AO Technical Commission Experts Symposia

The Experts Symposia of the AO Technical Commission (AO TC) are well-established events to foster exchange among surgeons and representatives of our industrial partners with the overall goal to improve patient treatment. It is essential to review the clinical performance of implants, instruments, and the surgical techniques. Open and straightforward discussions are fundamental for identifying potential device improvements and refinements of surgical procedures. Consequently, the symposium format is fundamental in fulfilling the AO TC quality assurance mandate for newly developed devices when they become available for surgeons. The symposia have proven to be invaluable for defining the remaining unmet clinical need that is not yet addressed by existing solutions. This type of information is imperative to justify the initiation of new development projects, which makes the Experts Symposia highly appealing to our industrial partners. The information exchange at the symposia is strictly confidential.

The experiences over the past few years have reinforced the benefits of inviting experienced surgeons of all age groups to the symposia. While the more senior surgeons are familiar with the development history of implants and instruments as they became available, younger surgeons may be more apt to think out of the box. Since the initiation of the AO TC Experts Symposia in 2006 about 920 surgeons have participated and consequently, this AO TC network is rapidly expanding.

Trauma Experts Symposia
Spine Experts Symposia
CMF Experts Symposia

From August 30–31, 2024, the 16th AO TC Trauma Experts Symposium (Europe) took place in the beautiful city of Florence, Italy, chaired by Michael Raschke. The successful event brought together 52 surgeons from 22 countries for in-depth discussions and knowledge sharing on the latest advancements in trauma surgery.

The symposium featured five sessions, in collaboration with the AO's key industry partner, focusing on cutting-edge innovations in the field.

Key topics included Acetabular Fractures, Proximal and Distal Femur Fractures, Ankle Fusion, and an outlook into Intelligent Implants. A highlight of the symposium was the special session with the AO's key industry partner J&J MedTech, where all participants had the opportunity to gain insights into their nail portfolio.

The 17th AO TC Trauma Experts Symposium (Europe) will be held in 2026.

Group picture, 16th AO TC Trauma Experts Symposium (Europe), Italy

14th AO TC Trauma Experts Symposium (Asia Pacific), South Korea

After four years, the Asia Pacific Symposium took place in Seoul, South Korea. The 14th edition of the AO TC Trauma Experts Symposium, held on April 5-6, 2024, saw attendance from 66 surgeons representing 18 countries. The event was chaired by the local expert, JK Oh. The event featured six sessions, each highlighting a total of 39 case presentations.

The topics covered included diagnosis of fracture-related infection (FRI), FRI management with critical bone defects, knee joint preservation techniques, treatment of distal femur fractures (including peri-prosthetic fractures), management of distal tibia fractures, and experiences with TFNA (Trochanteric Femoral Nail Advanced).

Throughout the discussions, participants and faculty identified certain challenges for the AO Technical Commission.

Building on the importance of this event, the 15th AO TC Trauma Experts Symposium (Asia Pacific) is scheduled for spring 2026 and will be chaired by JK Oh.

Group picture, 14th AO TC Trauma Experts Symposium (Asia Pacific), South Korea

7th AO TC Experts Symposium (North America)

Every two years, North America hosts a trauma-related AO TC Experts Symposium. The most recent symposium took place on September 23-24
in Bozeman and was chaired by C Finkemeier, drawing 29 participants.

The symposium commenced with an introductory session on Distal Femur Fracture: Biphasic Plate—New Fixation Principle, where C Sommer from Switzerland shared the initial experiences in Europe.

The symposium program was divided into five key sessions:

Syndesmosis Injuries—Reevaluating the role of screws
Patella Plate Innovations
Managing Bone Defects
Periprosthetic Plating System Advancements
Deformity Correction Techniques

The 8th AO TC Trauma Experts Symposium (North America) is scheduled for September 2025.

Group picture, 7th AO TC Trauma Experts Symposium, USA

5th AO TC Trauma Experts Symposium (Latin America)

The 5th AO TC Trauma Experts Symposium (Latin America) in Argentina, chaired by Carlos Sancineto, was a great success. 33 participants from 14 countries attended.

The program was diverse and divided into five sessions. Each session was chaired by a member of the AO TC Trauma and supported by regional faculty. Various topical issues were discussed, such as infections in fractures, non-healing of fractures, and deformities.

The faculty encouraged interaction among participants and several case discussions were held. At the end of each session, important conclusions were drawn regarding remaining clinical needs in specific areas of infection and fracture fixation.

Group picture, 5th AO TC Trauma Experts Symposium, Argentina

5th AO TC Spine Experts Symposium, Dallas

The 5th AO Technical Commission (TC) Spine Experts Symposium brought together 32 participants, primarily from North America, for one and a half days of focused scientific exchange in Dallas, Texas, on March 21–22, 2025.

Chaired by Rick Bransford and Jean Ouellet, the symposium explored the complexities and innovations in managing spinal deformities across a wide range of patient populations. The program featured 31 case presentations, sparking dynamic discussions on topics including:

Adult thoracolumbar deformities
Post-traumatic deformities
Adolescent idiopathic scoliosis
Early onset scoliosis
Oncologic aspects of spinal deformities

Each session concluded with the identification of clinical needs and potential areas for innovation. The interactive format and diverse case discussions fostered a highly engaging environment for knowledge sharing and expert dialogue.

Building on the success of this event, the 6th AO TC Spine Experts Symposium is planned for spring 2027 in Europe.

