Christopher Robert Hydorn, MD

Bradley P. Presnal, MD, received his medical degree from the Texas A&M University College of Medicine in College Station. He completed his internship and residency with the University of South Carolina School of Medicine/Prisma Health in Columbia, and a fellowship in adult reconstructive surgery at the Florida Knee and Orthopedic Centers in Clearwater. Dr. Presnal is board certified by the American Board of Orthopaedic Surgery, is a fellow with the American Academy of Orthopaedic Surgeons and a member of the American Association of Hip and Knee Surgeons. His specialties and clinical interests include hip replacement surgery, knee replacement surgery, revision total hip surgery and revision total knee surgery.

Dr. Horan loves Pediatric Orthopaedics! He feels he was destined to care of children and their injuries. While working on an engineering project in college in the early 1990's, he had the opportunity to work with a group of Pediatric Orthopaedists on a Motion Analysis project for children with cerebral palsy and found that this field was his calling. Although he had planned to be a Mechanical Engineer, he rerouted his education with his sights set on becoming a Pediatric Orthopaedic Surgeon. He graduated with a BS in Mechanical Engineering from Clemson University and followed that with a graduate Master of Science degree in Bioengineering and Biomechanics, also from Clemson. He then worked as a Product Development Engineer for Stryker Spine in Allendale, New Jersey where he developed a Posterior Cervical Fixation System, OASYS, which resulted in multiple US Patents and has been used regularly throughout the world in thousands of patients over the past 20+ years. He next obtained his medical degree at Medical University of South Carolina in Charleston. He completed his internship and residency in Orthopaedic Surgery at the University of Kentucky in Lexington and completed a fellowship in Pediatric Orthopedics and Spinal Deformity at Columbia University in New York City. Dr. Horan is board certified by the American Board of Orthopaedic Surgery and is a Fellow of the American Academy of Orthopaedic Surgeons (AAOS), the Pediatric Orthopaedic Society of North America (POSNA) , the American Academy of Pediatrics (AAP) , the Southern Orthopaedic Association (SOA), and the South Carolina Orthopaedic Association (SCOA) and a candidate with the Scoliosis Research Society (SRS). Currently, he serves as a member of the Board of Counselors with the AAOS and travels to Capitol Hill to lobby for Orthopaedic Surgeons, reduced costs for patients, and timely access to medical care by reducing the hurdles to prior authorization. He serves on several committees with the above organizations including the Pediatric Orthopaedic Global Outreach Committee with POSNA and the SRS Nonoperative Treatment for Scoliosis Committee. He is a representative to the Board of Directors for the Southern Orthopaedic Association and is a member of the Board of Directors as well as the Orthopaedic Director for the nonprofit Medical Mission Ecuador Surgical Mission. He serves as a clinical assistant professor with the University of South Carolina School of Medicine and teaches medical students and residents Pediatric Orthopaedic Surgery. His research interests included peer reviewed published works on Vitamin D deficiency in Pediatric Orthopaedics as well as textbook chapters, journal articles, and speaking presentations on Pediatric Orthopaedics. Since 2009, Dr. Horan has been a member of the Medical Mission Ecuador, traveling to Ambato Ecuador annually to provide free medical care and Orthopaedic Surgery to children in underserved areas. He now directs the Orthopaedic Surgery team for the mission and organizes the travel and planning for a 80 member team from the United States. Learn more about the mission here: www.medicalmissionecuador.org His specialties and clinical interests include all facets of pediatric orthopedics and children's trauma including sprains and fractures, hand anomalies, spinal deformity, early onset scoliosis and scoliosis casting, growth friendly spinal surgery including Magec Rods, spinal tethering, and traditional growing rods. You can usually find Dr. Horan at all Clemson home football events proudly wearing his Orange and cheering on the Tigers!

John J. Walsh IV, MD, is a fellowship-trained orthopedic surgeon at Prisma Health and Clinical Professor of orthopedic surgery at the University of South Carolina School of Medicine in Columbia. Dr. Walsh previously served as clinic director and staff orthopedic surgeon at Moncrief Army Community Hospital at Fort Jackson in Columbia, South Carolina. He received his bachelor's degree with a major in biology from the University of Delaware in Newark and his medical degree from Jefferson Medical College in Philadelphia. He completed an orthopedic surgery residency and a transitional internship at Dwight David Eisenhower Army Medical Center at Fort Gordon, Georgia, and completed his fellowship in hand surgery at the Mayo Clinic in Rochester, Minnesota. Dr. Walsh is board-certified in orthopedic surgery and has a certificate of added qualification in surgery of the hand. He has lectured internationally on a broad range of general orthopedic and upper extremity surgical conditions. He is a member of the American Society for Surgery of the Hand and the Christian Medical Society. His primary interests are hand and upper extremity surgery, sports injuries of the hand, complex multitrauma of the upper limb, and reconstructive osteotomies for bone deformity. He is also interested in reconstruction for brachial plexus injuries.