4.5 Article

The mechanical properties of the rabbit carpal tunnel subsynovial connective tissue

Journal

JOURNAL OF BIOMECHANICS
Volume 41, Issue 16, Pages 3519-3522

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.jbiomech.2007.06.004

Keywords

Carpal tunnel; Subsynovial connective tissue; Biomechanics; Rabbit; Flexor tendon

Funding

  1. NIH (NIAMS) [AR49823]
  2. Mayo Foundation

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The rabbit model is commonly used to study carpal tunnel syndrome (CTS). It has been proposed that the subsynovial connective tissue (SSCT) in the carpal tunnel may play it role in the etiology of CTS, but the material properties of the rabbit SSCT are unknown. The purpose of this study was to develop it method to measure the shear properties of the rabbit SSCT. In six rabbit cadaver forepaws, the excursion of the third digit flexor digitorum superficialis (FDS) and load to failure of the SSCT were measured ill it custom device. At full The mean excursion to full flexion in this model was 7.08 mm (S.D. 0.77). The mean shearing force at full flexion was 317 1 (S.D. 166). At full flexion percentage of maximum shear force in the SSCT was 54.5% (S.D. 19.4). The mean energy absorbed in full flexion was 0.29 m.J. (S.D. 0.31). The mean excursion needed to reach 5% of the maximum shear force was 3.04 mm (S.D. 0.99). The testing model presented in this Study demonstrates structural parameters to evaluate the shear properties of the SSCT in it rabbit model. The data presented could be used for estimating sample sizes in a more comprehensive Study of the effect of CTS on the SSCT properties. (C) 2008 Elsevier Ltd. All rights reserved.

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