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Prototype screwdriver stopper to avoid intracranial penetration injury.

Kenichiro Asano1, Kosuke Katayama2, Kiyohide Kakuta2

  • 1Department of Neurosurgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan. asanoken@hirosaki-u.ac.jp.

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A novel screwdriver stopper device effectively prevents dangerous intracranial penetration injuries during neurosurgery. This device significantly reduces the risk of screwdriver slips, enhancing patient safety in craniotomy procedures.

Keywords:
Cam-out effectIntracranial penetration injuryScrewdriver slipTapping screw

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Area of Science:

  • Neurosurgery
  • Medical Device Development
  • Surgical Safety

Background:

  • Screwdriver slips during craniotomy pose a significant risk of intracranial penetration injuries.
  • Current surgical practices may not adequately address this risk, potentially endangering patients.

Purpose of the Study:

  • To develop and evaluate a novel screwdriver stopper device to prevent intracranial penetration injuries.
  • To assess the efficacy of the device in reducing screwdriver slip events during craniotomies.

Main Methods:

  • A screwdriver stopper device made of clear acrylic was developed.
  • The device was tested during 48 craniotomies involving 512 tapping screw tightening procedures.
  • Screwdriver slip events were recorded and compared across screwdrivers from five different companies.

Main Results:

  • The screwdriver stopper device completely prevented serious intracranial penetration injuries.
  • Screwdriver slips occurred at a rate of 3.3% (17/512), but none resulted in penetration injuries.
  • No significant differences in screwdriver slip rates were observed between the five screwdriver companies.

Conclusions:

  • The developed screwdriver stopper is highly effective in preventing intracranial penetration injuries during neurosurgery.
  • The device offers a valuable safety enhancement for neurosurgeons, mitigating a known surgical risk.