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Early reherniation of disk material in eleven dogs with surgically treated thoracolumbar intervertebral disk extrusion.
Vet Surg. 2012 Feb; 41(2):215-20.VS

Abstract

OBJECTIVE

To report findings and outcomes of dogs with reherniation of nuclear material within 7 days of hemilaminectomy for acute thoracolumbar (TL) intervertebral disk extrusion.

STUDY DESIGN

Retrospective case series.

ANIMALS

Chondrodystrophic dogs (n = 11).

METHODS

Dogs with acute neurologic decline within 1 week of surgical decompression for TL disk extrusion were identified. Advanced imaging was used to document extradural spinal cord compression at the previous surgery site. Ten dogs had a 2nd decompressive surgery to remove extruded nuclear material.

RESULTS

All dogs had acute neurologic deterioration (average, 2 neurologic grades) 2-7 days after initial hemilaminectomy. Computed tomography (CT; n = 10) or myelography (n = 1) documented extradural spinal cord compression compatible with extruded disk material at the previous hemilaminectomy site. Dogs that had a 2nd surgical decompression improved neurologically within 24 hours and were paraparetic at discharge. The single dog that did not have decompressive surgery did not regain deep nociception during 185-day follow-up.

CONCLUSIONS

Early reherniation at the site of previous hemilaminectomy can produce acute deterioration of neurologic function and should be investigated with diagnostic imaging. Repeat decompressive surgery can lead to functional recovery.

Authors+Show Affiliations

Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, TX, USA. bianca.hettlich@cvm.osu.eduNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

22103469

Citation

Hettlich, Bianca F., et al. "Early Reherniation of Disk Material in Eleven Dogs With Surgically Treated Thoracolumbar Intervertebral Disk Extrusion." Veterinary Surgery : VS, vol. 41, no. 2, 2012, pp. 215-20.
Hettlich BF, Kerwin SC, Levine JM. Early reherniation of disk material in eleven dogs with surgically treated thoracolumbar intervertebral disk extrusion. Vet Surg. 2012;41(2):215-20.
Hettlich, B. F., Kerwin, S. C., & Levine, J. M. (2012). Early reherniation of disk material in eleven dogs with surgically treated thoracolumbar intervertebral disk extrusion. Veterinary Surgery : VS, 41(2), 215-20. https://doi.org/10.1111/j.1532-950X.2011.00920.x
Hettlich BF, Kerwin SC, Levine JM. Early Reherniation of Disk Material in Eleven Dogs With Surgically Treated Thoracolumbar Intervertebral Disk Extrusion. Vet Surg. 2012;41(2):215-20. PubMed PMID: 22103469.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Early reherniation of disk material in eleven dogs with surgically treated thoracolumbar intervertebral disk extrusion. AU - Hettlich,Bianca F, AU - Kerwin,Sharon C, AU - Levine,Jonathan M, Y1 - 2011/11/21/ PY - 2011/11/23/entrez PY - 2011/11/23/pubmed PY - 2013/6/1/medline SP - 215 EP - 20 JF - Veterinary surgery : VS JO - Vet Surg VL - 41 IS - 2 N2 - OBJECTIVE: To report findings and outcomes of dogs with reherniation of nuclear material within 7 days of hemilaminectomy for acute thoracolumbar (TL) intervertebral disk extrusion. STUDY DESIGN: Retrospective case series. ANIMALS: Chondrodystrophic dogs (n = 11). METHODS: Dogs with acute neurologic decline within 1 week of surgical decompression for TL disk extrusion were identified. Advanced imaging was used to document extradural spinal cord compression at the previous surgery site. Ten dogs had a 2nd decompressive surgery to remove extruded nuclear material. RESULTS: All dogs had acute neurologic deterioration (average, 2 neurologic grades) 2-7 days after initial hemilaminectomy. Computed tomography (CT; n = 10) or myelography (n = 1) documented extradural spinal cord compression compatible with extruded disk material at the previous hemilaminectomy site. Dogs that had a 2nd surgical decompression improved neurologically within 24 hours and were paraparetic at discharge. The single dog that did not have decompressive surgery did not regain deep nociception during 185-day follow-up. CONCLUSIONS: Early reherniation at the site of previous hemilaminectomy can produce acute deterioration of neurologic function and should be investigated with diagnostic imaging. Repeat decompressive surgery can lead to functional recovery. SN - 1532-950X UR - https://www.unboundmedicine.com/medline/citation/22103469/Early_reherniation_of_disk_material_in_eleven_dogs_with_surgically_treated_thoracolumbar_intervertebral_disk_extrusion_ L2 - https://doi.org/10.1111/j.1532-950X.2011.00920.x DB - PRIME DP - Unbound Medicine ER -