Equis ISSN 2398-2977

Tarsus: fracture

Contributor(s): Prof Gary M Baxter, Chris Whitton

Introduction

Pathogenesis

Etiology

  • Direct impact   →   tibial malleoli, trochlear ridges, calcaneal tuber and fourth tarsal bone (the latter usually in combination with injury to fourth metatarsal bone   MC / MT 2 and 4: fracture  ).
  • Trapped limb, eg in cattle grid or fence   →   luxations and fractures of the body of the talus, other major tarsal fractures.

Pathophysiology

  • Strong collateral and periarticular ligaments plus insertions of cranial tibial and peroneus tertius muscles provide marked stability to the joint.
  • Direct blows to the hock can result in an open fracture and   →   osteomyelitis, deep digital flexor tenosynovitis   Tarsus: tarsal sheath tenosynovitis  and luxation of the superficial digital flexor tendon   SDFT: luxation  .

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.
  • Kearney C, McAllister H & Jenner F (2010)Conservative management of comminuted central tarsal bone fracture and joint instability in a horse.Equine Vet Educ22(3), 107-111 VetMedResource.
  • Kelmer G, Wilson D A & Essman S C (2008)Computed tomography assisted repair of a central tarsal bone slab fracture in a horse.Equine Vet Educ20(6), 284-287 VetMedResource.
  • Clegg P (2006)Conditions of the equine tarsal joints.UK Vet11(7), 6-12 VetMedResource.
  • Kettunen Jet al(1992)Fracture of the lateral talus process- a case report.Acta Orthopedica Scandinavica63(3), 356-357 PubMed.
  • Martin F & Herthel D J (1992)Central tarsal bone fractures in 6 horses - report on the use of a cannulated compression bone screw.Equine Pract14(10), 23-27 VetMedResource.
  • Wright I M (1992)Fractures of the lateral malleolus of the tibia in 16 horses.Equine Vet J24(6), 424-429 PubMed.
  • Moll H Det al(1987)Traumatic tarsal luxation repaired without internal fixation in three horses and three ponies.JAVMA190, 297-300 PubMed.
  • Stickle R L and Stick J A (1987)Non-displaced slab fracture of the central tarsal bone.JAVMA191, 579-580.
  • Tulamo R Met al(1983)Fractures of the central and third tarsal bones in horses.JAVMA182, 1234-1238 PubMed.
  • Sack W O and Ferraglio S (1978)Clinically important structures of the equine hock.JAVMA172, 277-280 PubMed.


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