Optimisation of composite bone plates for ulnar transverse fractures
| Autor: | L.T. Harper, Andrew J. Parsons, Nilanjan Das Chakladar |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Adult
Male Materials science medicine.medical_treatment 0206 medical engineering Bone Screws Biomedical Engineering Biocompatible Materials Ulna Mechanical properties 02 engineering and technology Bone healing Stress (mechanics) Biomaterials Composite plate Bone plate Materials Testing medicine Humans Reduction (orthopedic surgery) Mechanical Phenomena Composites business.industry Finite element analysis Structural engineering Stress shielding 021001 nanoscience & nanotechnology Compression (physics) 020601 biomedical engineering Ulna Fractures Mechanics of Materials Advanced composite materials Bone plates Glass 0210 nano-technology business |
| ISSN: | 1751-6161 |
| Popis: | Metallic bone plates are commonly used for arm bone fractures where conservative treatment (casts) cannot provide adequate support and compression at the fracture site. These plates, made of stainless steel or titanium alloys, tend to shield stress transfer at the fracture site and delay the bone healing rate. This study investigates the feasibility of adopting advanced composite materials to overcome stress shielding effects by optimising the geometry and mechanical properties of the plate to match more closely to the bone.An ulnar transverse fracture is characterised and finite element techniques are employed to investigate the feasibility of a composite-plated fractured bone construct over a stainless steel equivalent. Numerical models of intact and fractured bones are analysed and the mechanical behaviour is found to agree with experimental data. The mechanical properties are tailored to produce an optimised composite plate, offering a 25% reduction in length and a 70% reduction in mass. The optimised design may help to reduce stress shielding and increase bone healing rates. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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