Early reherniation of disk material in eleven dogs with surgically treated thoracolumbar intervertebral disk extrusion.

Hettlich, Bianca Felicitas; Kerwin, Sharon C; Levine, Jonathan M (2012). Early reherniation of disk material in eleven dogs with surgically treated thoracolumbar intervertebral disk extrusion. Veterinary surgery, 41(2), pp. 215-220. Wiley-Blackwell 10.1111/j.1532-950X.2011.00920.x

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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.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV)
05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > Small Animal Clinic > Small Animal Clinic, Surgery
05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > Small Animal Clinic

UniBE Contributor:

Hettlich, Bianca Felicitas

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0161-3499

Publisher:

Wiley-Blackwell

Language:

English

Submitter:

Bianca Felicitas Hettlich

Date Deposited:

31 Mar 2016 08:58

Last Modified:

31 Mar 2016 08:58

Publisher DOI:

10.1111/j.1532-950X.2011.00920.x

PubMed ID:

22103469

URI:

https://boris.unibe.ch/id/eprint/77336

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