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Techniques in the Application of ISO 9585 Test Method for the Determination of Bone Plate Bending Properties

DM Cesarone,JA Disegi-1994-01-01
6

TL;DRAbstract

Specialized metallic bone plates are used to stabilize various types of bone fractures which occur in the upper and lower extremities. A knowledge of the relative bending strength and stiffness of bone plates is desirable to evaluate the effect of different materials and designs on clinical performance. Bending stiffness in the elastic region is primarily a function of the modulus of elasticity of the material and plate dimensions. Adequate bending strength is important to resist permanent deformation associated with single-cycle overload stress. Proper contouring of bone plates in the operating room is related to plate design. ISO 9585, “Implants for Surgery — Method for Testing Bending Strength and Stiffness of Bone Plates,” describes a static four-point bend test for bone plates. Testing factors such as bone plate length, cylindrical roller dimensions, and flatness deviations are specified in the ISO test method. Plate placement on the bending rollers and plate orientation must also

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Specialized metallic bone plates are used to stabilize various types of bone fractures which occur in the upper and lower extremities. A knowledge of the relative bending strength and stiffness of bone plates is desirable to evaluate the effect of different materials and designs on clinical performance. Bending stiffness in the elastic region is primarily a function of the modulus of elasticity of the material and plate dimensions. Adequate bending strength is important to resist permanent deformation associated with single-cycle overload stress. Proper contouring of bone plates in the operating room is related to plate design. ISO 9585, “Implants for Surgery — Method for Testing Bending Strength and Stiffness of Bone Plates,” describes a static four-point bend test for bone plates. Testing factors such as bone plate length, cylindrical roller dimensions, and flatness deviations are specified in the ISO test method. Plate placement on the bending rollers and plate orientation must also

Keywords

BendingMaterials scienceTest methodStructural engineeringComposite materialEngineeringMathematicsStatistics

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