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  4. Biomaterials for Total Joint Replacements
 
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Biomaterials for Total Joint Replacements

Resource
醫學工程 v.6 n.4 pp.110-117
Journal
醫學工程,v.6
Journal Issue
n.4
Pages
110-117
Date Issued
1994
Date
1994
Author(s)
TSAI, CHING-LIN
URI
http://ntur.lib.ntu.edu.tw//handle/246246/99092
Abstract
  The use of orthopaedic implants is growing rapidly in both number and sophistication. Metals and alloys, ceramics, carbons, polymers, combinations and composites are all used as biomaterials for total joint replacement ( TJR) devices. Limitations associated with long-term function in younger and more active patients have resulted in concerns about existing longevities. In this regard, properties and functional interactions have been reviewed to assess some of the relative magnitudes and possible limitations. Wear, which has been implicated as the major cause of osteolysis, is emerging as the principal limit on successful long-term fixation of total joint components, whereas aseptic loosening has resulted in loss of tissue support, motion, pain, and device revisions . Up to now, there exists no material in the world of which its properties are considered best for the production of orthopaedic implants. As a matter of fact, each material, with its specific property determined by its composition and processing technique, carries with it an inherent set of advantages as well as disavantages in implant design. Current theories suggest that three- dimensional composites with anisotropic property similar to the tissues being replaced are still under investigation, whereas biochemical bonding to tissues could help to optimize conditions of force transfer, tissue maintenance, and function. Surface modifications and combinations of highly wear-resistant biomaterials for articulation could also result in minimal magnitudes of wear-based debris. Through the continuation of clinical observation and selection of devices most suitable for the individual needs of each patient, progress in biomaterials and technological developments will continue to contribute to orthopaedic surgery.

臺大位居世界頂尖大學之列,為永久珍藏及向國際展現本校豐碩的研究成果及學術能量,圖書館整合機構典藏(NTUR)與學術庫(AH)不同功能平台,成為臺大學術典藏NTU scholars。期能整合研究能量、促進交流合作、保存學術產出、推廣研究成果。

To permanently archive and promote researcher profiles and scholarly works, Library integrates the services of “NTU Repository” with “Academic Hub” to form NTU Scholars.

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開放取用是從使用者角度提升資訊取用性的社會運動,應用在學術研究上是透過將研究著作公開供使用者自由取閱,以促進學術傳播及因應期刊訂購費用逐年攀升。同時可加速研究發展、提升研究影響力,NTU Scholars即為本校的開放取用典藏(OA Archive)平台。(點選深入了解OA)

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