Bovis ISSN 2398-2993

Osseous sequestrum

Synonym(s): sequestrectomy, sequestra, bone fragment

Contributor(s): Lisa Whitfield , Alexander Corbishley

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Introduction

  • Osseous sequestration is a sporadic problem encountered in cattle, associated frequently with trauma to a site with minimal soft tissue cover (such as limb trapped between metal bars). The limbs, skull, and the ribs are the most commonly encountered sites for these lesions.
  • In growing animals, sequestration may occur in the growth plate following hematogenous spread of bacteria.
  • The development of a persistent, purulent discharge from a draining tract over the site of sequestration will preclude transport in many countries.
  • Excessive periosteal reaction over and around the site may impair normal function and result in persistent low to moderate grade lameness, which may also preclude transport.
  • Surgical removal of the sequestrum will in the majority of cases hasten recovery of normal function.
  • Successful medical management has been recorded, however, the medical approach often requires a longer period of recovery, may be more expensive overall due to prolonged courses of antimicrobials and pain relief, and is associated with a higher failure rate compared to surgical management.

Uses

Advantages

  • Surgical removal will shorten the recovery period.
  • Once removed, recurrence of presenting problem should not occur.
  • Long term aesthetic appearance is better.
  • Higher rate of success compared to medical management.

Disadvantages

  • Short term costs are greater.
  • Post-operative wound care requires some time commitment.

Requirements

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Preparation

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Procedure

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Aftercare

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Outcomes

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Prognosis

  • Excellent, if the trauma is restricted to localized areas.

Further Reading

Publications

Refereed Papers

  • Recent references from PubMed and VetMedResource.
  • Valentino L W, St Jean G, Anderson D E, Desroches  A, Kersting K, Lopez M J, Adams S B, Huhn J, Mueller E, Cohen N D (2000) Osseous sequestration in cattle: 110 cases (1987-1997). Journal of the American Veterinary Medical Association 217 (3), 376-383 PubMed.
  • Firth E C (1987) Bone sequestration in horses and cattle. Australian Veterinary Journal 64 (3), 65-69.

Organisation(s)

  • Massey Univeristy Veterinary Teaching Hospital - Farm.


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