TY - CONF
T1 - Influence of ageing on micromechanical properties of the femoral neck using the inverse method
T2 - 27th Congress of the European Society of Biomechanics, 26.-29.06.2022, Porto, Portugal
AU - Voumard, Benjamin
AU - Stefanek, Pia
AU - Pretterklieber, Michael
AU - Pahr, Dieter H.
AU - Zysset, Philippe
PY - 2022
Y1 - 2022
N2 - People worldwide are living longer, and the incidenceof hip fracture risk increases exponentially with age.Loss of bone mass and falls are the primary causes ofhip fractures, but bone mechanical integrity at themicroscale was also reported to increase withmineralisation and decline with age. Macroscopic testsof the proximal part of the femur are prone to errors,and corresponding μFE models become exceedinglylarge. In contrast, compressive testing of bone sectionswas shown to be accurate. Therefore, we performedcompressive tests of femoral neck sections andsimulated the same tests with non-linear μFE [1]. Wehypothesised that the micromechanical parameters ofthe μFE models must decrease with age in order tomatch the macroscopic experimental response.
AB - People worldwide are living longer, and the incidenceof hip fracture risk increases exponentially with age.Loss of bone mass and falls are the primary causes ofhip fractures, but bone mechanical integrity at themicroscale was also reported to increase withmineralisation and decline with age. Macroscopic testsof the proximal part of the femur are prone to errors,and corresponding μFE models become exceedinglylarge. In contrast, compressive testing of bone sectionswas shown to be accurate. Therefore, we performedcompressive tests of femoral neck sections andsimulated the same tests with non-linear μFE [1]. Wehypothesised that the micromechanical parameters ofthe μFE models must decrease with age in order tomatch the macroscopic experimental response.
M3 - Oral presentation at a conference
ER -