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Effect of differences in tendon properties on functionality of the passive stay apparatus in horses

Sander WS Gussekloo, Jerta Lankester, Wim Kersten and Willem Back UGent (2011) AMERICAN JOURNAL OF VETERINARY RESEARCH. 72(4). p.474-483
abstract
Objective-To determine the effect of differences in structural and mechanical tendon properties on functionality of the passive stay apparatus in horses. Sample-5 forelimbs each from nondwarf Friesians, dwarf Friesians, and ponies. Procedures-Harvested forelimbs were loaded to test the passive stay apparatus. Tendons that stabilize the distal portion of the limb (superficial digital flexor tendon, deep digital flexor tendon, and tendo interosseus (suspensory ligament)) were isolated, and force-elongation data were obtained. Bone lengths, initial tendon lengths, and initial tendon cross-sectional areas were measured, and Young moduli were calculated. A model was used to determine whether joint angles could be explained by these 4 factors only. Results-Dwarf limbs were unable to stand passively under loading because tendons that prevent overextension of the distal limb joints were too long and compliant to prevent overextension. Tendon properties of limbs of nondwarf Friesians appeared to be intermediate between those of ponies and dwarf Friesians. Conclusions and Clinical Relevance-Dysfunction of the passive stay apparatus in dwarf Friesians could be related to differences in structural and material properties of the tendons that result in hyperextension of the joints under loading. Nondwarf Friesians had intermediate tendon properties, which might be a breed-specific variation. Results indicated that certain tendon properties were associated with load failure of the stay apparatus and provided additional information about the functionality and requirements of the passive stay apparatus.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
LIMB, LOCOMOTION, FORELIMBS, FLEXOR, MECHANICAL-PROPERTIES, ELASTIC ENERGY-STORAGE, LIGAMENTS, STEP, MASS
journal title
AMERICAN JOURNAL OF VETERINARY RESEARCH
Am. J. Vet. Res.
volume
72
issue
4
pages
474 - 483
Web of Science type
Article
Web of Science id
000288928600007
JCR category
VETERINARY SCIENCES
JCR impact factor
1.269 (2011)
JCR rank
39/141 (2011)
JCR quartile
2 (2011)
ISSN
0002-9645
DOI
10.2460/ajvr.72.4.474
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1978867
handle
http://hdl.handle.net/1854/LU-1978867
date created
2012-01-05 14:08:51
date last changed
2015-06-17 09:53:39
@article{1978867,
  abstract     = {Objective-To determine the effect of differences in structural and mechanical tendon properties on functionality of the passive stay apparatus in horses. 
Sample-5 forelimbs each from nondwarf Friesians, dwarf Friesians, and ponies. 
Procedures-Harvested forelimbs were loaded to test the passive stay apparatus. Tendons that stabilize the distal portion of the limb (superficial digital flexor tendon, deep digital flexor tendon, and tendo interosseus (suspensory ligament)) were isolated, and force-elongation data were obtained. Bone lengths, initial tendon lengths, and initial tendon cross-sectional areas were measured, and Young moduli were calculated. A model was used to determine whether joint angles could be explained by these 4 factors only. 
Results-Dwarf limbs were unable to stand passively under loading because tendons that prevent overextension of the distal limb joints were too long and compliant to prevent overextension. Tendon properties of limbs of nondwarf Friesians appeared to be intermediate between those of ponies and dwarf Friesians. 
Conclusions and Clinical Relevance-Dysfunction of the passive stay apparatus in dwarf Friesians could be related to differences in structural and material properties of the tendons that result in hyperextension of the joints under loading. Nondwarf Friesians had intermediate tendon properties, which might be a breed-specific variation. Results indicated that certain tendon properties were associated with load failure of the stay apparatus and provided additional information about the functionality and requirements of the passive stay apparatus.},
  author       = {Gussekloo, Sander WS and Lankester, Jerta and Kersten, Wim and Back, Willem},
  issn         = {0002-9645},
  journal      = {AMERICAN JOURNAL OF VETERINARY RESEARCH},
  keyword      = {LIMB,LOCOMOTION,FORELIMBS,FLEXOR,MECHANICAL-PROPERTIES,ELASTIC ENERGY-STORAGE,LIGAMENTS,STEP,MASS},
  language     = {eng},
  number       = {4},
  pages        = {474--483},
  title        = {Effect of differences in tendon properties on functionality of the passive stay apparatus in horses},
  url          = {http://dx.doi.org/10.2460/ajvr.72.4.474},
  volume       = {72},
  year         = {2011},
}

Chicago
Gussekloo, Sander WS, Jerta Lankester, Wim Kersten, and Willem Back. 2011. “Effect of Differences in Tendon Properties on Functionality of the Passive Stay Apparatus in Horses.” American Journal of Veterinary Research 72 (4): 474–483.
APA
Gussekloo, S. W., Lankester, J., Kersten, W., & Back, W. (2011). Effect of differences in tendon properties on functionality of the passive stay apparatus in horses. AMERICAN JOURNAL OF VETERINARY RESEARCH, 72(4), 474–483.
Vancouver
1.
Gussekloo SW, Lankester J, Kersten W, Back W. Effect of differences in tendon properties on functionality of the passive stay apparatus in horses. AMERICAN JOURNAL OF VETERINARY RESEARCH. 2011;72(4):474–83.
MLA
Gussekloo, Sander WS, Jerta Lankester, Wim Kersten, et al. “Effect of Differences in Tendon Properties on Functionality of the Passive Stay Apparatus in Horses.” AMERICAN JOURNAL OF VETERINARY RESEARCH 72.4 (2011): 474–483. Print.