Use of an ex vivo canine ventral slot model to test the efficacy of a piezoelectric cutting tool for decompressive spinal surgery

Abstract

The PI allowed completion of ventral slots in a significantly shorter time, without an increased incidence of iatrogenic trauma. The right-handed surgeon showed a left-sided aiming bias, regardless of surgical technique.

High‐Definition Video Telescope‐Assisted Ventral Slot Decompression Surgery for Cervical Intervertebral Disc Herniation in 30 Dogs

“…Our study confirmed that a lateralized disc herniation can be removed trough a ventral slot centered on the midline. These data are consistent with the results of a previous study on ventral slot decompression surgery by Böttcher et al In our study, the dimensions of the ventral slot were smaller than the safe limits recommended: 33% of the vertebral body length and 30–50% of the vertebral body width . Residual extradural compression in our study seemed to be less frequent (57% of cases) when compared to a previous study by Böttcher et al (77% of cases) .…”

“…Surgical loupes, the endoscope, and the operative microscope may also prevent the second surgeon from playing a more active role during the surgical procedure. Moreover, the endoscope and the operative microscope are considered to have steep learning curves …”

“…Moreover, the endoscope and the operative microscope are considered to have steep learning curves. [11][12][13][14][15][16][17][18][19][20][21][22] The first description of the VITOM TM system in human neurosurgery (spine and brain procedures) was reported by Mamelak et al in 2008. 12 The VITOM TM system is lightweight, versatile, cost competitive, and not cumbersome.…”

“…The ventral slot width ratio was expressed for each vertebra as the ratio between the postoperative ventral slot width divided by the preoperative vertebral end plate width (Fig ) . Slot deviation from the midsagittal plane was measured on the coronal images at the level of the maximal slot width, as described by Farrell . A positive or negative angle corresponded to a right or left deviation of the slot from the midsagittal plane, respectively .…”

“…21 A positive or negative angle corresponded to a right or left deviation of the slot from the midsagittal plane, respectively. 21 All measurements were performed by a single investigator (DR).…”