Common lesions of the distal end of the third metacarpal/metatarsal bone in racehorse catastrophic breakdown injuries
Open Access
- 6 July 2017
- journal article
- research article
- Published by SAGE Publications in Journal of Veterinary Diagnostic Investigation
- Vol. 29 (4), 431-436
- https://doi.org/10.1177/1040638717717948
Abstract
Equine catastrophic skeletal breakdown injury is a serious issue within the racing industry, given the impact on equine and human health. The metacarpo- and metatarso-phalangeal (fetlock) joints are common sites of catastrophic injury. However, lesions involving articular cartilage, subchondral bone, and synovium are commonly identified within the fetlock of the contralateral limb; hence, it is imperative that lesions in both limbs are evaluated and characterized during postmortem examination. Bone and articular cartilage changes typically occur in specific locations, related to cyclic fetlock load and overextension during high-speed exercise. Associations between preexisting degenerative fetlock lesions and catastrophic injury are a focus of continued research. These lesions often occur because of adaptive failure related to cumulative damage. Further investigation of these lesions is imperative to determine their impact on equine performance or injury. Ultimately, consistent documentation of catastrophic versus non-catastrophic osteochondral lesions provided by pathologists, in the context of training history, diagnostic imaging, and the presence or absence of catastrophic injury, will contribute to further understanding of skeletal responses associated with catastrophic failure.Keywords
This publication has 33 references indexed in Scilit:
- Bones and JointsPublished by Elsevier BV ,2016
- Magnetic Resonance Imaging of the Dorsal Proximal Synovial Plica of the Equine Metacarpo-/Metatarsophalangeal JointAnatomia, Histologia, Embryologia, 2014
- Thoroughbred horses in race training have lower levels of subchondral bone remodelling in highly loaded regions of the distal metacarpus compared to horses resting from trainingThe Veterinary Journal, 2014
- Frequency distributions of 174 fractures of the distal condyles of the third metacarpal and metatarsal bones in 167 Thoroughbred racehorses (1999–2009)Equine Veterinary Journal, 2012
- Post mortem evaluation of palmar osteochondral disease (traumatic osteochondrosis) of the metacarpo/metatarsophalangeal joint in Thoroughbred racehorsesEquine Veterinary Journal, 2009
- The response of bone, articular cartilage and tendon to exercise in the horseJournal of Anatomy, 2006
- Musculoskeletal responses of 2-year-old Thoroughbred horses to early training. 8. Quantitative back-scattered electron scanning electron microscopy and confocal fluorescence microscopy of the epiphysis of the third metacarpal boneNew Zealand Veterinary Journal, 2005
- Fetlock joint kinematics differ with age in thoroughbred racehorsesJournal of Biomechanics, 2002
- Metacarpophalangeal Joint Synovial Pad Fibrotic Proliferation in 63 HorsesVeterinary Surgery, 1996
- Adaptation of diaphyseal structure with aging and increased mechanical usage in the adult rat: A histomorphometrical and biomechanical studyThe Anatomical Record, 1991