由于长期储存,皮层骨的机械性能降解
Nicholas Daras1, Gerald N Nurick1, Trevor J Cloete1
1Blast Impact and Survivability Research Unit (BISRU), Mechanical Engineering, University of Cape Town, Cape Town, 7701, Western Cape, South Africa.
概括
骨的机械性能在储存过程中会降低. 在采集后一周内对牛皮层骨样本进行测试对于准确的体外表现至关重要,因为长时间的储存会导致材料的显著降解.
科学领域:
- 生物材料科学 生物材料科学
- 骨科生物力学 骨科生物力学
- 组织工程是组织工程.
背景情况:
- 机械检测骨对于理解骨折和失败至关重要.
- 机械测试前的骨标本缺乏标准化储存协议.
- 像骨这样的生物材料在回收后会降解,影响机械性能.
研究的目的:
- 调查长期储存对牛皮层骨机械性能的影响.
- 为了比较骨在三种不同的储存协议下的降解.
- 确定测试骨样本的关键时间框架,以确保具有代表性的体内特性.
主要方法:
- 牛皮层骨样本的机械测试.
- 三种储存协议的比较:机械制冷,机械冷和冷-机械冷.
- 对长期储存期间的降解效应的评估.
主要成果:
- 在冷藏和冷的骨标本中都观察到降解效应.
- 在储存一周后测试骨样本可能会产生非代表性的体内特性.
- 经过六个月的储存后,无论使用的协议如何,都发生了严重的降解.
结论:
- 储存时间显著影响皮质骨的机械性质.
- 骨样本的及时测试对于准确的生物力学研究至关重要.
- 已建立的储存协议需要改进,以考虑到随着时间的推移物质的降解.
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