The effect of the trabecular microstructure on the pullout strength of suture anchors.
The effect of the trabecular microstructure on the pullout strength of suture anchors.
复制标题
DOI：
10.1016/j.jbiomech.2010.03.013
复制
发表时间：
2010-07-20
影响因子：
2.4
通讯作者：
Gall, Ken
中科院分区：
文献类型：
--
作者：
Yakacki, Christopher M.;Poukalova, Mariya;Guldberg, Robert E.;Lin, Angela;Saing, Minn;Gillogly, Scott;Gall, Ken
本研究探讨骨小梁的显微结构特性对缝合锚钉性能的影响。在大结节、小结节和肱骨头处用5mm关节开塞器测试7个新鲜冷冻肱骨的拔出强度。微计算机断层扫描分析是在三个感兴趣的区域进行的，这些区域直接与个体拔出实验相邻。将骨矿物质密度（BMD）、结构模型指数（SMI）、小梁厚度（TbTh）、小梁间距（TbS）、小梁数目（TbN）、连通性密度等形态学特征与缝合锚钉拉拔强度进行比较。BMD （r = 0.64）、SMI （r = -0.81）和TbTh （r = 0.71）与缝合锚的拉拔强度呈线性相关，p值< 0.0001。开发了一个预测模型来解释个体BMD、SMI和TbTh相关性的差异。与单个实验结果相比，多变量拔拔强度模型的相关性更强（r = 0.86）。本研究有助于证实骨密度是影响缝合锚抗拉强度的主要因素，同时也说明了局部微观结构对缝合锚抗拉的重要性。
This study investigates how the microstructural properties of trabecular bone affect suture anchor performance. Seven fresh-frozen humeri were tested for pullout strength with a 5 mm Arthrex Corkscrew in the greater tuberosity, lesser tuberosity, and humeral head. Micro-computed tomography analysis was performed in the three regions of interest directly adjacent to individual pullout experiments. The morphometric properties of bone mineral density (BMD), structural model index (SMI), trabecular thickness (TbTh), trabecular spacing (TbS), trabecular number (TbN), and connectivity density were compared against suture anchor pullout strength. BMD (r = 0.64), SMI (r = -0.81), and TbTh (r = 0.71) showed linear correlations to the pullout strength of the suture anchor with p-values < 0.0001. A predictive model was developed to explain the variances in the individual BMD, SMI, and TbTh correlations. The multi-variant model of pullout strength showed a stronger relationship (r = 0.86) compared to the individual experimental results. This study helps confirm BMD is a major influence on the pullout strength of suture anchors, but also illustrates the importance of local microstructure in pullout resistance of suture anchors.
登录
查看更多内容
DOI：
10.1016/j.arthro.2006.10.023
发表时间：
2007-08-01
影响因子：
4.7
作者：
Capiola, David;Re, Louis
通讯作者：
Re, Louis
DOI：
10.1016/s0749-8063(97)90031-1
发表时间：
1997-06-01
影响因子：
4.7
作者：
Barber, FA;Feder, SM;Ahrens, J
通讯作者：
Ahrens, J
影响因子：
2.4
作者：
GOULET, RW;GOLDSTEIN, SA;FELDKAMP, LA
通讯作者：
FELDKAMP, LA
影响因子：
2.8
作者：
Yakacki, Christopher Michael;Griffis, Jack;Gall, Ken
通讯作者：
Gall, Ken
DOI：
10.1097/01.blo.0000185033.32220.57
发表时间：
2006-01-01
影响因子：
4.2
作者：
Meyer, D. C.;Mayer, J.;Gerber, C.
通讯作者：
Gerber, C.