Bone Testing
Hip Testing Rig
This rig is used to examine several different aspects of hip interventions. These include initial loosening in total hip replacements, aseptic loosening in hip replacements and screw fixation after hip fractures. The hip testing rig applies realistic hip joint and muscle forces calculated from other work carried out in the CABER group. This is done using 3 Pneumatic cylinders for the hip joint force in the X, Y, and Z directions. Two more cylinders are used to apply the muscle forces and use a pulley system. The whole rig setup uses air and is controlled using a computer setup. For Fatigue modelling Linear Voltage Displacement Transducers (LVDT) are used to measure displacement of implants
Figure: Hip testing rig used for initial loosening in total hip replacements, aseptic loosening in hip replacements and screw fixation after hip fractures