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Differences in the morphology of distal border synovial invaginations of the distal sesamoid bone in the horse as evaluated by computed tomography compared with radiography

Sarah Claerhoudt UGent, H-J Erik Bergman, Henk van der Veen, Luc Duchateau UGent, Els Raes UGent and Jimmy Saunders UGent (2012) EQUINE VETERINARY JOURNAL. 44(6). p.679-683
abstract
Reasons for performing study: Distal border synovial invaginations of the distal sesamoid bone are radiographically assessed during the selection process of horses admitted as breeding stallions or in purchase examinations. Nowadays, many moderately or some deeply penetrating proximally enlarged synovial invaginations are considered as moderate or severe radiographic findings. Objective: To measure the difference between and agreement of the morphology of distal border synovial invaginations on radiography vs. computed tomography (CT). It was hypothesised that the morphology of distal border synovial invaginations would be better evaluable on CT compared with radiography. Methods: Computed tomography scans and 3 dorsoproximal-palmarodistal oblique (DPr-PaDiO) radiographs were obtained on 50 cadaver forefeet from 25 Warmblood horses. Computed tomography was assumed to be the gold standard. The number, shape and depth of penetration of distal border synovial invaginations into the distal sesamoid bone were evaluated with both methods, and the comparison of their measurements was statistically described. Results: A statistically significant mean difference for number of distal synovial invaginations between CT and all 3 DPr-PaDiO projections was found and was approximately equal to 2, meaning that CT permits visualisation of an average of 2 more invaginations than radiography. In none of the cases did radiography have a higher number observed than CT. A large variation in the difference of measurements for depth of penetration against their mean difference between CT and the 3 radiographic projections was seen. Radiography underestimated the depth of invaginations, and more so when these were deeper. There was no statistically significant mean difference found between the techniques for depth. A moderate to good agreement between measurements on CT and the three DPr-PaDiO projections for shape was seen, in which the D55°Pr-PaDiO projection showed the best agreement. A high specificity (90-99%) and low sensitivity (65%) for all projections for shape were found. Conclusions and potential relevance: Radiography differs considerably from CT concerning the morphology of distal navicular border synovial invaginations. For the evaluation of the number, depth and shape of distal synovial invaginations in the distal sesamoid bone, radiography shows only partially the morphology seen on CT.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
horse, computed tomography, distal sesamoid bone, Warmblood horse, radiography, synovial invagination, NAVICULAR BONE, DISEASE, AGREEMENT, FORELIMB
journal title
EQUINE VETERINARY JOURNAL
Equine Vet. J.
volume
44
issue
6
pages
679 - 683
Web of Science type
Article
Web of Science id
000310553100012
JCR category
VETERINARY SCIENCES
JCR impact factor
2.286 (2012)
JCR rank
8/142 (2012)
JCR quartile
1 (2012)
ISSN
0425-1644
DOI
10.1111/j.2042-3306.2012.00547.x
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2964458
handle
http://hdl.handle.net/1854/LU-2964458
date created
2012-07-26 15:18:55
date last changed
2013-07-05 13:53:10
@article{2964458,
  abstract     = {Reasons for performing study: Distal border synovial invaginations of the distal sesamoid bone are radiographically assessed during the selection process of horses admitted as breeding stallions or in purchase examinations. Nowadays, many moderately or some deeply penetrating proximally enlarged synovial invaginations are considered as moderate or severe radiographic findings. Objective: To measure the difference between and agreement of the morphology of distal border synovial invaginations on radiography vs. computed tomography (CT). It was hypothesised that the morphology of distal border synovial invaginations would be better evaluable on CT compared with radiography. Methods: Computed tomography scans and 3 dorsoproximal-palmarodistal oblique (DPr-PaDiO) radiographs were obtained on 50 cadaver forefeet from 25 Warmblood horses. Computed tomography was assumed to be the gold standard. The number, shape and depth of penetration of distal border synovial invaginations into the distal sesamoid bone were evaluated with both methods, and the comparison of their measurements was statistically described. Results: A statistically significant mean difference for number of distal synovial invaginations between CT and all 3 DPr-PaDiO projections was found and was approximately equal to 2, meaning that CT permits visualisation of an average of 2 more invaginations than radiography. In none of the cases did radiography have a higher number observed than CT. A large variation in the difference of measurements for depth of penetration against their mean difference between CT and the 3 radiographic projections was seen. Radiography underestimated the depth of invaginations, and more so when these were deeper. There was no statistically significant mean difference found between the techniques for depth. A moderate to good agreement between measurements on CT and the three DPr-PaDiO projections for shape was seen, in which the D55{\textdegree}Pr-PaDiO projection showed the best agreement. A high specificity (90-99\%) and low sensitivity (65\%) for all projections for shape were found. Conclusions and potential relevance: Radiography differs considerably from CT concerning the morphology of distal navicular border synovial invaginations. For the evaluation of the number, depth and shape of distal synovial invaginations in the distal sesamoid bone, radiography shows only partially the morphology seen on CT.},
  author       = {Claerhoudt, Sarah and Bergman, H-J Erik and van der Veen, Henk and Duchateau, Luc and Raes, Els and Saunders, Jimmy},
  issn         = {0425-1644},
  journal      = {EQUINE VETERINARY JOURNAL},
  keyword      = {horse,computed tomography,distal sesamoid bone,Warmblood horse,radiography,synovial invagination,NAVICULAR BONE,DISEASE,AGREEMENT,FORELIMB},
  language     = {eng},
  number       = {6},
  pages        = {679--683},
  title        = {Differences in the morphology of distal border synovial invaginations of the distal sesamoid bone in the horse as evaluated by computed tomography compared with radiography},
  url          = {http://dx.doi.org/10.1111/j.2042-3306.2012.00547.x},
  volume       = {44},
  year         = {2012},
}

Chicago
Claerhoudt, Sarah, H-J Erik Bergman, Henk van der Veen, Luc Duchateau, Els Raes, and Jimmy Saunders. 2012. “Differences in the Morphology of Distal Border Synovial Invaginations of the Distal Sesamoid Bone in the Horse as Evaluated by Computed Tomography Compared with Radiography.” Equine Veterinary Journal 44 (6): 679–683.
APA
Claerhoudt, S., Bergman, H.-J. E., van der Veen, H., Duchateau, L., Raes, E., & Saunders, J. (2012). Differences in the morphology of distal border synovial invaginations of the distal sesamoid bone in the horse as evaluated by computed tomography compared with radiography. EQUINE VETERINARY JOURNAL, 44(6), 679–683.
Vancouver
1.
Claerhoudt S, Bergman H-JE, van der Veen H, Duchateau L, Raes E, Saunders J. Differences in the morphology of distal border synovial invaginations of the distal sesamoid bone in the horse as evaluated by computed tomography compared with radiography. EQUINE VETERINARY JOURNAL. 2012;44(6):679–83.
MLA
Claerhoudt, Sarah, H-J Erik Bergman, Henk van der Veen, et al. “Differences in the Morphology of Distal Border Synovial Invaginations of the Distal Sesamoid Bone in the Horse as Evaluated by Computed Tomography Compared with Radiography.” EQUINE VETERINARY JOURNAL 44.6 (2012): 679–683. Print.