Transarticular facet screw stabilization and dorsal laminectomy in 26 dogs with degenerative lumbosacral stenosis with instability

Vet Surg. 2012 Jul;41(5):611-9. doi: 10.1111/j.1532-950X.2012.01002.x. Epub 2012 May 18.


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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Bone Screws / veterinary*
  • Data Collection
  • Dog Diseases / surgery*
  • Dogs
  • Female
  • Humans
  • Laminectomy / methods
  • Laminectomy / veterinary*
  • Lumbosacral Region / surgery*
  • Male
  • Retrospective Studies
  • Spinal Stenosis / surgery
  • Spinal Stenosis / veterinary*
  • Surveys and Questionnaires