Physicians of Norton Leatherman Spine Center
The Norton Leatherman Spine Center is one of only a few centers in the United States that features orthopaedic spine surgeons working in tandem with neurosurgeons to provide comprehensive spine care.
 John R. Johnson, M.D.
Board Certified in Orthopaedic Surgery
Dr. Johnson, a native of Pikeville, Kentucky, earned his B.A. from the University of Kentucky, and graduated from the University of Louisville School of Medicine where he also completed his residency training. Dr. Johnson completed two post graduate training programs in spine surgery: one in Louisville under Kenton D. Leatherman, M.D., and one at the University of Toronto under Edward H. Simmons, M.D.
Clinically, Dr. Johnson is a subspecialist in spinal surgery with particular interest in scoliosis treatment; he helped introduce the Cotrel-Dubousset rodding technique to the United States. Dr. Johnson has also achieved national recognition for pacesetting anterior/posterior surgery, and works to constructively narrow the parameters for its use.
Dr. Johnson is co-director of the Norton Hospital Leatherman Spine Center and currently serves as professor and chairman of the Department of Orthopaedic Surgery at the University of Louisville School of Medicine.
Dr. Johnson has been involved in the development of several spinal instrumentation systems that are used worldwide. He has authored multiple journal publications, and has been a guest professor throughout the world making presentations to orthopaedic groups regarding the treatment methods of various spinal disorders. More importantly, he continues to research new rodding techniques and devices to continue to improve the treatment of spinal disorders.
 Steven Glassman, M.D.
Board Certified in Orthopaedic Surgery
Dr. Glassman received his B.A. in chemistry from Princeton University in Princeton, New Jersey. He attended medical school at the College of Physicians and Surgeons of Columbia University in New York, where he graduated with Alpha Omega Alpha honors. He did is general surgery training at Montefiore Medical Center, and subsequently completed his orthopaedic residency training at the New York Orthopaedic Hospital of Columbia University. Dr. Glassman then moved to Louisville, where he finished his training with a spine fellowship at the Leatherman Spine Center.
Dr. Glassman is Professor of Orthopaedic surgery at the University of Louisville. He has held leadership positions in several major national spine societies, serving as Education Council Chair for the Scoliosis Research Society, as 2009 Program Chair for the North American Spine Society, and as Co-Chair of the Professional Society Coalition Task Force on Lumbar Fusion.
Dr. Glassman has also published extensively in major peer reviewed orthopedic and spine journals, including 12 first author publications between 2007 and 2009. The quality of these studies has been recognized with a series of national awards including the Whitecloud Award for Outstanding Clinical Paper at the International Meeting for Advanced Spine Techniques in both 2008 and 2009. He also received a Spine Journal Outstanding Paper Award in 2008, and was co-author of the Spine Journal Editor's Choice Award as the outstanding paper of the year in 2009. Additionally, Dr. Glassman and the Leatherman research group have been recognized with multiple North American Spine Society Outstanding Paper Awards in 2008 and 2009 research.
Dr. Glassman's work has focused on patient based outcomes and cost effectiveness for spinal surgery. He has written extensively on the treatment of adult scoliosis, and on the role of biologics in spine fusion.
 Rolando M. Puno, M.D.
Board Certified in Orthopaedic Surgery
Dr. Puno received his B.S. in Premedical Studies at the University of Santo Tomas and his medical degree at the University of the East. He completed two full Orthopaedic Residency Training Programs at the University of the Philippines and at the University of Louisville. He is fellowship trained in trauma and joint replacement at the Hennepin County Medical Center and in spine surgery at the Twin Cities Scoliosis Center, both in Minneapolis, Minnesota.
Dr. Puno is currently a faculty member of the Leatherman Spine Center and of the University of Louisville's Department of Orthopaedic Surgery, and medical director of the Department's Orthopaedics Biomechanics Laboratory.
Dr. Puno has great interest in the reconstruction of complex spinal deformity for both pediatric and adult patients as well as in degenerative conditions of the spine. He is the principal developer of the world's first poly-axial spinal pedicle screw, currently the industry standard for most spinal fixation implants used around the world. His innovative designs, for which he has been awarded U.S. and European patents, has resulted in the development of anterior inter-body devices and three posterior spinal systems currently in the marketplace, improving treatment methodology of these problems.
Dr. Puno is widely published, with numerous articles in peer-reviewed journals, an author of several book chapters, and a reviewer for the journal "Spine". He is invited to give lectures and demonstrate spine surgery all over the world. He has been awarded a Traveling Fellowship with the Scoliosis Research Society, nominated for the Russell Hibbs Award, and awarded by both the American Orthopaedic Association and the North American Spine Society for his research in Spine Surgery.
