Nana Sarpong, MD, MBA

Roshan P. Shah, MD, JD, specializes in hip and knee reconstruction using minimally invasive techniques for less pain and faster recovery times. He believes there are many valuable pain-relieving treatments that do not involve surgery. When an operation is needed, he embraces careful surgical techniques with attention to the biological, anatomical, and mechanical restoration that is critical for a pain-free return of function. Dr. Shah has a particular interest in complex primary and revision hip and knee replacements, as well as associated fractures and infections. As Director of Complex Adult Hip and Knee Reconstruction at Columbia University, he has reconstructed failed total hips and knees using sophisticated techniques and technologies. He has successfully treated patients from across the United States and neighboring countries, finding solutions to problems that stump others. Dr. Shah has made several contributions to research, having published 40 peer-reviewed articles, textbook chapters, and editorials, in addition to giving more than 30 scientific presentations. He served as editor of the University of Pennsylvania Orthopaedic Journal and the Yale Journal of Health Law, Policy, and Ethics. He was also an associate editor for the Stanford Law and Policy Review. Dr. Shah has been honored with multiple research awards, including 1st place at the Orthopaedic Research and Education Fund/Orthopaedic Research Society symposium, 2nd place at the Philadelphia Orthopaedic Society for Sports Medicine Research Symposium, the AO Kathryn Cramer Award, and the University of Pennsylvania Orthopaedic Journal Resident Recognition Award. He holds one provisional patent application for a patient safety device innovation. As a former Washington health policy fellow for both the American Academy of Orthopaedic Surgeons, and the American Association of Hip and Knee Surgeons, Dr. Shah continues to advocate for policies that serve patients, improve access to care, and support research and innovation. He was invited to speak on FDA regulatory issues and innovation within the field of orthopedic surgery at a meeting in Washington, D.C. A native of Camden, New York, he earned his B.A. in Chemistry from Dartmouth College, with additional concentrations in philosophy and public policy. He received his doctor of medicine degree from Yale University and his juris doctor degree from Stanford University. He was a resident in orthopedic surgery at the University of Pennsylvania, where he received the DeForest Willard Award for outstanding performance as an orthopedic senior resident and the Marvin E. Steinberg, MD Award in Adult Reconstruction for outstanding work in the field of adult reconstruction surgery. He also completed a post-doctoral research fellowship (in the field of tissue engineering for orthopaedic surgery applications) at the McKay Orthopaedic Research Laboratory. Before joining ColumbiaDoctors, he completed a fellowship in Adult Hip and Knee Reconstruction at Rush University. Additionally, he has travelled to Wrightington, England to study advanced principles of the hip at the Charnley Centre for Hip Surgery.

Lauren H. Redler, MD, specializes in operative and non-operative treatment of sports medicine injuries in pediatric, adolescent and adult patients. She utilizes advanced, minimally invasive arthroscopic surgical techniques to repair sports-related of injuries of the shoulder, elbow, and knee. She is committed to providing the highest quality medical care to achieve the best possible outcomes for her patients. As a former Division I college athlete she understands firsthand the athlete’s desire to recover quickly so they can get back in the game. Dr. Redler earned her undergraduate degree while playing 4 years of varsity lacrosse at nationally ranked Georgetown University, and completed her medical school training at Georgetown University School of Medicine. Her Orthopedic Surgery residency was completed at Columbia University Medical Center where she served as Administrative Chief Resident in her final year. She went on to complete two orthopedic subspecialty fellowships: one in Sports Medicine at Hospital for Special Surgery and the other in Pediatric Sports Medicine at Boston Children’s Hospital. The recipient of several awards for outstanding research in the field of Sports Medicine, Dr. Redler continues to engage in rigorous research as she strives to further our understanding of pediatric ACL tears, injury prevention and performance enhancement, patellar instability, and shoulder conditions, such as glenohumeral instability, and improve their outcomes. She lives in Manhattan with her husband, Mike. In her spare time, Dr. Redler enjoys running and being active. She has completed the Philadelphia, New York City, Marine Corps, and Chicago Marathons.

Bonnie Y. Chien, MD, is an orthopedic surgeon specializing in operative and non-operative treatment of foot and ankle conditions from young adolescent to adult patients. Dr. Chien’s expertise focuses on refined surgical techniques that address various foot, ankle, heel, and toe conditions. Her practice leverages minimally invasive techniques ranging from foot and ankle reconstruction to bunion corrections. Dr. Chien grew up in Taipei, Taiwan, and earned her undergraduate and medical degrees at Stanford University. She completed her Orthopedic Surgery residency at Harvard, where she served in numerous education leadership roles both in residency and on a national level. Dr. Chien received the Resident Executive Committee Award from the Harvard Combined Orthopaedic Residency Program (HCORP) and completed her orthopedic subspecialty fellowship in foot and ankle at the Institute for Foot and Ankle Reconstruction at Mercy Medical Center in Baltimore, Maryland. In addition to her clinical practice, Dr. Chien is active in academic research, publishing many articles, abstracts, and book chapters on ankle fractures, the management of diabetic feet, infection prevention, and total ankle replacement. As more advanced techniques in reconstruction evolve, she hopes to focus on studying if newer technologies, such as advances in implants, make a difference and are cost-effective. Dr. Chien is an active member of the American Orthopedic Foot and Ankle Society (AOFAS), the Ruth Jackson Orthopedic Society (RJOS), the American Academy of Orthopedic Surgeons (AAOS), the American Medical Association (AMA), and serves as a representative for the Health Policy Committee. Dr. Chien enjoys global exchange in orthopedic foot and surgery and has traveled internationally to Colombia, Malawi, and India to teach and perform surgeries. Dr. Chien speaks conversational Spanish and is fluent in Chinese in addition to English. With her upbringing abroad and exposure to other parts of the world, she is passionate about learning different cultures and languages and connecting with a diverse patient population in and around New York.