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Pathologic Fracture Program

Cancerous tumors in the bone can cause that bone to erode and become weakened, making it susceptible to pathological fractures. Pathological fractures require treatment that can be quite different from that of a normal fracture, and the typical healing process in these patients can vary due to other treatments they are undergoing for their cancer such as radiation and chemotherapy.

Patients with pathological fractures are a unique population that presents a challenge for medical and surgical treatment. In these circumstances, it is imperative that the correct diagnosis and treatment be rendered by a team experienced in these unique types of fractures. The Virginia G. Piper Cancer Center at Scottsdale Healthcare is pleased to offer specialized treatment to these patients through its Pathologic Fracture Program.

This is the only program in Arizona dedicated to treating orthopedic oncology patients and our surgeons, Matthew Seidel, MD and Judd Cummings, MD are board-certified orthopedic surgeons who are both fellowship-trained in orthopedic oncology. Through the partnership with the Virginia G. Piper Cancer Center, patients will also have access to a full spectrum of world-class patient care and support services.

For more information, please contact our Cancer Care Coordinators at 480-323-1255, toll free at 1-877-273-3639 or


Our Surgeons

Matthew J. Seidel, MD

Medical Director

Dr. Seidel is Medical Director of Orthopedic Oncology at the Virginia G. Piper Cancer Center at Scottsdale Healthcare. He is a board-certified, fellowship-trained orthopedic surgeon specializing in the surgical treatment of adult and pediatric patients with cancers or the bones and soft tissues of the pelvis and limbs.

A native Phoenician, Dr. Seidel earned his medical degree from the Ohio State University College of Medicine, and spent two years in Columbus, Ohio where he was chosen as one of a few students to complete their third and fourth clinical years at the prestigious Cleveland Clinic. While at Ohio State, Dr. Seidel was twice awarded the Roessler research fellowship for research exploring new anesthetics for cardiac surgery.

Following medical school, Dr. Seidel completed his orthopedic surgery training locally at the Phoenix Orthopaedic Residency program based out of Maricopa County Hospital, the Phoenix VA Hospital, and Children's Rehabilitation Services Clinic. In addition to the extensive experience in orthopedic trauma, Dr. Seidel developed special interests in musculoskeletal oncology, as well as joint replacement surgery.

In 2005, Dr. Seidel completed a one-year Musculoskeletal Oncology fellowship at M.D. Anderson Cancer Center in Houston, Texas. The primary focus of his training was the surgical treatment of adult and pediatric patients with cancers arising in the bones and soft tissues of the pelvis and limbs, and the treatment of skeletal metastatic disease. An important part of this training involved limb salvage surgery and major joint and limb reconstruction, and during this fellowship, he completed two major research projects concerning cancerous cartilage tumors, and presented them both at national orthopedic meetings.

Dr. Seidel is board-certified by the American Board of Orthopedic Surgery (ABOS) and a fellow of the American Association of Orthopedic Surgeons (AAOS). He is a member of the Arizona Medical Society, the Connective Tissue Oncology Society and the Musculoskeletal Tumor Society.


Judd Cummings, MD

Dr. Cummings is a board-certified, fellowship-trained orthopedic surgeon specializing in musculoskeletal tumors, adult and pediatric limb salvage surgery, and joint replacements.

Originally from Salt Lake City, Utah, Dr. Cummings attended college at Brigham Young University where he was a Hinckley scholar. Following graduation, he attended medical school at Creighton University where he graduated with Magna Cum Laude honors and as a member of the prestigious Alpha Omega Alpha Medical Honor Society.

Dr. Cummings went on to complete his orthopedic surgery residency at the world-renowned Campbell Clinic in Memphis, Tennessee, where he was elected Chief Resident prior to graduation. Dr. Cummings also had the unique opportunity of training at St. Jude Children’s Hospital gaining broad exposure to pediatric sarcoma surgery.

In 2007, Dr. Cummings returned to Salt Lake City to complete a Musculoskeletal Oncology Fellowship at the University of Utah / Huntsman Cancer Center, where he gained extensive experience in the diagnosis and management of benign and malignant bone and soft tissue tumors. He conducted both basic science and clinical research resulting in numerous peer-reviewed publications and presentations nationally and internationally. Most recently, Dr. Cummings practiced for several years in Indiana serving as an Assistant Professor of Orthopedic Surgery within the Indiana University School of Medicine.

Dr. Cummings’ ongoing research interests include utilization of large structural allografts, the use of compliant fixation for mega-endoprothestics, and development of novel therapeutic strategies for malignant bone tumors, and his clinical expertise includes the diagnosis and management of primary or metastatic bone and soft tissue tumors or tumor-like conditions and major joint or limb reconstruction.

He is board certified by the American Board of Orthopedic Surgery (ABOS), a fellow of the American Academy of Orthopedic Surgeons (AAOS), a member of the Connective Tissue Oncology Society (CTOS) and a candidate member of the Musculoskeletal Tumor Society (MSTS).