 John R. Dimar II, M.D.
Board Certified in Orthopaedic Surgery
Having received his B.A. with honors from Otterbein College in Westerville, Ohio, Dr. Dimar received his medical degree from Wright State University School of Medicine in Dayton, Ohio. His residency training in orthopaedics was completed through the Lutheran Hospital Orthopaedic Residency Program in Fort Wayne, Indiana, followed by a six-month chief resident internship with the Leatherman Spine Center. Dr. Dimar then served in the United States Air Force at the Regional Hospital in Minot, North Dakota, serving as Chief of Surgery and Assistant Chief of Hospital Services. He then returned to Louisville to complete a spine fellowship with the Leatherman Spine Center.
Dr. Dimar is a clinical professor with the Department of Orthopaedic Surgery and Chief Pediatric Orthopaedic surgeon at Kosair Children's Hospital and Director of Resident Basic Science Education at the University of Louisville School of Medicine. He is active in instructing orthopaedic surgeons and residents in the treatment of deformities, tumors, degenerative disease and trauma involving the spine. His particular area of interest is the treatment of cervical spine disease, degenerative spine disease and spine trauma.
Dr. Dimar is actively involved with research. He has published numerous articles and book chapters on the treatment of spinal problems and has spoken widely at many national and international spine meetings.
He is a member of the North American Spine Society, the Scoliosis Research Society and the American Academy of Orthopaedic Surgery in which he has won both best clinical and research paper awards.
 Mitchell J. Campbell, M.D.
Board Certified in Orthopaedic Surgery
Dr. Campbell received his BS in chemistry from Auburn University in Auburn, Alabama and also earned a masters degree in pharmacology/ physiology from Auburn University. He then received his medical degree and completed his residency training in Orthopaedic Surgery at the University of Louisville School of Medicine, graduating in the top percent of his class. From there, Dr. Campbell completed his spine fellowship at the renowned Minnesota Spine Center in Minneapolis, Minnesota.
Dr. Campbell is an assistant clinical professor with the Department of Orthopaedic Surgery at the University of Louisville and is a staff member of the Leatherman Spine Center. He instructs orthopaedic surgeons, residents and fellows in conservative and surgical management of adult and pediatric spinal deformities, tumors, trauma and degenerative conditions.
Dr. Campbell has a great interest in the cervical spine and has focused his research on spinal cord dysfunction and the treatment of myelopathy. As a member of several national spine organizations, Dr. Campbell shares his research findings and surgical experiences with spine surgeons from around the world.
 Mladen Djurasovic, M.D.
Board Certified in Orthopaedic Surgery
Dr. Djurasovic received his B.A. with honors from the University of Pennsylvania in Philadelphia, and went on to complete his medical degree at the College of Physicians and Surgeons at Columbia University in New York. Dr. Djurasovic completed both his internship and residency at Columbia Presbyterian Medical Center, also in New York. He then moved to Louisville, where he finished his training with a fellowship in spine surgery with the Leatherman Spine Center.
Dr. Djurasovic is currently a Clinical Assistant Professor in the Department of Orthopaedic Surgery at the University of Louisville. He is an attending orthopaedic surgeon at Norton Hospital, Kosair Children's Hospital and the University of Louisville Hospital.
Dr. Djurasovic has authored numerous peer-reviewed publications and book chapters on the treatment of various spinal disorders. He has a particular interest in minimally invasive spine surgery. He is a member of the North American Spine Society and the American Academy of Orthopaedic Surgery, as well as a candidate member of the Scoliosis Research Society.
 Charles H. Crawford III, M.D.
Board Eligible in Orthopaedic Surgery
Dr. Crawford is an honor graduate of the University of Kentucky where he received a B.S. in Biology. He then received his medical degree and completed his residency training in orthopaedic surgery at the University of Louisville School of Medicine where he graduated with honors and in the top percent of his class. From there, Dr. Crawford completed his spine fellowship at Washington University in St. Louis, Missouri where he received extensive training in complex adult and pediatric spine surgery.
Dr. Crawford is a member of several professional medical associations, among them, the North American Spine Society, Scoliosis Research Society, American Academy of Orthopaedic Surgeons, Kentucky Orthopaedic Surgeons, and American Medical Association.
Dr. Crawford has published and presented in the fields of orthpaedics, neuroscience and spinal surgery. His clinical areas of interest are Adult and Pediatric Spinal Surgery, Deformity, Scoliosis, Complex Spinal Reconstruction and Degenerative Conditions of Lumbar and Cervical Spine.
Norton Neuroscience Institute Physicians
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