Thoracolumbar dorsolateral laminectomy with osteotomy of the spinous process in fourteen dogs

Forterre, Franck; Spreng, David; Rytz, Ulrich; Jaggy, André; Schawalder, Peter (2007). Thoracolumbar dorsolateral laminectomy with osteotomy of the spinous process in fourteen dogs. Veterinary surgery, 36(5), pp. 458-63. Oxford: Wiley-Blackwell 10.1111/j.1532-950X.2007.00292.x

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OBJECTIVE: To describe outcome after an alternative unilateral approach to the thoracolumbar spine for dorsal laminectomy. STUDY DESIGN: Retrospective clinical study. ANIMALS: Dogs (n=14) with thoracolumbar spinal cord compression. METHODS: Thoracolumbar spinal cord compression was lateral (6 dogs), dorsal (4), and dorsolateral (4) caused by subarachnoid (7) and synovial cysts (2) and intradural-extramedullary neoplasia (5). All dogs were treated by dorsal laminectomy with osteotomy of the spinous process using a unilateral paramedian approach. The contralateral paraspinal muscles were not stripped from the spinous process and the osteoligamentous complexes were preserved. Retraction of the spinous process and muscles to the contralateral side resulted in complete visualization of the dorsal vertebral arch thereby allowing dorsal laminectomy to be performed. RESULTS: No technique complications occurred. Approximately 75% exposure of the spinal cord (dorsal and lateral compartments) was achieved providing adequate visualization and treatment of the lesions. Transient deterioration of neurologic state occurred in 5 dogs because of extensive spinal cord manipulation. At long-term follow-up, 6 dogs were normal, 6 had clinical improvement, and 2 were unchanged. CONCLUSION: Dorsal laminectomy after osteotomy and retraction of the spinous process may be considered in canine patients with dorsal, dorsolateral, or lateral compression to facilitate adequate decompression of the spinal cord. CLINICAL SIGNIFICANCE: This surgical technique offers an alternative approach to the thoracolumbar spine and spinal cord by a modified dorsal laminectomy that preserves the paraspinal muscle integrity on the contralateral side.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > DKV - Clinical Neurology
05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > Small Animal Clinic
05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV)
05 Veterinary Medicine > Other Institutions > Teaching Staff, Vetsuisse Faculty

UniBE Contributor:

Forterre, Franck; Spreng, David; Rytz, Ulrich; Jaggy, André and Schawalder, Peter

ISSN:

0161-3499

Publisher:

Wiley-Blackwell

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:53

Last Modified:

11 Sep 2014 21:08

Publisher DOI:

10.1111/j.1532-950X.2007.00292.x

PubMed ID:

17614927

Web of Science ID:

000247758800010

URI:

https://boris.unibe.ch/id/eprint/22499 (FactScience: 35061)

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