仿生复合金属髋关节置换植入物

4区材料科学 Q2 Engineering

Advances in Materials Science and Engineering Pub Date : 2008-07-09 DOI:10.1155/2008/368985

H. Bougherara, M. Bureau

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引用次数: 2

摘要

髋关节表面置换技术是一种保守的关节置换术，用于年轻患者，其中股骨头被重塑以接受带有小导杆的金属帽。在本研究中，提出了一种混合复合金属表面修复种植体。杯子由碳纤维/聚酰胺12 (CF/PA12)制成，上面覆盖着一层薄薄的钴铬(Co-Cr)。采用有限元法对混合型髋关节表面置换(HHR)与传统Birmingham髋关节表面置换(BHR)的生物力学性能进行了分析和比较。有限元分析结果表明，复合种植体导致松质骨的应力比BHR增加15%以上，表明应力屏蔽和骨折的可能性较低，而与HHR相结合的可能性较高。

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Biomimetic Composite-Metal Hip Resurfacing Implant

Hip resurfacing technique is a conservative arthroplasty used in the young patient in which the femoral head is reshaped to accept metal cap with small guide stem. In the present investigation, a hybrid composite-metal resurfacing implant is proposed. The cup is made of carbon fiber/polyamide 12 (CF/PA12) covered with a thin layer of cobalt chrome (Co-Cr). Finite element (FE) method was applied to analyze and compare the biomechanical performances of the hybrid hip resurfacing (HHR) and the conventional Birmingham (BHR). Results of the finite element analysis showed that the composite implant leads to an increase in stresses in the cancellous bone by more than 15% than BHR, indicating a lower potential for stress shielding and bone fracture and higher potential for bone apposition with the HHR.

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来源期刊

Advances in Materials Science and Engineering Materials Science-General Materials Science

CiteScore

3.30

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： Advances in Materials Science and Engineering is a broad scope journal that publishes articles in all areas of materials science and engineering including, but not limited to: -Chemistry and fundamental properties of matter -Material synthesis, fabrication, manufacture, and processing -Magnetic, electrical, thermal, and optical properties of materials -Strength, durability, and mechanical behaviour of materials -Consideration of materials in structural design, modelling, and engineering -Green and renewable materials, and consideration of materials’ life cycles -Materials in specialist applications (such as medicine, energy, aerospace, and nanotechnology)