Participants of the 5th AO TC Spine Experts Symposium, Dallas

4th AO TC Spine Experts Symposium, Chile

The fourth AO TC Spine Experts Symposium took place in 2024 in Santiago de Chile and was led by Maarten Spruit and Peter Derman. The event brought together 11 faculty members from nine countries and 25 participants from 10 countries, mainly in Latin America. The event was organized into five sessions, showcasing a total of 28 case presentations.

The symposium covered topics including surgical approaches to lumbar spondylolisthesis, infections at surgical sites in lumbar spine surgery, impact of lordosis in lumbosacral fusion L4-5-S1, evidence-based surgical treatment for neurologically intact A3-A4 TL fractures, and key points in minimally invasive surgery for lumbar spine pathology.

During the discussions, participants and faculty highlighted some challenges for the AO Technical Commission.

Thanks to the success of this event, the 6th AO TC Spine Experts Symposium is set for spring 2025 in Dallas, USA, chaired by Richard Bransford and Jean Ouellet.

Group picture, 4th AO TC Spine Experts Symposium, Chile

3rd AO TC Spine Experts Symposium, Singapore

The 3rd AO TC Spine Experts Symposium was held in Singapore and led by AO TC Spine Chairperson Maarten Spruit. The symposia brought together 25 participants from 13 countries, and the event featured five diverse sessions:

Arthroplasty versus ACDF for Radiculopathy
Laminoplasty versus Laminectomy (+/- fusion) versus ACDF for Myelopathy
Upper Cervical Pathology Requiring Fusion: C1-2 or C0-2
Cervical Deformity: Anterior versus Posterior versus Combined
Robotics/Navigation/AR/VR: Gateway to Next Level Cervical Surgery and Results?

Each session consisted of an introduction of the subject by the faculty, followed by a case discussion using cases submitted by the participants, ending with a conclusion and clinical needs definition by the moderator.

This year's case winner was Torphong Bunmaprasert from Chiang Mai, Thailand, who presented a case about an acute traumatic lateral atlantoaxial dislocation associated with locked atlas lateral mass and odontoid process fracture.

The 4th AO TC Spine Experts Symposium will take place on March 30-31, 2024 in Santiago de Chile.

Group picture, 3rd AO TC Spine Experts Symposium

Case winner T Bunmaprasert (l) with M Spruit (r)

2nd Spine AOTK Experts Symposium, Netherlands

Chaired by M Spruit, the program (held in Amsterdam on September 20 and 21, 2019) was divided into five sessions:

Surgical site infection in spine surgery
Degenerative lumbar discs and back pain
Lumbar spine revision surgery
Lumbar stenosis and spondylolithesis
Instrumentation of the osteoporotic spine

Each session consisted of an introduction to the subject by one of the faculty, followed by a case discussion using cases submitted by participants, and ended with a conclusion and clinical needs definition by the moderator.

The case winner was Chung Chek Wong with his case about instrumentation of the osteoporotic spine.

The 3rd AO TC Spine Experts Symposium will take place on September 23-24, 2022 in Singapore and will be chaired by M Spruit.

Group picture, 2nd Spine AOTK Experts Symposium

M Spruit (l) with case presentation winner CC Wong (r)

2nd AO TC CMF Experts Symposium, Denmark

The 2nd AO TC CMF Experts Symposium convened in Copenhagen, Denmark in 2023 and was led by D Buchbinder and M Grant. This one-and-a-half-day event drew nine experts from five countries and attracted 23 participants from seven different countries. The symposium was structured into three distinct sessions, comprising a total of 18 case presentations. Session topics were

Computer Assisted Planning and Patient Specific Solutions in Orthognathic Surgery
CAS and PSS in Orbital and Midface Trauma Surgery
CAS and PSS in Post Ablative Maxillofacial Reconstruction

Throughout the sessions, both the participants and faculty engaged in discussions that brought to light several challenges for the AO TC and the AO's key industry partner. The AO TC CMF community has pledged to collaborate in order to effectively address these challenges.

following this success, plans are underway for the organization of the third AO TC CMF Symposium on September 21-22, 2024, with N-C Gellrich set to take the helm as the chairperson.

Group picture, 2nd AO TC CMF Experts Symposium

1st CMF AOTK Experts Symposium, USA

The first AOTK CMF Experts Symposium was held on November 13–14, 2019, in Tampa, Florida, US. D Buchbinder chaired the symposium which was attended by 14 surgeons and 9 representatives from the industry.

The three symposium sessions focused on:

Patient specific orthognathic solutions
Patient specific solutions for orbit and midface reconstruction
Patient specific solutions for CMF reconstruction following ablative surgery

The participants exchanged their case experiences to discuss and to identify opportunities for improvement. Recent advances in digital planning and innovative approaches to design and to manufacture patient-specific surgical guides and implants allow that complex surgical procedures can be performed in a highly reproducible manner independent of the surgical experience. Although the costs that are currently associated with the use of patient-specific implants and cutting guides are high, there is a clear trend toward their increased use because of the high predictability and accuracy that can be achieved and the potential to reduce operating room time.

The case winner was Ruediger Zimmerer, with his case about bilateral TJR with counter-clockwise rotation in mandibular hypoplasia.

The 2nd AO TC CMF Experts Symposium will take place on October 13-14 in Copenhagen, Denmark and will be chaired by D Buchbinder.

Group picture, 1st CMF AOTK Experts Symposium

D Buchbinder (l) with case presentation winner R Zimmerer (r)

Challenging cases, clinical need, robust examination.

Since the first AO Technical Commission Experts Symposium was held in 2006, these events have come to be recognized as delivering a powerful impetus into the innovation development process.