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

Abstract

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.

Keywords::

• laboratory training model
• pedicular screw fixation
• posterior lumbar procedures
• sheep spine.

Declaration of interest: There are no conflicts of interest. We do not have a financial relationship to the work,neither received any other form of financial support nor any government or company grants or research support. We are not employees, consultants or stockholders of any company, nor members of any speakers ’ bureau.