A laboratory training model using fresh sheep spines for pedicular screw fixation

BACKGROUND: Laboratory training models are essential for developing and refining surgical skills prior to clinical application of spinal surgery. A simple simulation model is needed for young residents to learn how to handle instruments and to perform safe posterior lumbar approaches. Our aim is to present a practical laboratory model using a fresh sheep lumbar spine that simulates the pedicular screw fixation in spine surgery. METHODS: The material consists of a fresh cadaveric spine from a 2-year-old sheep. A two-step approach was designed for posterior lumbar approaches including placement of lumbar pedicular screws. RESULTS: The model simulates standard posterior lumbar pedicular screw fixation of the human spine. CONCLUSIONS: The cadaveric sheep spine represents a useful method to accustom trainees of neurosurgery and spine surgery residents and simulates posterior lumbar pedicular screw fixation performed in the human spine.