Within the context of an animal study on bone healing with LCP-osteosynthesis, the object of this study was to evaluate biomechanically the difference of stiffness between veterinary and human LCP-system. Furthermore a new implant, the Dynamic Locking Screw (DLS), was tested. The tests were performed on a material testing machine with simplified fracture models consisting of POM C cylinders and a LCP. Besides stiffness, interfragmentary motion was analysed using an optical measurement system. We could exactly quantify the difference of stiffness between the veterinary and human LCP-system, so that the results of the animal study can be interpreted taking the mismatch of stiffness into account. The new DLS reduced the axial stiffness and increased interfragmentary motion to a level, which is considered by literature to be optimal for bone healing.
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Within the context of an animal study on bone healing with LCP-osteosynthesis, the object of this study was to evaluate biomechanically the difference of stiffness between veterinary and human LCP-system. Furthermore a new implant, the Dynamic Locking Screw (DLS), was tested. The tests were performed on a material testing machine with simplified fracture models consisting of POM C cylinders and a LCP. Besides stiffness, interfragmentary motion was analysed using an optical measurement system. We...
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