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Fig. 2 | Journal of Orthopaedic Surgery and Research

Fig. 2

From: Breaking strength and bone microarchitecture in osteoporosis: a biomechanical approximation based on load tests in 104 human vertebrae from the cervical, thoracic, and lumbar spines of 13 body donors

Fig. 2

Human vertebral body failure load test setup using an MTS 858 servohydraulic testing machine (MTS Systems Cooperation in Eden Prairie, USA). The testing machine has a nominal force range for static and dynamic tests of ± 15 kilonewtons. The hydraulically driven working piston attached to the crosshead was uniformly moved vertically at the specified test speed of 5 mm/min by opening and closing the control valves. Its counterpart was the load cell located in the base plate. The working piston was moved in the direction of the load cell in the manner of a compressive load on the vertebral body. The force was applied via intervertebral disk replacement material made of an acrylic glass connection. The applied forces and displacements were recorded and stored using the load cell and displacement sensor

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