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Equine veterinary journal1999; 31(2); 116-120; doi: 10.1111/j.2042-3306.1999.tb03803.x

Aetiopathogenesis of parasagittal fractures of the distal condyles of the third metacarpal and third metatarsal bones–review of the literature.

Abstract: Fractures are the cause of considerable morbidity and mortality among Thoroughbred racehorses. A significant proportion of these injuries occur in the absence of any particular traumatic incident. Evidence of prefracture pathology interpreted as fatigue damage has been identified in some such cases, but the aetiology of many of these so-called 'spontaneous' fractures remains obscure. Parasagittal fractures of the third metacarpal (McIII) and third metatarsal (MtIII) bones are one of the more common fractures to affect Thoroughbred racehorses. The configuration of each of these fracture types is highly consistent, suggesting a predisposition of the bones to these injuries. Several theories have been proposed to explain the aetiopathogenesis of these fractures although none has so far stood up to critical examination. The current paper reviews the literature relating to parasagittal fractures of McIII and MtIII.
Publication Date: 1999-04-23 PubMed ID: 10213423DOI: 10.1111/j.2042-3306.1999.tb03803.xGoogle Scholar: Lookup
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  • Journal Article
  • Research Support
  • Non-U.S. Gov't
  • Review

Summary

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This research focuses on reviewing the literature about common fractures observed in Thoroughbred racehorses, specifically parasagittal fractures of the third metacarpal and third metatarsal bones, in an attempt to better understand their cause and development.

Introduction of Subject Matter

  • The paper talks about fractures in Thoroughbred racehorses, which can cause significant morbidity and mortality. Interestingly, many of these fractures occur without any distinct traumatic incident.
  • The specific type of fracture under discussion is parasagittal fractures of the third metacarpal (McIII) and third metatarsal (MtIII) bones. These are some of the most common injuries seen in these horses.

Point of Investigation

  • There is some indication in certain cases, that fatigue damage may precede the fracture, but the main cause behind many such ‘spontaneous’ fractures is still unclear.
  • Given the consistency in the configuration of these fractures, it appears that the bones might be predisposed to such injuries.

Existing Explanations

  • Several theories have been proposed to explain the aetiopathogenesis (cause and development) of these fractures.
  • However, none of these theories have been definitively proven or widely accepted.

Purpose of the Paper

  • The aim of this research is a comprehensive review of existing literature regarding parasagittal fractures of the third metacarpal and third metatarsal bones in Thoroughbred racehorses.
  • The paper seeks to gather insights about these fractures from existing studies and to explore possible explanations for their occurrence and development.

Final Thoughts

  • This overview indicates a significant lack of understanding about these common injuries. A more thorough understanding of parasagittal fractures could lead to better treatment and prevention strategies and ultimately improve the welfare of Thoroughbred racehorses.

Cite This Article

APA
Riggs CM. (1999). Aetiopathogenesis of parasagittal fractures of the distal condyles of the third metacarpal and third metatarsal bones–review of the literature. Equine Vet J, 31(2), 116-120. https://doi.org/10.1111/j.2042-3306.1999.tb03803.x

Publication

ISSN: 0425-1644
NlmUniqueID: 0173320
Country: United States
Language: English
Volume: 31
Issue: 2
Pages: 116-120

Researcher Affiliations

Riggs, C M
  • Department of Veterinary Clinical Science and Animal Husbandry, University of Liverpool, Neston, UK.

MeSH Terms

  • Animals
  • Female
  • Fractures, Bone / etiology
  • Fractures, Bone / surgery
  • Fractures, Bone / veterinary
  • Fractures, Spontaneous / etiology
  • Fractures, Spontaneous / surgery
  • Fractures, Spontaneous / veterinary
  • Horses / injuries
  • Horses / surgery
  • Male
  • Metacarpal Bones
  • Metatarsal Bones

Citations

This article has been cited 7 times.
  1. Johnston GCA, Ahern BJ, Palmieri C, Young AC. Imaging and Gross Pathological Appearance of Changes in the Parasagittal Grooves of Thoroughbred Racehorses. Animals (Basel) 2021 Nov 24;11(12).
    doi: 10.3390/ani11123366pubmed: 34944142google scholar: lookup
  2. Bellone RR, Ocampo NR, Hughes SS, Le V, Arthur R, Finno CJ, Penedo MCT. Warmblood fragile foal syndrome type 1 mutation (PLOD1 c.2032G>A) is not associated with catastrophic breakdown and has a low allele frequency in the Thoroughbred breed. Equine Vet J 2020 May;52(3):411-414.
    doi: 10.1111/evj.13182pubmed: 31502696google scholar: lookup
  3. Stewart HL, Kawcak CE. The Importance of Subchondral Bone in the Pathophysiology of Osteoarthritis. Front Vet Sci 2018;5:178.
    doi: 10.3389/fvets.2018.00178pubmed: 30211173google scholar: lookup
  4. Maeda Y, Hanada M, Oikawa MA. Epidemiology of racing injuries in Thoroughbred racehorses with special reference to bone fractures: Japanese experience from the 1980s to 2000s. J Equine Sci 2016;27(3):81-97.
    doi: 10.1294/jes.27.81pubmed: 27703403google scholar: lookup
  5. McCarty CA, Thomason JJ, Gordon KD, Burkhart TA, Milner JS, Holdsworth DW. Finite-Element Analysis of Bone Stresses on Primary Impact in a Large-Animal Model: The Distal End of the Equine Third Metacarpal. PLoS One 2016;11(7):e0159541.
    doi: 10.1371/journal.pone.0159541pubmed: 27459189google scholar: lookup
  6. Noble P, Singer ER, Jeffery NS. Does subchondral bone of the equine proximal phalanx adapt to race training?. J Anat 2016 Jul;229(1):104-13.
    doi: 10.1111/joa.12478pubmed: 27075139google scholar: lookup
  7. El Brini Z, Mhar I, Bouktaib FE, Piro M, Daniel C, Alyakine H. Common Radiographic Findings in Moroccan Working Equids: A Retrospective Study (2015-2022). Vet Sci 2026 Jan 8;13(1).
    doi: 10.3390/vetsci13010060pubmed: 41600716google scholar: lookup