ISSN 2398-2969      

Radius / ulna: fracture of proximal ulnar associated with luxation of the radial head

icanis

Synonym(s): Monteggia fracture


Introduction

  • Uncommon.
  • Site: any level, although proximal ulna fracture most common.
  • Usually results in rupture of annular ligament.
  • Treatment: open reduction as soon as possible.
  • Lesions can be classified into 4 types on the basis of direction of the dislocation of the radial head and angulation of the ulnar fracture. Cranial dislocation of the radial head, with cranial angulation of the ulnar fracture (type 1 lesion) is the most common.

Pathogenesis

Etiology

  • Direct trauma.

Pathophysiology

  • Ulna: can fracture at any level, but most common proximally.
  • The more distal the injury the more severe the damage to the interosseous ligament.
  • Luxation of radial head usually results from, or is associated with rupture of annular ligament.

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.
  • Schwarz P D, Schrader S C (1984) Ulnar fracture and dislocation of the proximal radial epiphysis in the dog and cat. JAVMA 185 (2), 190-194 PubMed.

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