The Deadman Theory of Suture Anchors: Observations Along a South Texas Fence Line (Reprinted from Arthroscopy, vol 11, pg 119-123, 1995)

被引:12
作者
Burkhart, Stephen S. [1 ]
机构
[1] Univ Texas Hlth Sci Ctr San Antonio, Dept Orthopaed Surg, San Antonio, TX 78229 USA
关键词
D O I
10.1016/j.arthro.2014.06.001
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
摘要
Suture anchors are being increasingly reported as a means of fixation of torn rotator cuff tendons to bone. The author has developed a mechanical model for the suture anchore-rotator cuff construct based on an analogy to the deadman system used to stabilize a corner fence post. Using this model, one can demonstrate a mechanically favorable angle of insertion of the suture anchor (theta(1)) such that the anchor's pullout strength is increased at low angles of theta(1). In addition, the angle that the suture makes with the direction of pull of the rotator cuff (theta(2)) has a direct effect on tension in the suture. A low angle of theta(2) minimizes the total tension in the suture, thereby minimizing the chance of suture breakage.
引用
收藏
页码:895 / 899
页数:5
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