Factors affecting the longevity and strength in an in vitro model of the bone-ligament interface.

Factors affecting the longevity and strength in an in vitro model of the bone-ligament interface.
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DOI:
10.1007/s10439-010-0044-0
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发表时间:
2010-06
影响因子:
3.8
通讯作者:
Grover, Liam M.
Grover, Liam M.
中科院分区:
工程技术2区
文献类型:
--
作者:
Paxton, Jennifer Z.;Donnelly, Kenneth;Keatch, Robert P.;Baar, Keith;Grover, Liam M.

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具有对比模量的肌肉骨骼组织之间的界面在形态学和生物化学上适于以最小的损伤传递力。目前的组织工程韧带和肌腱的方法不包括接口,这可能会限制未来的工程肌肉骨骼组织的临床成功。本研究的目的是使用固体透钙磷石骨水泥锚钉来设计骨与骨之间的完整韧带,在体外建立功能性肌肉骨骼界面。我们在这里表明,修改锚形状和骨水泥成分可以改变骨-韧带界面体外模型的寿命和强度:值分别达到23天和21.6 kPa。这些结果验证了透钙磷石骨水泥在体外设计骨-韧带界面的用途,并提高了将来在韧带置换手术中使用的潜力。
The interfaces between musculoskeletal tissues with contrasting moduli are morphologically and biochemically adapted to allow the transmission of force with minimal injury. Current methods of tissue engineering ligaments and tendons do not include the interface and this may limit the future clinical success of engineered musculoskeletal tissues. This study aimed to use solid brushite cement anchors to engineer intact ligaments from bone-to-bone, creating a functional musculoskeletal interface in vitro. We show here that modifying anchor shape and cement composition can alter both the longevity and the strength of an in vitro model of the bone–ligament interface: with values reaching 23 days and 21.6 kPa, respectively. These results validate the use of brushite bone cement to engineer the bone–ligament interface in vitro and raise the potential for future use in ligament replacement surgery.
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