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Transarticular Facet Screw Stabilization and Dorsal Laminectomy in 26 Dogs with Degenerative Lumbosacral Stenosis with Instability

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Objective

To describe outcome after transarticular facet screw stabilization and dorsal laminectomy for treatment of dynamic degenerative lumbosacral stenosis (DLS) in 26 dogs.
Study Design

Retrospective case series.
Animals

Dogs (n = 26) with dynamic DLS.
Methods

Medical records (2004–2009) of dogs treated with transarticular facet screw stabilization and dorsal laminectomy were reviewed. Dogs (n = 26) were available for immediate postoperative follow‐up, 21 dogs at 6 weeks, and 15 at greater than 6 months. Dogs were evaluated by radiographic assessment and owner questionnaire. Lumbosacral (LS) intervertebral disc (IVD) spaces were measured on pre and postoperative 6‐week and 6‐month radiographs.
Results

In 23 dogs, improvement in clinical signs occurred within 7 days of surgery. Overall postsurgical complication rate directly related to the surgical procedure was 15.4%. LS IVD space measurements taken immediately postoperatively, at 6 weeks, and ≥ 6 months were all significantly increased compared with preoperative measurements. All working dogs (4) returned to full work within 14 months. Most owners (85%) reported their dog was ambulating normally at 6 months with no perceptible lameness during normal activity. All owners perceived their dog's ability to walk, run, and jump after surgery to be improved.
Conclusions

Transarticular facet screw stabilization and dorsal laminectomy maintains distraction of the LS IVD space for medium‐to‐large breed dogs with dynamic DLS with a high degree of owner satisfaction, and is comparable to other reported surgical techniques for DLS.
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Document Type: Research Article

Publication date: July 1, 2012

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