Scientific Advisory Board

Jess H. Lonner, MD | Prof. Johan Bellemans, MD | Brian Hamlin, MD | Fred Picard, MD | S. David Stulberg, MD |

Jess H. Lonner, MD
Dr. Lonner is a member of the Rothman Institute and Associate Professor of Orthopaedic Surgery at Thomas Jefferson University, based in Philadelphia, PA. He was previously the Director of Knee Replacement Surgery, the Total Joint Arthroplasty Fellowship and Orthopaedic Research at Pennsylvania Hospital. His areas of expertise include partial and total knee replacement surgery, and as one of the first surgeons in the United States to use robotic technology for unicompartmental and bicompartmental knee replacement surgery, he has been a key innovator in this area.

Dr. Lonner belongs to many professional associations including the American Academy of Orthopaedic Surgeons, the American Association of Hip and Knee Surgeons and the Pennsylvania Orthopaedic Society. He currently serves on the Governing Boards of The Knee Society and the Philadelphia Orthopaedic Society, serving as the President of the latter in 2010-2011. He has authored nearly 200 peer reviewed scientific publications and chapters, and published several prominent textbooks on knee replacement surgery. He serves on the editorial boards of several Orthopaedic journals, such as Journal of Arthroplasty, American Journal of Orthopedics, Seminars in Arthroplasty, and was former Editor-in-Chief of Techniques in Knee Surgery. He is a co-designer of several innovative partial and total knee replacements. Dr. Lonner has been the recipient of numerous citations and awards for his clinical, research and educational work.

He earned his Medical Degree from Boston University School of Medicine and completed his Orthopaedic Surgical Residency at The Hospital for Joint Diseases in New York, NY. He earned his Knee Arthroplasty/Reconstruction Fellowship at Massachusetts General Hospital/Harvard Medical School and New England Baptist Hospital in Boston, MA.


Prof. Johan Bellemans, MD, PhD
Professor Johan Bellemans is professor of orthopaedic surgery at the Catholic University Leuven, Belgium, and chairman of the Department of Orthoaedic Surgery and Traumatology at the Catholic University Hospitals Leuven and Pellenberg, Belgium. His practice is exclusively dedicated to knee and sports-related pathology.

Professor Bellemans has been involved in the development of several innovations in the field of knee arthroplasty, ligament surgery, and arthroscopy. He has published over 130 peer-reviewed papers and has lectured over the whole world.

Professor Bellemans is founding president of the Belgian Knee Society and member of the American Knee Society.


Brian Hamlin, MD
Dr. Brian Hamlin is a board-certified orthopaedic surgeon and Associate Director of the Bone and Joint Center of Magee-Womens Hospital of UPMC. He specializes in the treatment of diseases of the hip and knee. Dr. Hamlin has a developed expertise in the use of computer assisted surgical systems, and advanced robotic surgical systems for treatment of unicompartmental knee replacement.

Dr. Hamlin has published and presented numerous research projects in relation to the advancement of knowledge in the field of joint replacement including examination of new technologies, minimally invasive procedures, and long-term survivorship of implants. He has been recognized nationally as a Leadership Fellow with the American Academy of Orthopaedic Surgeons and is a member of the American Orthopaedic Association.

A graduate of Washington and Jefferson College, and The University of Texas-Southwestern Medical School at Dallas, Dr. Hamlin completed his internship and residency training in orthopaedic surgery at the Mayo Clinic in Rochester, MN. After his military obligation he pursued a fellowship in Adult Reconstruction at Virginia Commonwealth University School of Medicine. He is a Fellow of the American Academy of Orthopaedic Surgeons and a member of American Association of Hip and Knee Surgeons.


Fred Picard, MD
The basic research of Dr. Picard and his colleagues at the University of Grenoble in the nineties have been the fundamentals for the technical constructions of the first routine CT-free knee navigation system for Total Knee Arthroplasty. His original research and contributions have placed him at the top of the international community of researchers in the area of Computer Assisted Surgery (CAS). He has been recognized as a “Lead User Developer of Radical Innovation in the Field of Medical Equipment Technology”. He also initiated one of the first books on computer assisted knee orthopaedic surgery – “Computer Robotic Assisted Hip and Knee Surgery” – Oxford University press.

Mr. Frédéric Picard received his MD and Masters degree from Grenoble University in France. From 1999 to 2001, he worked successively with Dr. David Stulberg, Chicago (NWU), and Dr. Tony DiGioia in Pittsburgh (CMU/UPMC) implementing new applications in the field of CAS. He is a Consultant Orthopaedic Surgeon and Director of Orthopaedic Research at the Golden Jubilee National Hospital in Glasgow (Scotland), a major arthroplasty center in the United Kingdom. Member of several national and international orthopaedic societies, Dr. Picard received the Muller award, the highest recognition in Computer Assisted Surgery, in 2009 in Boston, MA (USA).


S. David Stulberg, MD
Dr. S. David Stulberg is a Board Certified orthopaedic surgeon, concentrating in total joint replacement of the knee and hip. He is on staff at Northwestern Memorial Hospital and the Rehabilitation Institute of Chicago and is the Director and Founder of the Joint Reconstruction and Implantation Service at Northwestern Memorial Hospital. He is also on staff at Rush North Shore Medical Center

In addition to his clinical work, Dr. Stulberg is a Professor of Clinical Orthopaedic Surgery at Northwestern University’s Feinberg School of Medicine and is an award-winning researcher and biomedical inventor who holds several patents on surgical instruments. His honors include the Maurice E. Muller Award for Excellence and Lifetime Achievement in Computer Assisted Surgery.

He is a member of the Hip Society and the Knee Societies of America, a co-founder of the International Society for Technology in Arthoplasty, a founding member of the International Society for Computer Assisted Orthopaedic Surgery, a fellow of the American Academy of Orthopaedic Surgery, and a member of the Board of Directors of Rehabilitation Institute of Chicago.

He earned his medical degree from the University of Michigan School of Medicine and completed his residency at the Harvard Combined Orthopaedic Residency Program, completing several fellowships in the areas of both orthopaedics and biomechanics.