Apply for membership
Join now and get access
to exclusive member privileges

Send us an email, if you have any questions or need further support.


Registered User (Join our community)

This free AOTrauma registration allows you to stay informed about the most recent news and updates from the world of AOTrauma and provides you with a range of free accessible educational content.

AO Surgery Reference

Gain easy access to the award-winning AO Surgery Reference, an online repository for surgical knowledge on complete surgical management processes and previously published AO material. It describes the complete surgical management process, from diagnosis to aftercare, for fractures in a given anatomical region, and is based on current clinical principles, practices and available evidence.

Access the AO Surgery Reference

Live Webinars and Webcasts

Online webinars and webcasts offer a unique opportunity to present a significant clinical topic to a worldwide audience, where participants not only watch the procedure, but ask questions and get real-time answers. Discover the variety of free live webinars and webcast covering a range of high-value clinical topics, led by world-renowned experts.

Register for our webinars and webcasts



AO/OTA Classification of Fractures

The AO/OTA Classification or Fractures (former Müller AO Classification) is the standard classification used by orthopedic and trauma surgeons dealing with skeletal trauma worldwide.
Discover the AO/OTA Classification of Fractures

AO Dialogue

AO Dialogue provides general information about happenings within the AO Foundation as well as issues of interest in orthopedics and trauma care.
Browse through the AO Dialogue


AOTrauma develops eLearning material to support its educational programs, and as standalone learning material.
Access diverse eLearning material

TK System: Innovations

This magazine contains information about new product developments resulting from continuous AO research activity and advances in each clinical division.
Read the TK System: Innovations