Peer-reviewed veterinary case report
Accuracy of 3D drill guides for lower back surgery
By Fujioka, Toru et al.·Published in Frontiers in veterinary science·2019·The United Graduate School of Veterinary Sciences, Japan·View original on PubMed →
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Original publication title: Accuracy and Efficacy of a Patient-Specific Drill Guide Template System for Lumbosacral Junction Fixation in Medium and Small Dogs: Cadaveric Study and Clinical Cases.
- Species:
- dog
Plain-English summary
Three small dogs with lumbosacral instability (a condition affecting the lower spine) underwent surgery to stabilize their spines using a new drill guide template system. This system helped the veterinarians accurately place screws in the lumbosacral junction, which is crucial for proper spinal support. After the surgery, all three dogs showed improvement in their symptoms within two weeks, and the procedure was performed safely with good outcomes. The drill guide templates proved to be effective in ensuring precise screw placement during the surgery.
People also search for: dog lumbosacral instability treatment · small dog spine surgery · lumbosacral junction fixation in dogs
Abstract
To develop drill guide templates as an intraoperative guide, and to evaluate the accuracy and safety of screw placement in the lumbosacral junction.Canine cadaveric specimens of the lumbosacral junction (= 6), and clinical cases of lumbosacral instability (= 3).Computed tomography data of the lumbosacral region of cadaveric specimens and clinical cases were obtained. The optimum screw trajectories were determined and drill guide templates were fabricated using a three-dimensional printing system. Drill holes were made using the templates in cadaveric specimens and clinical cases, and lumbosacral fixation was performed in clinical cases. Computed tomography images were obtained to compare the planned and postoperative drill hole trajectories, and the accuracy and safety of drilling and screw placement in the lumbosacral junction were evaluated.Thirty-six drill holes were made in cadaveric specimens. The overall mean drill hole deviation was 2.05 ± 1.32 mm. A total of 12 screws were placed in the lumbosacral junctions of three clinical cases. The overall mean drill hole deviation was 2.43 ± 1.09 mm. Clinical signs improved within 2 weeks in the clinical cases. All drill holes were completely located within the bone in cadaveric specimens and clinical cases.The surgical procedures using the drill guide templates were performed safely with good clinical outcomes. The drill guide template system provided useful surgical guidance to safely and precisely perform screw placement for lumbosacral fixation surgery in small dogs.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/31998769/