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The Biomedical Services team at AO Research Institute Davos, has developed a new two leg alternate loading pelvis testing model with physiological cyclic loading on either femur, with better biomechanical testing of pelvic ring fracture osteosynthesis.
The biomechanical stability of the pelvic ring is more than a relationship between the bony segments, it is the foundation of the entire musculoskeletal function. So far, various methods have been adopted to capture the movements of pubic symphysis with a focus on the non-injured anatomy. However, the existing biomechanical models, simulating either one-leg stance [Kraus, 1998] or symmetrical loading on both legs [Kim, 1999; Pohlemann, 1992; Varga, 1995], differ from the alternating physiological load during the gait. The aim of this study was to develop a new biomechanical testing model with two-leg alternate pelvic loading in order to measure movements at the pubic symphysis closer to reality.
The study was presented at European Society of Biomechanics Congress in Lisbon, 2012. (BIOMECHANICAL INVESTIGATION OF PUBIC SYMPHYSIS MOVEMENTS WITH TWO LEG ALTERNATE LOADING, Yash Agarwal, Fabian Stuby, Markus Windolf, Thomas Shiozawa, Bjorn Ochs, Christoph Gonser, Boyko Gueorguiev, 2012)