Equis ISSN 2398-2977

MCP / MTP joint: chronic proliferative synovitis

Synonym(s): Villonodular synovitis

Contributor(s): Prof Gary M Baxter, Jessica A Kidd-Millar, Graham Munroe, Chris Whitton

Introduction

Pathogenesis

Etiology

  • Trauma.

Pathophysiology

  • Trauma to fetlock   →   hematoma   →   reactive inflammation of synovium (synovitis)    →   proliferation of fibrous tissue involving part or all of the synovial pad.
  • Chronic hyperextension of fetlock especially in racehorses.
  • Can occur concurrently with/secondary to dorsal phalangeal chip fractures.
  • Can occur secondary to osteoarthritis   Musculoskeletal: osteoarthritis (joint disease)  .

Diagnosis

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Treatment

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Outcomes

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Mäkelä O, Sukura A, Penttilä P, Hiltunen J & Tulamo R M (2003)Radiation synovectomy with holmium-166 ferric hydroxide macroaggregate in equine metacarpophalangeal and metatarsophalangeal joints.Vet Surg 32(4), 402-409 PubMed.
  • Murphy D J & Nixon A J (2001)Arthroscopic laser extirpation of metacarpophalangeal synovial pad proliferation in eleven horses.Equine Vet J 33(3), 296-301 PubMed.
  • Kannegieter N J (1990)Chronic proliferative synovitis of the equine metacarpophalangeal joint.Vet Rec 127(1), 8-10 PubMed.
  • McIlwraith CW (1984)Experiences in diagnostic and surgical arthroscopy in the horse.Equine Vet J 16(1), 11-19 PubMed.


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