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The Archives of Bone and Joint Surgery، جلد ۷، شماره ۶، صفحات ۵۳۱-۵۳۷
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عنوان انگلیسی Creep behavior of Biodegradable Triple-component Nanocomposites Based on PLA/PCL/bioactive Glass for ACL Interference Screws
چکیده انگلیسی مقاله Background: Short-time creep behaviorfor aseries of biodegradable nanocomposites, which areused as implantabledevices inthe body, is a crucial factor.The present study aimed to investigate the effect of bioactive glass nanoparticles(BGn) on creep and creep-recovery behaviors of polylactic acid/polycaprolactone (PLA/PCL) blends at different givenloads and different applied temperatures.Methods: A series of biodegradable nanocomposites consisted of PLA/PCL blends (comprising 80 parts PLA and 20parts PCL) with different amounts of modified-BGn (m-BGn) fillers were prepared using the evaporated solvent castingtechnique. Creep and creep-recovery behaviors of all specimens were studied at different valuable stressesof 3 and 6MPa and different given temperatures of 25 and 37°C.Results: In all cases, m-BGn improved the creep resistance of the nanocomposites due to the retardation effectduring the creep behaviors of the nanocomposite systems. The obtained results in terms of creep and creep-recoveryproperties determined that the nanocomposites of PLA/PCL/m-BGn can satisfy the required conditions of an appropriateanterior cruciate ligament reconstruction (ACL-R) screw.Conclusion: The obtained results confirmed that the BGn plays an impeding role in the movement of PLA/PCL chainsleading to in increase the creep resistance. According to the results, it was determined that the nanocomposites of PLA/PCL and m-BGn can satisfy the required circumstances of a proper ACL-R screw.Level of evidence: I
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نویسندگان مقاله | Javad Esmaeilzadeh
Orthopedic Research Center, Mashhad University of Medical Science, Mashhad, Iran Esfarayen University of Technology, Esfarayen, North Khorasan, Iran


| Saeed Hesaraki
Biomaterials Group, Nanotechnology and Advanced Materials Department, Materials and Energy Research Center, Tehran, Iran


| Mohammad H. Ebrahimzadeh
Orthopedic Research Center, Mashhad University of Medical Science, Mashhad, Iran


| Golam Hosein Asghari
Central Laboratory Faculty, Iran Polymers and Petrochemical Institute, Tehran, Iran


| Amir R. Kachoei
Orthopedic Research Center, Mashhad University of Medical Science, Mashhad, Iran
نشانی اینترنتی http://abjs.mums.ac.ir/article_13637.html
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/328/article-328-2061269.pdf
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده RESEARCH PAPER
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