Investigating human femur failure due to sideways fall

IBMS BoneKEy ◽  
2014 ◽  
Vol 11 ◽  
Keyword(s):  
Human Femur ◽  
Sideways Fall

scholarly journals Strain distribution in the proximal Human femur during in vitro simulated sideways fall

2015 ◽  
Vol 48 (10) ◽  
pp. 2130-2143 ◽  
Author(s):  
Lorenzo Zani ◽  
Paolo Erani ◽  
Lorenzo Grassi ◽  
Fulvia Taddei ◽  
Luca Cristofolini
Keyword(s):  
Strain Distribution ◽  
Human Femur ◽  
Sideways Fall

scholarly journals A NEW PARADIGM FOR THE IN VITRO SIMULATION OF SIDEWAYS FALL LOADING OF THE PROXIMAL HUMAN FEMUR

2014 ◽  
Vol 14 (01) ◽  
pp. 1450005 ◽  
Author(s):  
LORENZO ZANI ◽  
LUCA CRISTOFOLINI ◽  
MATEUSZ MARIA JUSZCZYK ◽  
LORENZO GRASSI ◽  
MARCO VICECONTI
Keyword(s):  
Femoral Head ◽  
Internal Rotation ◽  
Proximal Femur ◽  
High Speed ◽  
External Rotation ◽  
Frontal Plane ◽  
New Paradigm ◽  
Human Femur ◽  
Sideways Fall

Although the direction of loads applied to the proximal human femur is unpredictable during sideways fall, most in vitro and numerical simulations refer to a single loading condition (15° internal rotation; 10° adduction), which has been anecdotally suggested in the 1950s. The aim of the present study was to improve in vitro simulations of sideways falls on the proximal femur. An in vitro setup was developed that allowed exploring a range of loading directions +/-90° internal–external rotation; 0°–50° adduction). To enable accurate control of the loading conditions (direction and magnitude of all load components applied to the femur), the setup included a number of low-friction linear and rotary bearings. The setup was instrumented with an axial and a torsional load cell, three displacement transducers and a rotation transducer to monitor the most significant components of load/displacement during testing. The strain distribution was measured on the bone surface (16 triaxial strain gauges, 2,000 Hz). Fracture was recorded with a high-speed camera. The setup was successfully tested on a cadaveric femur non-destructively (12 loading configurations) and destructively (15° internal rotation; 10° adduction). All measurements were highly repeatable (the displacements of the femoral head varied by < 2% between repetitions; the tilt in the frontal plane by < 0.05°; and strain varied on average 0.34% between repetitions). The displacement of the femoral head varied by over 50% when the same force was applied in different directions. Principal strains at the same location varied by over 70%, depending on the direction of the applied force. The high-speed video enabled the identification of the point of fracture initiation. This study has shown that a new paradigm for testing the proximal femur (including improved testing conditions and a variety of loading configurations) can provide more accurate and more extensive information about the state of strain.

On the Failure Initiation in the Proximal Human Femur Under Simulated Sideways Fall

2017 ◽  
Vol 46 (2) ◽  
pp. 270-283 ◽  
Author(s):  
Hassan Bahaloo ◽  
W. S. Enns-Bray ◽  
I. Fleps ◽  
O. Ariza ◽  
S. Gilchrist ◽  
...  
Keyword(s):  
Failure Initiation ◽  
Human Femur ◽  
Sideways Fall

IN-VITRO STRAIN DISTRIBUTION DURING SIDEWAYS FALL IN THE PROXIMAL HUMAN FEMUR

2012 ◽  
Vol 45 ◽  
pp. S351 ◽  
Author(s):  
Lorenzo Zani ◽  
Luca Cristofolini ◽  
Mateusz Juszczyk ◽  
Marco Viceconti
Keyword(s):  
Strain Distribution ◽  
Human Femur ◽  
Sideways Fall

Time is bone — Quantitative comparison of decalcification solvents in human femur samples using dual-X-ray-absorptiometry and computed tomography

2021 ◽  
Vol 235 ◽  
pp. 151696
Author(s):  
Joshua Gawlitza ◽  
Jakob Steinhäuser ◽  
Arno Bücker ◽  
Gabriela Krasteva-Christ ◽  
Thomas Tschernig
Keyword(s):  
Computed Tomography ◽  
Quantitative Comparison ◽  
X Ray ◽  
Human Femur

High resolution X-ray analysis of a proximal human femur with synchrotron radiation and an innovative linear detector

2005 ◽  
Author(s):  
M. Bettuzzi ◽  
R. Brancaccio ◽  
F. Casali ◽  
S. Cornacchia ◽  
E. Di Nicola ◽  
...  
Keyword(s):  
High Resolution ◽  
Synchrotron Radiation ◽  
X Ray ◽  
Linear Detector ◽  
Human Femur

Force attenuation properties of shear-thickening polymer (STP)-based hip protector in simulated sideways fall

2020 ◽  
Vol 34 (12) ◽  
pp. 5351-5357
Author(s):  
Haeun Yum ◽  
Yeonha Kim ◽  
Bobae Kim ◽  
Yeokyeong Lee ◽  
Taeyong Lee
Keyword(s):  
Shear Thickening ◽  
Hip Protector ◽  
Sideways Fall

Multielement analysis on bone structures of medieval human femur

1996 ◽  
Vol 109-110 ◽  
pp. 667-672 ◽  
Author(s):  
D. Grambole ◽  
F. Herrmann ◽  
B. Herrmann
Keyword(s):  
Multielement Analysis ◽  
Human Femur ◽  
Bone Structures

scholarly journals Wave Dispersion and Attenuation on Human Femur Tissue

Sensors ◽  
2014 ◽  
Vol 14 (8) ◽  
pp. 15067-15083 ◽  
Author(s):  
Maria Strantza ◽  
Olivia Louis ◽  
Demosthenes Polyzos ◽  
Frans Boulpaep ◽  
Danny van Hemelrijck ◽  
...  
Keyword(s):  
Wave Dispersion ◽  
Human Femur ◽  
Dispersion And Attenuation
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