Mobile Biplane X-ray (MoBiX) System

Our mobile biplane X-ray imaging system investigates human motion biomechanics.

Our unique Mobile Biplane X-ray (MoBiX) imaging system can accurately measure bone motion at joints – like the knee – as people walk over ground, up and down stairs, and perform other daily activities.

This novel imaging system has applications in orthopaedics, sports and rehabilitation. For example, it’s been used in a clinical trial to measure knee implant motion in patients who have undergone a total knee replacement. This trial, which was sponsored by an international orthopaedic implant company, evaluated the kinematic performance of three common total knee arthroplasty designs.

The MoBiX imaging system has also measured full three-dimensional motion of the knee joint in healthy people and evaluate the biomechanical mechanisms underlying knee osteoarthritis in patients after reconstruction of the anterior cruciate ligament (ACL).


The MoBiX imaging system measures bone motion in three dimensions at high frame rates (up to 1000 X-ray images per second) and high precision during human locomotion.

User information

We work with a wide range of clients, including but limited to:

  • Orthopaedic companies manufacturing joint replacements
  • Sports medicine clinicians and practitioners
  • Coaches interested in enhancing sports performance and preventing injuries
  • Companies manufacturing rehabilitation devices like knee braces and orthoses.

Contact us

Professor Marcus Pandy
Phone:  +61 3 83444054

First published on 27 March 2023.

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