The relationship of suture anchor failure and bone density to proximal humerus location: A cadaveric study
The relationship of suture anchor failure and bone density to proximal humerus location: A cadaveric study
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DOI：
10.1016/s0749-8063(97)90031-1
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发表时间：
1997-06-01
影响因子：
4.7
通讯作者：
Ahrens, J
中科院分区：
文献类型：
--
作者：
Barber, FA;Feder, SM;Ahrens, J
本研究的目的是评估缝合锚钉在肱骨近端拔出强度的空间变化，并将任何差异与局部骨密度（BMD）联系起来。在11例人类肱骨尸体（平均年龄80岁）的6个不同的锚钉插入点插入钢丝线螺纹的螺钉式缝合锚，在与插入轴方向一致的力下进行载荷到失效试验，然后在这些点进行骨矿物质密度测量。大结节前、后侧的锚拔出力存在差异（P = 0.03），后侧的锚拔出力（154 N）高于前侧（96 N）。小结节（185 N前区和177 N后区）和肱骨颈（170 N前区和174 N后区）均无显著差异。它们在统计上与大结节相等。在测试的六个地点中，BMD没有明显的差异。没有证据支持在小结节、肱骨颈和大结节之间存在显著差异的假设。此外，没有证据支持肱骨近端载荷失效变化取决于骨密度的假设。骨矿物质密度似乎与螺钉型缝合锚钉的拔出强度无关。
The purpose of this study was to evaluate spatial variations in the pullout strength of a suture anchor in the proximal humerus, and to correlate any differences with the local bone mineral density (BMD). Screw-type suture anchors threaded with wire sutures were inserted at six different anchor insertion sites in 11 human cadaveric humeri (average age, 80 years), Load to failure tests with forces applied in line with the axis of insertion were performed, and bone mineral density measurements were then made at these sites. The greater tuberosity showed anterior and posterior differences in anchor pullout force (P =.03), with the posterior portion showing higher strength (154 N) than the anterior area (96 N). Neither the lesser tuberosity (185 N anterior area and 177 N posterior area) nor the humeral neck (170 N anterior area and 174 N posterior area) showed significant differences? and they were statistically equivalent to the greater tuberosity. There was no demonstrable difference in BMD at any of the six sites tested. There is no support for the hypothesis that significant differences in load to failure exist among the lesser tuberosity, humeral neck, and greater tuberosity. Also, there is no support for the hypothesis that the load to failure variations for the proximal humerus are dependent on BMD. Bone mineral density appears to have no correlation with the pullout strength of a screw-type suture anchor.