Global Spine Outreach

Transforming Children with Complex Spinal Deformities Around the World!

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Our Board of Directors

Anthony S. Rinella, MD

Anthony S. Rinella, MD

Orthopedic Spine Surgeon

GSO Board President

Dr. Rinella is a board-certified, fellowship-trained spine surgeon. His practice is a referral center for complex adult and pediatric procedures, including scoliosis and revision procedures. He has a special interest in the cervical spine, and minimally invasive procedures. Dr. Rinella is the founder of his private practice, Illinois Spine and Scoliosis Center. Dr. Rinella leads GSO’s missions to Cali, Colombia and Chihuahua, Mexico each year, and participates in other spinal missions around the world. Dr. Rinella received the De La Salle Award from Lewis University for “his exceptional dedication to the children of the world afflicted with spinal deformities, and his tireless humanitarian efforts to ease their suffering and offer them lives of hope.” Dr. Rinella received the Walter P. Blount Humanitarian Award in 2013, the highest humanitarian honor awarded by the Scoliosis Research Society. Dr. Rinella is dedicated to educating medical teams world-wide and does so through his medical missions and international lectures. He has published numerous articles on adult and pediatric scoliosis, cervical and lumbar disc replacements, among other topics.


Greg Mundis

Greg Mundis, Jr., MD

Orthopedic Spine Surgeon

GSO Chief Executive Officer

Dr. Mundis specializes in spinal deformities of the cervical, thoracic, and lumbar spine for pediatric and adult patients. These conditions include scoliosis, kyphosis, and sagittal plane deformities. He also has special interest in failed back surgery, helping those who have not seen the relief from their spine interventions and has extensive training in both minimally invasive spine surgery as well traditional reconstructive methods.

Dr. Mundis is heavily involved in research and education. He currently is the co-director of the San Diego Spine Fellowships, which trains two new spine surgeons every year. In addition, he is very active in presenting his research and educating other surgeons in minimally invasive spine surgery and advanced surgical techniques at national and international meetings every year. His research is focused on minimally invasive reconstruction for scoliosis and the treatment of children with severe deformities. He is a member of the International Spine Study Group (ISSG), the largest multicenter study group, dedicated to prospective research relating to adults with spinal deformities.

Dr. Mundis is particularly passionate about his efforts in global outreach. Dr. Mundis takes numerous trips every year to underserved areas around the world. He has the opportunity to operate on children who otherwise would not have access to modern spine care, while also educating the national surgeons to make these surgeries more sustainable over time. Dr. Mundis is frequently joined by his wife and family on these trips as testament to their dedication to serving their community both locally and internationally. Dr. Mundis believes strongly that his patients are an extension of his family. As a father of four children, and the son of a missionary family, he believes that every encounter matters and that all patients deserve to have their story heard.


Jeremy Longhurst

Jeremy Longhurst

Medical Consultant

GSO Board Secretary

Jeremy Longhurst brings more than 20 years of experience in the field of medical education overseeing the development of various medical education organizations in the US, Europe, and Asia. After working in micro-finance in developing nations in the early 1990s, Jeremy moved back to the medical field, and was the Executive Director of various medical societies and foundations in the US and Europe.

In 2000, Jeremy founded BroadWater, Inc. The company provided medical education services through medical meetings, online, and in print. In 2007, BroadWater was acquired by Vertical Health, LLC a medical media company. Jeremy assumed the role of President, Medical Education for VH, and also sat on its Board of Directors. In May, 2013 Jeremy re-acquired BroadWater, and continues to direct its growth.


Pat Kostial, RN, BSN

Pat Kostial, RN, BSN

Physician-Scientist Executive

GSO Board Member

Pat Kostial is a graduate of St. Louis University School of Nursing, Class of ‘81.  She served as Orthopedic Service Coordinator in the operating room at Cardinal Glennon Children’s Hospital from 1985-1987. Pat experienced the transition of spine implants from Harrington rods to the first generation of complex segmental spinal instrumentation. 

Pat accepted the position of Spine Service Coordinator at St. Louis University Dept. of Orthopaedic Surgery under Behrooz A. Akbarnia, MD from 1987-1990 and then as Spine Service Coordinator under the Department of Neuroscience at St. John’s Mercy Medical Center in St. Louis, MO, a level one trauma center, from 1990-2000.  She then rejoined Dr. Akbarnia in San Diego, CA as Nurse Manager at the San Diego Center for Spinal Disorders from 2000-2013.  During that time, Pat also served as a volunteer part-time administrator for both San Diego Spine Foundation (SDSF) and Growing Spine Foundation (GSF until 2012) until she became SDSF’s full-time Executive Director in 2013. 

Having worked extensively with patients and families with Early Onset Scoliosis, Pat has also co-authored Nursing chapters in the 1st and 2nd editions of the textbook “The Growing Spine” as well as the upcoming 3rd Edition, and served as Assistant to the Editor on the second edition.  She continued to serve as both Executive Director and as Fellowship Administrator from 2013-2020. Pat has been an Associate Member of the Scoliosis Research Society since 1995. She and her husband Michael reside on Lake Fork, Texas where Pat works from home and travels to San Diego periodically each year. Pat and Michael are blessed with 9 grandchildren as well as Michael’s 4 children.


