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Influence of Tibial Eminence Size on the ACL Injury

[+] Author Affiliations
Ariful I. Bhuiyan, Javad Hashemi, Ryan E. Breighner

Texas Tech University, Lubbock, TX

James R. Slauterbeck

University of Vermont, Burlington, VT

Paper No. IMECE2011-63555, pp. 191-193; 3 pages
doi:10.1115/IMECE2011-63555
From:
  • ASME 2011 International Mechanical Engineering Congress and Exposition
  • Volume 2: Biomedical and Biotechnology Engineering; Nanoengineering for Medicine and Biology
  • Denver, Colorado, USA, November 11–17, 2011
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5488-4
  • Copyright © 2011 by ASME

abstract

The geometry of the tibial plateau as well as the femoral condyles are emerging as key parameters to be studied as anterior cruciate ligament (ACL) injury risk factors. In this paper, we study the role of tibial eminence size as a potentially important characteristic of the tibial plateau in loading and or protecting the ACL from injury. The volume of Tibial eminence in 52 uninjured controls (32 women and 20 men) and 44 anterior cruciate ligament-injured cases (23 women and 21 men) were measured using magnetic resonance images and 3-d image reconstruction using commercial software Analyze 9.0. We hypothesized that the Individuals with a small tibial eminence are at increased risk of suffering an anterior cruciate ligament injury compared with those with larger tibial eminences. Based on t-tests, we established that the uninjured controls had larger tibial eminences (p<0.05) compared with the injured cases. Biomechanically speaking a larger tibial eminence could prevent excessive medio-lateral movement of femur with respect to the tibia. A larger eminence could also protect the knee from large magnitude rotational movements. We suggest that future studies are needed to confirm this relationship and to evaluate the potential role of the tibial eminence size in the risk of ACL injury.

Copyright © 2011 by ASME

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