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Objectives:
This cadaveric study aims to address the challenges of surgical stabilization in cats with traumatic sacroiliac luxation. The delicate sacral anatomy requires precise surgical techniques to avoid damage to vital structures.
Methods:
The feasibility and safety of a minimally invasive approach by a novice surgeon using computer navigation (MIN) compared to traditional fluoroscopy controlled freehand technique (FC) was evaluated after simulated sacroiliac luxation. To achieve these aims a new patient reference array positioning was developed and tested.
Cadavers of eleven skeletally mature cats were used. Final fixation was achieved with a positional screw. Evaluation criteria included the accuracy of screw placement in the sacrum, time taken for surgery, radiological safety and learning curve.
Results:
Results demonstrated a significant improvement in accuracy, duration and safety over the course of surgeries in the MIN group. Despite initial challenges, such as ventral deviation during drilling, a steep learning curve was observed.
Conclusions:
The evaluation of postoperative images revealed that the navigated technique exhibited comparable accuracy to traditional fluoroscopy-controlled surgery. This finding supports the study's hypothesis, indicating that computer navigation offers an accurate and safe alternative for sacroiliac joint fixation in cats. Its clinical relevance lies in its ability to spare soft tissue and improve screw positioning, offering a promising alternative to traditional fluoroscopy-guided procedures.
Limitations included the artificial nature of the cadaver models and variations in surgical approaches between the two groups.
34th Annual Scientific Meeting proceedings
Stream:
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Session:
Date/Time: 03-07-2025 (18:15 - 18:30) | Location:
Date/Time: 03-07-2025 (18:15 - 18:30) | Location:
Minimally invasive repair of feline sacroiliac luxation using computer navigation - a cadaveric study
Wolf ND1, Kleiner L2, Precht CH3, De Preux M4, Guevar J5, Forterre F*1, Düver P*1
1Division of Small Animal Surgery, Department of Clinical Veterinary Medicine, Vetsuisse-Faculty, University of Bern, Bern, Switzerland, 2Divison of Small Animal Surgery, Department of Clinical Veterinary Medicine, Tierklinik Marigin, Feusisberg, Switzerland, 3Divison of Clinical Radiology, Department of Clinical Veterinary Medicine, Vetsuisse-Faculty, University of Bern, Bern, Switzerland, 4Divison of Large Animal Surgery, Department of Clinical Veterinary Medicine, Vetsuisse-Faculty, University of Bern, Bern, Switzerland, 5Divison of Small Animal Neurology, Department of Clinical Veterinary Medicine, Anicura Tierklinik Thun, Thun, Switzerland.
Objectives:
This cadaveric study aims to address the challenges of surgical stabilization in cats with traumatic sacroiliac luxation. The delicate sacral anatomy requires precise surgical techniques to avoid damage to vital structures.
Methods:
The feasibility and safety of a minimally invasive approach by a novice surgeon using computer navigation (MIN) compared to traditional fluoroscopy controlled freehand technique (FC) was evaluated after simulated sacroiliac luxation. To achieve these aims a new patient reference array positioning was developed and tested.
Cadavers of eleven skeletally mature cats were used. Final fixation was achieved with a positional screw. Evaluation criteria included the accuracy of screw placement in the sacrum, time taken for surgery, radiological safety and learning curve.
Results:
Results demonstrated a significant improvement in accuracy, duration and safety over the course of surgeries in the MIN group. Despite initial challenges, such as ventral deviation during drilling, a steep learning curve was observed.
Conclusions:
The evaluation of postoperative images revealed that the navigated technique exhibited comparable accuracy to traditional fluoroscopy-controlled surgery. This finding supports the study's hypothesis, indicating that computer navigation offers an accurate and safe alternative for sacroiliac joint fixation in cats. Its clinical relevance lies in its ability to spare soft tissue and improve screw positioning, offering a promising alternative to traditional fluoroscopy-guided procedures.
Limitations included the artificial nature of the cadaver models and variations in surgical approaches between the two groups.
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