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Mount Sinai Spine Center
5 East 98th Street, 4th floor
New York, NY 10029

Mount Sinai Doctors Manhasset
1155 Northern Boulevard,
3rd Floor, Suite 300
Manhasset, NY 11030

Dr. Baron Lonner; Professor of Orthopaedic Surgery, Mount Sinai Medical Center


Dr. Lonner is a Professor of Orthopaedic Surgery and attending Spine Surgeon at Mount Sinai Medical Center, NYC. He attended the prestigious, accelerated 6-year Medical Program at Boston University. He completed his general surgery internship at Mount Sinai Hospital and then his Orthopaedic Surgery training at Montefiore Medical Center and his Scoliosis and Spine Surgery training at the Hospital for Special Surgery. Dr. Lonner has been a Professor of Orthopaedic Surgery at NYU School of Medicine from 2010 until his move to Beth Israel Hospital in 2013 and is now a full Professor of Orthopaedic Surgery at the Mount Sinai School of Medicine.

Dr. Lonner has been in practice for 20 years. He is one of the leading scoliosis and spinal curvature surgeons in NYC and the surrounding region with an international reputation for his excellence in this area including pediatric and adult patient populations. He has been an innovator and leader in the area of minimally invasive thoracoscopic scoliosis surgery for which patients have travelled to see him from around the world. He is now beginning a focus in fusionless, motion and growth-preserving tethering procedures also done from a minimally invasive approach. He has been consistently voted to be a “Best Doctor,” “Top Doctor,” and “Super Doctor” as published in local and national print media.


He has done numerous television media spots over the years, focusing on his innovative scoliosis work. Dr. Lonner’s guiding principles in his clinical work include a patient-centered, customized approach based on patient and family goals and needs. His research focus has been on patient outcomes and improvement in quality and safety in the spinal curvatures arena. Dr. Lonner has been involved in the development of spinal implants used in scoliosis surgery, improving the tools used to treat patients afflicted with these conditions. He recently received the prestigious Andrew Swanson Spine Award at the Hospital for Special Surgery, NYC for his contributions to clinical care, research, teaching, and philanthropic efforts in spine surgery.

Dr. Lonner has enjoyed his role as a teacher over the years and has trained and educated dozens of Spine Surgery fellows from around the world and nearly 100 residents in institutions around NYC. He has been a visiting professor and lecturer at dozens of institutions around the world. He is a co-editor on a textbook on Spinal Curvatures Surgery and has written numerous chapters for textbooks on spine surgery.


Dr. Lonner has been an active researcher throughout his career. He has used his research as a vehicle for better understanding the patient with spinal curvatures, answering clinical questions, and improving outcomes. He has co-authored over 100 original scientific papers. His research has been nominated and awarded the prestigious Russel Hibbs award on several occasions by the important Scoliosis Research Society (SRS), an organization that fosters the optimal care of the patient with spinal curvatures that has impacted the care of millions of patients, globally. He is a leader in this society, currently serving on its Board, and having chaired a number of committees and participated in numerous others including special task forces such as the Risk Stratification Taskforce, currently a major initiative for the society which will have profound

impact on patient care in the decades ahead. He has been the principal investigator on three prospective research studies, two of which were randomized, controlled trials. One study was on the use of antibiotics following adult spinal surgery, a second was for the evaluation of the role of antifibrinolytic drugs to reduce blood loss in pediatric scoliosis surgery, and the third was on the surgical treatment of Scheuermann kyphosis, a pediatric and adult spinal curvatures condition. Dr. Lonner is the principal investigator on three additional ongoing prospective studies: the psychological impact of scoliosis and its treatment on the pediatric and adult patient, return to sports after adolescent idiopathic scoliosis surgery, and patient generated index (outcomes) assessment. Dr. Lonner is a board member of the Setting Scoliosis Straight Foundation which is the umbrella organization for a major scoliosis research group responsible for hundreds of publications that include research that has led the way to improvements in the surgical treatment of the scoliosis patient, globally. Dr. Lonner has received over $100 thousand in research grants for his work.

Finally, one of Dr. Lonner’s most cherished areas of pursuit are his philanthropic efforts in West Africa, the Carribean, and the Middle East in which he has performed nearly one hundred operations on 16 separate trips to various countries on surgical missions focused on the treatment of severe spinal curvatures in children. One of the most important aspects of these philanthropic missions has been the transmission of knowledge and skills to local surgeons so that care can be extended to thousands of patients in these underserved regions.

Dr. Lonner and his team are leading the pursuit of fusionless techniques and patient centered approaches to care.

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