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The effect of the trabecular microstructure on the pullout strength of suture anchors.

Publication ,  Journal Article
Yakacki, CM; Poukalova, M; Guldberg, RE; Lin, A; Saing, M; Gillogly, S; Gall, K
Published in: Journal of biomechanics
July 2010

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 5mm 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.

Duke Scholars

Published In

Journal of biomechanics

DOI

EISSN

1873-2380

ISSN

0021-9290

Publication Date

July 2010

Volume

43

Issue

10

Start / End Page

1953 / 1959

Related Subject Headings

  • X-Ray Microtomography
  • Tensile Strength
  • Suture Techniques
  • Suture Anchors
  • Middle Aged
  • Humerus
  • Humans
  • Bone Density
  • Biomedical Engineering
  • Aged
 

Citation

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ICMJE
MLA
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Yakacki, C. M., Poukalova, M., Guldberg, R. E., Lin, A., Saing, M., Gillogly, S., & Gall, K. (2010). The effect of the trabecular microstructure on the pullout strength of suture anchors. Journal of Biomechanics, 43(10), 1953–1959. https://doi.org/10.1016/j.jbiomech.2010.03.013
Yakacki, Christopher M., Mariya Poukalova, Robert E. Guldberg, Angela Lin, Minn Saing, Scott Gillogly, and Ken Gall. “The effect of the trabecular microstructure on the pullout strength of suture anchors.Journal of Biomechanics 43, no. 10 (July 2010): 1953–59. https://doi.org/10.1016/j.jbiomech.2010.03.013.
Yakacki CM, Poukalova M, Guldberg RE, Lin A, Saing M, Gillogly S, et al. The effect of the trabecular microstructure on the pullout strength of suture anchors. Journal of biomechanics. 2010 Jul;43(10):1953–9.
Yakacki, Christopher M., et al. “The effect of the trabecular microstructure on the pullout strength of suture anchors.Journal of Biomechanics, vol. 43, no. 10, July 2010, pp. 1953–59. Epmc, doi:10.1016/j.jbiomech.2010.03.013.
Yakacki CM, Poukalova M, Guldberg RE, Lin A, Saing M, Gillogly S, Gall K. The effect of the trabecular microstructure on the pullout strength of suture anchors. Journal of biomechanics. 2010 Jul;43(10):1953–1959.
Journal cover image

Published In

Journal of biomechanics

DOI

EISSN

1873-2380

ISSN

0021-9290

Publication Date

July 2010

Volume

43

Issue

10

Start / End Page

1953 / 1959

Related Subject Headings

  • X-Ray Microtomography
  • Tensile Strength
  • Suture Techniques
  • Suture Anchors
  • Middle Aged
  • Humerus
  • Humans
  • Bone Density
  • Biomedical Engineering
  • Aged