Dr. Mark Pfaff

William Mackenzie is an Orthopedics provider in Wilmington, Delaware. Dr. Mackenzie is highly rated in 59 conditions, according to our data. His top areas of expertise are Mucopolysaccharidosis Type 4 (MPS IV, Morquio Syndrome), Brachydactyly Mononen Type, Achondroplasia, Osteotomy, and Spinal Fusion.

In addition to my work as a pediatric orthopedic surgeon, the Shands/MacEwen Endowed Chair of Orthopaedic Surgery at Nemours Children’s Hospital, Delaware, and division chief of the Nemours Spine and Scoliosis Center, I help educate the next generation of orthopedic physicians. I am the Clinical Fellowship Director Emeritus for the orthopedics department at Nemours Children’s Hospital, Delaware. I train residents, fellows and visiting observers in advanced spinal deformity techniques. I’m a professor of orthopedic surgery and pediatrics at Sidney Kimmel Medical College of Thomas Jefferson University, and frequently teach and lecture at national and international courses, educational symposia, conferences and other institutions. I am vice president of the Scoliosis Research Society, president of Setting Scoliosis Straight Foundation, a member of the Pediatric Orthopaedic Society of North America and a member of the Medical and Scientific Board of the National Spine Health Foundation. In addition, I have authored more than 200 research articles and 30 book chapters, and serve as a reviewer of four journals. Children are amazing. They just want to get better so they can get back to being kids. I enjoy giving each patient and family the personalized and customized attention they need, and making sure their questions are answered. There’s no template for this kind of care. I’m proud to be at Nemours Children’s Hospital, Delaware. We handle the most complex cases and teach the techniques other people come here to learn to do. Every person in our department is a national leader in his or her field. You couldn’t duplicate a group like this. It’s a real privilege to work with a team this good. Dr. Shah is highly rated in 17 conditions, according to our data. His top areas of expertise are Scoliosis, Kyphosis, Adolescent Idiopathic Scoliosis, Spinal Fusion, and Osteotomy.

Dr. Khaled Kebaish serves as chief of the Spine Division in the Department of Orthopaedic Surgery. He is a professor of orthopaedic surgery and neurological surgery at the Johns Hopkins University School of Medicine. His areas of clinical expertise include spine deformities and scoliosis, degenerative spine disorders, spine tumors and disc arthroplasty. Dr. Kebaish earned his M.D. from Cairo University. He completed his residency at University of Toronto in Toronto, Canada, and performed a fellowship in spinal reconstructive surgery at Johns Hopkins. Dr. Kebaish's research interests include the clinical and functional outcomes of spine surgery with a special focus on adult deformity surgery. He also focuses on the biomechanical testing and evaluation of different fixation devices and techniques in the adult spine. Dr. Kebaish is highly rated in 11 conditions, according to our data. His top areas of expertise are Kyphosis, Lordosis, Scoliosis, Osteotomy, and Spinal Fusion.