Kang et al: Accuracy of a 3‐dimensionally printed custom endoscopy port for minimally invasive ventral slot decompression in dogs: A cadaveric study
Veterinary Surgery 8, 2023

🔍 Key Findings

  • 3D-printed endoscopy ports (3DEP) enabled highly accurate screw placement, with mean screw angle deviation < 2.5° and entry/exit point deviation < 1.6 mm.
  • No significant differences were found between experienced and inexperienced surgeons in screw placement or slot dimensions, suggesting ease of use.
  • Slot dimensions consistently met surgical safety criteria: slot length < 1/3 vertebral body length and slot width < 1/2 vertebral body width.
  • Mean depth of screw intrusion into the spinal canal was < 0.6 mm, meeting pre-set safety thresholds.
  • 27/30 slots (90%) were classified as “Type I”, meeting the ideal safety classification for avoiding vascular injury.
  • Custom-designed dilators allowed atraumatic placement of the 3DEP without the need for retractors or repositioning.
  • Intraoperative visualization and field control were enhanced, as 3DEP prevented spread of irrigation fluid and debris.
  • 3DEP use was feasible across a wide weight range (3.1–34.4 kg), suggesting potential applicability to various breeds.

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Kang et al: Accuracy of a 3‐dimensionally printed custom endoscopy port for minimally invasive ventral slot decompression in dogs: A cadaveric study
Veterinary Surgery 8, 2023

🔍 Key Findings

  • 3D-printed endoscopy ports (3DEP) enabled highly accurate screw placement, with mean screw angle deviation < 2.5° and entry/exit point deviation < 1.6 mm.
  • No significant differences were found between experienced and inexperienced surgeons in screw placement or slot dimensions, suggesting ease of use.
  • Slot dimensions consistently met surgical safety criteria: slot length < 1/3 vertebral body length and slot width < 1/2 vertebral body width.
  • Mean depth of screw intrusion into the spinal canal was < 0.6 mm, meeting pre-set safety thresholds.
  • 27/30 slots (90%) were classified as “Type I”, meeting the ideal safety classification for avoiding vascular injury.
  • Custom-designed dilators allowed atraumatic placement of the 3DEP without the need for retractors or repositioning.
  • Intraoperative visualization and field control were enhanced, as 3DEP prevented spread of irrigation fluid and debris.
  • 3DEP use was feasible across a wide weight range (3.1–34.4 kg), suggesting potential applicability to various breeds.

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