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Modeling and Analysis of Proximal Tibial Growth Plate Fractures in Adolescents

[+] Author Affiliations
Susan Basile, Xiaopeng Zhao

University of Tennessee, Knoxville, TN

Paper No. SBC2009-203651, pp. 781-782; 2 pages
doi:10.1115/SBC2009-203651
From:
  • ASME 2009 Summer Bioengineering Conference
  • ASME 2009 Summer Bioengineering Conference, Parts A and B
  • Lake Tahoe, California, USA, June 17–21, 2009
  • Conference Sponsors: Bioengineering Division
  • ISBN: 978-0-7918-4891-3
  • Copyright © 2009 by ASME

abstract

Today, children and adolescents are participating heavily in organized athletics year-round. Each year, approximately one third of these children will experience a serious injury requiring a doctor’s or hospital visit. Physeal, or growth plate fractures, are one such type of overuse injury commonly seen in adolescents. At the knee joint, injuries in adolescents occur most often in the proximal region of the tibia as opposed to the middle or distal thirds of the tibia, or in the soft tissues of the joint, as seen in adults. While the exact reasons for this difference have not been directly and definitively quantified, several hypotheses have been suggested. They include differences in movement strategies, changes in limb inertial and material properties, and the timing of these changes in relation to one another. This work aims to compare the changes in and interaction of inertial properties of the lower leg and forces transmitted through the patellar tendon, along with tibiofemoral contact before, during, and after puberty. Forces were first determined using Kane’s method of dynamics in conjunction with an isometric knee extension study yielding separate adult and youth data. These results were then extended to a finite element analysis to load tibial models and investigate changes in stress and strain at the proximal tibia.

Copyright © 2009 by ASME

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