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Pathogenesis of epiphyseal osteochondrosis

Sheila Laverty1, Christiane Girard

  • 1Comparative Orthopaedic Research Laboratory, Department of Clinical Sciences Faculty of Veterinary Medicine, University of Montreal, Quebec, Canada. Sheila.laverty@umontreal.ca

Veterinary Journal (London, England : 1997)
|May 8, 2013
PubMed

Insights

Osteochondrosis (OC) is a developmental disease affecting young animals, characterized by cartilage death and growth issues. Altered type II collagen metabolism is a suspected factor, requiring further research in susceptible animals.

Area of Science:

  • Veterinary Pathology
  • Developmental Biology
  • Biochemistry

Background:

  • Osteochondrosis (OC) is a developmental disease of the articular epiphyseal cartilage complex (AECC) in young animals.
  • It involves focal chondronecrosis and impaired endochondral ossification, potentially leading to osteochondritis dissecans (OCD).
  • Existing hypotheses include ischemia of growth cartilage or altered type II collagen metabolism.

Purpose of the Study:

  • To investigate the etiopathogenesis of Osteochondrosis (OC) in the articular epiphyseal cartilage complex (AECC).
  • To explore the roles of growth cartilage ischemia and type II collagen metabolism in OC development.
  • To identify the precise cause of vascular necrosis and the significance of type II collagen in OC.

Main Methods:

  • Review of existing hypotheses on OC etiopathogenesis.
  • Analysis of studies measuring biomarkers in serum and synovial fluid.
  • Speculation on the role of altered type II collagen metabolism based on biomarker data.

Main Results:

  • Studies show increased type II collagen synthesis in young animals with OC.
  • No comparable increase in cartilage matrix proteoglycan synthesis was observed.
  • These findings suggest a potential role for altered type II collagen metabolism in early OC changes.

Conclusions:

  • Altered type II collagen metabolism is speculated to be involved in the early stages of Osteochondrosis (OC).
  • Further research on OC-susceptible animals in utero and early life is needed.
  • Elucidating the cause of vascular necrosis and the exact role of type II collagen is crucial for understanding OC.

Keywords:
EtiopathogenesisHorseJuvenile disordersOsteochondrosis

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