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Influence of intervertebral disc fenestration at the herniation site in association with hemilaminectomy on recurrence in chondrodystrophic dogs with thoracolumbar disc disease: a prospective MRI study.
Vet Surg. 2008 Jun; 37(4):399-405.VS

Abstract

OBJECTIVE

To describe the influence of fenestration at the disc herniation site on recurrence in thoracolumbar disc disease of chondrodystrophoid dogs.

STUDY DESIGN

Prospective clinical study.

ANIMALS

Chondrodystrophic dogs (n=19).

METHODS

Dogs were divided into 2 groups: group 1 (9 dogs) had thoracolumbar disc extrusion (Hansen type I) treated by hemilaminectomy and concomitant fenestration of the affected intervertebral disc and group 2 (10 dogs) had hemilaminectomy without fenestration. All dogs had 3 magnetic resonance imaging (MRI) examinations: preoperatively, immediately postoperatively to assess removal of herniated disc material, and again 6 weeks after surgery.

RESULTS

There were 13 male and 6 female dogs; mean age, 7.1 years. Thoracolumbar disc herniation was confirmed with MRI. Immediate post surgical MRI revealed that the herniated disc removal was complete in all but 1 dog and that fenestration did not lead to complete removal of nucleus pulposus within the intervertebral disc space. On the 3rd MRI examination, none of the group 1 dogs had further disc material herniation at the fenestrated site. Six of the 10 group 2 dogs had a recurrence of herniation leading to clinical signs in 3 dogs (pain in 2 dogs, paresis in 1 dog).

CONCLUSION

In thoracolumbar disc herniation, fenestration of the affected intervertebral disc space prevents further extrusion of disc material.

CLINICAL RELEVANCE

Fenestration reduces the risk of early recurrence of disc herniation and associated postoperative complications.

Authors+Show Affiliations

Department of Surgery, Radiology and Neurology, Small Animal Clinic, University of Berne, Berne, Switzerland. frank.forterre@kkh.unibe.chNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

18564265

Citation

Forterre, Franck, et al. "Influence of Intervertebral Disc Fenestration at the Herniation Site in Association With Hemilaminectomy On Recurrence in Chondrodystrophic Dogs With Thoracolumbar Disc Disease: a Prospective MRI Study." Veterinary Surgery : VS, vol. 37, no. 4, 2008, pp. 399-405.
Forterre F, Konar M, Spreng D, et al. Influence of intervertebral disc fenestration at the herniation site in association with hemilaminectomy on recurrence in chondrodystrophic dogs with thoracolumbar disc disease: a prospective MRI study. Vet Surg. 2008;37(4):399-405.
Forterre, F., Konar, M., Spreng, D., Jaggy, A., & Lang, J. (2008). Influence of intervertebral disc fenestration at the herniation site in association with hemilaminectomy on recurrence in chondrodystrophic dogs with thoracolumbar disc disease: a prospective MRI study. Veterinary Surgery : VS, 37(4), 399-405. https://doi.org/10.1111/j.1532-950X.2008.00394.x
Forterre F, et al. Influence of Intervertebral Disc Fenestration at the Herniation Site in Association With Hemilaminectomy On Recurrence in Chondrodystrophic Dogs With Thoracolumbar Disc Disease: a Prospective MRI Study. Vet Surg. 2008;37(4):399-405. PubMed PMID: 18564265.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Influence of intervertebral disc fenestration at the herniation site in association with hemilaminectomy on recurrence in chondrodystrophic dogs with thoracolumbar disc disease: a prospective MRI study. AU - Forterre,Franck, AU - Konar,Martin, AU - Spreng,David, AU - Jaggy,Andre, AU - Lang,Johann, PY - 2008/6/20/pubmed PY - 2008/8/19/medline PY - 2008/6/20/entrez SP - 399 EP - 405 JF - Veterinary surgery : VS JO - Vet Surg VL - 37 IS - 4 N2 - OBJECTIVE: To describe the influence of fenestration at the disc herniation site on recurrence in thoracolumbar disc disease of chondrodystrophoid dogs. STUDY DESIGN: Prospective clinical study. ANIMALS: Chondrodystrophic dogs (n=19). METHODS: Dogs were divided into 2 groups: group 1 (9 dogs) had thoracolumbar disc extrusion (Hansen type I) treated by hemilaminectomy and concomitant fenestration of the affected intervertebral disc and group 2 (10 dogs) had hemilaminectomy without fenestration. All dogs had 3 magnetic resonance imaging (MRI) examinations: preoperatively, immediately postoperatively to assess removal of herniated disc material, and again 6 weeks after surgery. RESULTS: There were 13 male and 6 female dogs; mean age, 7.1 years. Thoracolumbar disc herniation was confirmed with MRI. Immediate post surgical MRI revealed that the herniated disc removal was complete in all but 1 dog and that fenestration did not lead to complete removal of nucleus pulposus within the intervertebral disc space. On the 3rd MRI examination, none of the group 1 dogs had further disc material herniation at the fenestrated site. Six of the 10 group 2 dogs had a recurrence of herniation leading to clinical signs in 3 dogs (pain in 2 dogs, paresis in 1 dog). CONCLUSION: In thoracolumbar disc herniation, fenestration of the affected intervertebral disc space prevents further extrusion of disc material. CLINICAL RELEVANCE: Fenestration reduces the risk of early recurrence of disc herniation and associated postoperative complications. SN - 1532-950X UR - https://www.unboundmedicine.com/medline/citation/18564265/Influence_of_intervertebral_disc_fenestration_at_the_herniation_site_in_association_with_hemilaminectomy_on_recurrence_in_chondrodystrophic_dogs_with_thoracolumbar_disc_disease:_a_prospective_MRI_study_ L2 - https://doi.org/10.1111/j.1532-950X.2008.00394.x DB - PRIME DP - Unbound Medicine ER -