Lawrence G. Lenke, MD

Lawrence G. Lenke, MD

Orthopaedic Spine Surgeon

GSO Board Member

Dr. Lenke is the is Professor of Orthopedic Surgery at Columbia University Medical Center College of Physicians and Surgeons, Surgeon-in-Chief at the Spine Hospital at New York-Presbyterian/Allen.

Dr. Lenke is world-renowned for the surgical treatment of pediatric and adult patients with various forms of spinal deformity, with an expertise in the most complex types of cases. He is a leading authority on spinal deformities including scoliosis, kyphosis, flat-back syndrome, high-grade spondylolisthesis, and major truncal imbalances due to various spinal deformities. He is generally regarded as the premier spinal deformity surgeon in the world, having developed the classification system for Adolescent Idiopathic Scoliosis (AIS) to which his name is now attached.

Dr. Lenke was honored with the North American Spine Society’s 2013 Leon Wiltse Award for excellence in leadership and/or clinical research in spine care. He served as President of the Scoliosis Research Society from 2010-2011, the oldest and most prestigious spine society in the world, whose single focus is the advancement of care in patients with spinal deformity and also remains active with the North American Spine Society, the Pediatric Orthopaedic Society of North America, and the American Academy of Orthopedic Surgeons. As a reflection of his preeminent surgical skills, he has hosted over 700 spinal surgeons from around the globe to observe his surgeries in the past 15 years.

Dr. Lenke’s goal has always been to be the top academic spinal deformity surgeon in the world. This internal drive is based on the connection between high-level spinal deformity research and optimizing patient care for those requiring surgery.
Dr. Lenke’s prolific academic career includes writing over 360 published peer-reviewed manuscripts, editing 5 textbooks on Spinal Surgery, writing more than 125 textbook chapters, chairing over 100 Spinal Surgery meetings and having been an invited Visiting Professor domestically and internationally over 100 times. Dr. Lenke has also served as chairman at over 80 spinal surgery courses worldwide leading to innovative treatments for his patients and many others globally. Dr. Lenke can offer the latest and safest techniques for surgical correction of even the most severe spinal deformities.


John Mikulski

John Mikulski

JMI President

GSO Board Member

John Mikulski is a Business Owner/Importer with over 30 years of business experience focusing on strong, productive relationships. He has a keen insight for creating connections and orchestrating partnerships. John has a thorough knowledge of importing and conducting business in a global economy. His work ethic and energy fills an important role on the GSO board. He works tirelessly to create alliances between private corporations and Global Spine Outreach. His understanding of diverse business transactions allows him to help both groups to realize their objectives and create valuable relationships.


Josh Sandberg

Josh Sandberg

Ortho Spine Partners President, CEO

GSO Board Member

Josh Sandberg has been consulting in the musculoskeletal industry since 2004. Throughout this time, he has had a positive impact on his clients’ businesses, transforming them into the enterprises they were meant to be. Josh has keen insight into which people will be the best fit for his clients. This wisdom comes from a deep understanding of how candidates will merge with a company’s culture and operational nuances. Josh’s experience as an executive in a start-up business has given him the ability to understand what is takes to thrive in a hands-on environment, where desire and dedication are paramount to success.

In 2010, Josh co-founded Ortho Spine Companies, which is the parent company of Ortho Spine Distributors (OSD), Surg.io and Ortho Spine Partners (OSP). OSD is a searchable database that helps ease the frustration of finding orthopedic distributors throughout the country. Surg.io is the ultimate distributor toolkit that offers the means necessary to build the foundation of a scalable and high-functioning sales organization. OSP is an end-to-end solution that helps companies approach the global market in a cost-efficient way. Our team has hundreds of years of experience and can help you navigate the many challenges inherent in bringing new technologies to market.


Burt Yaszay, MD, FDOA

Burt Yaszay, MD, FDOA

Orthopedic Spine Surgeon

GSO Board Member

Dr. Burt Yaszay is a pediatric orthopedic surgeon at Rady Children's Hospital-San Diego and an associate clinical professor at UC San Diego School of Medicine. After studying biochemistry and cell biology at UC San Diego, he attended Stanford Medical School. Dr. Yaszay went on to complete his residency at the University of Washington and a fellowship at New York University/Hospital for Joint Diseases.

In his practice, Dr. Yaszay treats scoliosis, including early onset scoliosis, and traumatic injuries. His clinical research investigates scoliosis, including the growing rod operation to treat the condition, and using electronic medical records to improve care.

Dr. Yaszay is a member of numerous professional organizations, including the American Academy of Orthopaedic Surgeons, American Orthopaedic Association, American Medical Association, Pediatric Orthopaedic Society of North America, and Scoliosis Research Society.

In addition to medicine, Dr. Yaszay enjoys wine and fantasy football.