Vet Comp Orthop Traumatol 2006; 19(03): 187-189
DOI: 10.1055/s-0038-1632997
Case Report
Schattauer GmbH

A case of invertebral disc degeneration and prolapse with Schmorl's node formation in a sheep

D. Fews
1   Division of Veterinary Pathology, Infection and Immunity, School of Clinical Veterinary Science, University of Bristol, Bristol, UK, and Studio Veterinario Associato ‘Ziegler & Malfi’, Montefiascone (VT) Italy
,
P. J. Brown
1   Division of Veterinary Pathology, Infection and Immunity, School of Clinical Veterinary Science, University of Bristol, Bristol, UK, and Studio Veterinario Associato ‘Ziegler & Malfi’, Montefiascone (VT) Italy
,
G. L. D. Alterio
1   Division of Veterinary Pathology, Infection and Immunity, School of Clinical Veterinary Science, University of Bristol, Bristol, UK, and Studio Veterinario Associato ‘Ziegler & Malfi’, Montefiascone (VT) Italy
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Publikationsverlauf

Received 15. November 2005

Accepted 09. Januar 2006

Publikationsdatum:
08. Februar 2018 (online)

Summary

A Schmorl's node is the herniation of nucleus pulposus through the cartilaginous end plate of the vertebral disc into the body of the adjacent vertebra. Their formation is relatively common in people, and they may be symptomatic or asymptomatic. In contrast, there are few reported cases of Schmorl's nodes in non-human animals. This report describes a case of thoracic intervertebral disc degeneration, with Schmorl's node formation in a sheep.

 
  • References

  • 1 Kandziora F, Pflugmacher R, Scholz M. et al. Comparison between sheep and human cervical spines: An anatomical, radiographic, bone mineral density, and biomechanical study. Spine 2001; 26: 1028-37.
  • 2 Wilke HJ, Kettler A, Wenger KH. et al. Anatomy of the sheep spine and its comparison to the human spine. The Anatomicalal Record 1997; 247: 542-55.
  • 3 Reid JE, Meakin JR, Robins SP. et al. Sheep lumbar intervertebral discs as models for human discs. Clin Biomech (Bristol, Avon) 2002; 17: 312-4.
  • 4 Giavaresi G, Fini M, Torricelli Petal. The ovariectomised ewe model in the evaluation of biomaterials for prosthetic devices in spinal fixation. Int J Artif Organs 2001; 24: 814-20.
  • 5 Jubb KVF, Huxtable CR. The nervous system. In Pathology of Domestic Animals 4th edition. Jubb KVF, Kennedy PC, Palmer NP. (eds) Academic Press Ltd; London: 1993: 385.
  • 6 Palmer NP. Bones and joints. In Pathology of Domestic Animals 4th edition. Jubb KVF, Kennedy PC, Palmer NP. (eds) Academic Press Ltd; London: 1993: 153-7.
  • 7 Scott PR, Will RG. A report ofFroin's syndrome in five ovine thoracolumbar epidural abscesses. BrVetJ 1991; 147: 582-4.
  • 8 Palmer AC, Kelly WR, Ryde PS. Stenosis of the cervical vertebral canal in a yearling ram. Vet Rec 1981; 109: 53-5.
  • 9 Baker JR, Lyon DG. A case of intervertebral disc degeneration and prolapse with spondylosis in a sheep. Vet Rec 1975; 96: 290.
  • 10 Hill BD, O'Dempsey ND, Carlisle CH. Cervicothoracic vertebral subluxation causing ataxia in sheep. Aust Vet J 1993; 70: 156-7.
  • 11 Walters G, Coumas JM, Atkins CM. et al. Magnetic resonance imaging of acute symptomatic Schmorl's node formation. Pediatr Emerg Care 1991; 7: 294-6.
  • 12 Fahey V, Opeskin K, Silberstein M. et al. The pathogenesis of Schmorl's nodes in relation to acute trauma. Spine 1998; 23: 2272-2275.
  • 13 Simpson ST. Intervertebral disc disease. Vet Clin North Am Small Anim Pract 1992; 22: 889-97.
  • 14 Gomez M, Mieres M, Thibaut J. Cervical intravertebral disc herniation (Schmorl's node) in a dog. Arch Med Vet 2000; XXXII (1) 115-9.
  • 15 Seiler G, Hani H, Scheidegger J. et al. Staging of lumbar intervertebral disc degeneration in nonchondrodystrophic dogs using low-fieldmagnetic resonance imaging. Vet Radiol Ultrasound 2003; 44: 179-84.
  • 16 Wise M, Faulkner R. Unusual disc herniation in a dog: a case history report. Vet Radiol 1984; 25: 280-1.
  • 17 Shiroma JT, Weisbrode SE, Biller DS. et al. Pathological fracture of an aneurysmal bone cyst in a lumbar vertebra of a dog. J Am Anim Hosp Assoc 1993; 29: 434-7.
  • 18 Kawaguchi Y, Kanamori M, Ishihara H. et al. The association of lumbar disc disease with vitamin-D receptor gene polymorphism. J Bone Joint Surg Am 2002; 84-A (11) 2022-8.
  • 19 Hamanishi C, Kawabata T, Yosii T. et al. Schmorl's nodes on magnetic resonance imaging. Their incidence and clinical relevance. Spine 1994; 19: 450-3.
  • 20 Peng B, Wu W, Hou W. et al. The pathogenesis of Schmorl's nodes. J Bone Joint Surg Br 2003; 85-B: 879-82.