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Technical Note| Volume 30, ISSUE 8, P895-899, August 2014

Reprint of: The Deadman Theory of Suture Anchors: Observations Along a South Texas Fence Line

  • Stephen S. Burkhart
    Correspondence
    Address correspondence to Stephen S. Burkhart, M.D., The San Antonio Orthopaedic Group, 150 E. Sonterra Blvd, Suite 300, San Antonio, TX 78258, U.S.A.
    Affiliations
    Department of Orthopaedic Surgery, the University of Texas Health Science Center at San Antonio, Texas, U.S.A.
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DOI:https://doi.org/10.1016/j.arthro.2014.06.001
Reprint of: The Deadman Theory of Suture Anchors: Observations Along a South Texas Fence Line
Previous ArticleWhat Is the Optimum Insertion Angle of a Suture Anchor?
Next ArticleThe Effect of Insertion Angle on the Pullout Strength of Threaded Suture Anchors: A Validation of the Deadman Theory

      Abstract

      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 anchor–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 (θ1) such that the anchor's pullout strength is increased at low angles of θ1. In addition, the angle that the suture makes with the direction of pull of the rotator cuff (θ2) has a direct effect on tension in the suture. A low angle of θ2 minimizes the total tension in the suture, thereby minimizing the chance of suture breakage.
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      References

      1. Bartlett EC. Arthroscopic rotator cuff repair. Presented at the Arthroscopy Association of North America, Fall Course, Albuquerque, NM, October 7, 1993.

        View in Article

      2. Bachner EJ, Snyder SJ. Arthroscopic fixation of the torn rotator cuff tendon using suture anchors and permanent mattress sutures: A preliminary report. Presented at the Arthroscopy Association of North America, 1994 Speciality Day Meeting, New Orleans, LA, February 27, 1994.

        View in Article

      3. Tippett JW. Arthroscopic repair of the rotator cuff using plastic suture anchors. Presented at the Arthroscopy Association of North America, 1994 Specialty Day Meeting, New Orleans, LA, February 27, 1994.

        View in Article

      4. Faris ME. Personal communication, January 1993.

        View in Article

      5. Burkhart SS. The deadman theory of suture anchors. Presented at Update 1994: New Perspectives in Arthroscopy and Sports Medicine, Palm Springs, CA, March 16-19, 1994.

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      Article info

      Footnotes

      DOI of original article: http://dx.doi.org/10.1016/0749-8063(95)90100-0.

      This article is a reprint of a previously published article. For citation purposes, please use the original publication details: Arthroscopy 1995;11:119-123

      Identification

      DOI: https://doi.org/10.1016/j.arthro.2014.06.001

      Copyright

      © 2014 Published by Elsevier Inc.

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