Canis ISSN: 2398-2942

Ulnar: distal plate closure

Synonym(s): Distal ulnar plate closure

Contributor(s): Prof Walter Renberg

Introduction

  • Higher incidence than distal radial growth plate closure Radius: distal growth plate closure.
  • Cause: direct trauma, known or unknown.
  • Signs: bowing of radius, deviation of carpus (carpal valgus), external rotation at the carpus, subluxation of elbow joint, osteoarthritis.
  • Treatment: surgical intervention to restore elbow joint to normal congruity and lengthen/straighten entire antebrachium.
  • Prognosis: fair - degenerative joint disease (DJD) a common sequela.

Pathogenesis

Etiology

  • Trauma.

Pathophysiology

  • Elbow changes caused either by relative overgrowth of radius in proximal and lateral direction, or displacement of proximal ulna distally.
  • Distal humerus is squeezed between radial head and anconeal process - subluxation of joint and osteoarthritis.

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.
  • Morgan P W, Miller C W (1994) Osteotomy for correction of premature growth plate closure in 24 dogs. Vet Comp Orthopedic Trauma (3), 129-135 VetMedResource.
  • Forell E B & Schwarz P D (1993) Use of external skeletal fixation for treatment of angular deformity secondary to premature distal ulnar physeal closure. JAAHA 29 (5), 460-476 VetMedResource.


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