedic Surgery
Specialty: Pediatric Orthopaedics and Musculoskeletal Tumors

Before retiring, Donald P. Speer, M.D. specialized in Pediatric Orthopedics and Musculoskeletal Oncology.

Donald P. Speer, M.D. earned his undergraduate degree from Stanford University. He graduated from medical school at the University of Southern California at Los Angeles in 1966 and did his internship at the University of California Hospital in Los Angeles. Dr. Speer did his orthopedic residency at the University of Kansas Hospital in Kansas City, Kansas and at the University of Arizona where he was one of the first orthopedic residents at the newly dedicated College of Medicine. He finished his residency in 1973. He is a full professor of Surgery and holds a joint appointment in Anatomy at the University of Arizona College of Medicine.

He spent a year in subspecialty training as a Fellow in Pediatric Orthopedics at the Children's Memorial Hospital, Northwestern University School of Medicine in Chicago under the guidance of Dr. Mihran Tachdjian. Dr. Speer is board certified by the American Board of Orthopedic Surgery. He is a member of the American Academy of Orthopedic Surgeons and a fellow of the American College of Surgeons as well as a member of the prestigious American Orthopedic Association and the Orthopedic Research Society. In addition, he is a member of the Pediatric Orthopedic Society of North America, a professional organization open only to those orthopedic surgeons whose practice consists of at least 75% children.

Dr. Speer was the first fellowship trained pediatric orthopedic surgeon in the state and is one of only three such surgeons in the city today. As an attending physician at both the University of Arizona and at the Children's Clinics for Rehabilitative Services, he treats patients with a wide variety of congenital deformities. He is President of the managing Board of the Children's Clinics for Rehabilitative Services in Tucson. In addition, at several specialized clinics, he sees children with the orthopedic sequelae of cerebral palsy, myelomeningocele and hemophilia.

Dr. Speer's second subspecialty is in the treatment of musculoskeletal tumors, most of which occur in the pediatric age group. He currently has a wide referral base from physicians all over the state of both adults and children. In treating these very complex patients, he works in close conjunction with the pediatric oncology team at the University of Arizona Health Sciences Center and the Arizona Cancer Center.

Dr. Speer has been involved in both basic science and clinical research, giving presentations at national and international meetings on topics ranging from pediatric hip surgery to the pathogenesis of hemophilic arthropathy. He has continued the development and use of calcium sulfate pellets (plaster of Paris) as a bone graft substitute, research that was pioneered by his mentor, Dr. Leonard Peltier. Dr. Speer's research interests include morphogenetic control mechanisms on skeletal development, the biomechanics of the growth plate, collagen fiber architecture of connective tissues, polarized light microscopy assessment of organic molecular organization, and the embryology and mechanisms of congenital musculoskeletal deformities. Dr. Speer has published numerous articles in peer reviewed journals and textbooks. He is the recipient of the John Charnley Award for "original and innovative research, clinical or basic, in diseases of the hip" by The Hip Society, a national organization for orthopedic surgeons for his article, "Experimental Epiphysiolysis: Etiologic Models of Slipped Capital Femoral Epiphysis."

Dr. Speer is very much involved with the medical community outside the University as well, having recently served as the President of the Pima County Medical Society. He is a member of the Tucson Health Care Council.

Robert G. Volz, M.D.
Professor Emeritus, Orthopaedic Surgery

A native of Lincoln, Nebraska, Dr. Volz served as Chairman of the Department of Orthopedic Surgery at The University of Arizona Health Sciences Center from 1985-1992, where he designed some of the earliest artificial joints in the United States, including the first artificial wrist, elbow and knee. The knee he designed has been widely used in the US and abroad. He was co-founder of the Arizona Arthritis Center, a nationally recognized endowed research and teaching center.

Since retiring in 1992, Dr. Volz and his wife, Ann, have volunteered in several foreign countries, including Vietnam, Bhutan, Nepal, Malaysia, Philippines and South Africa. The couple splits their time between Jackson, Wyoming and Tucson, Arizona. They have four children and seven grandchildren.