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Tool-Tissue Forces in Hemangioblastoma Surgery.

Abdulrahman Albakr1, Amir Baghdadi2, Rahul Singh3

  • 1Project neuroArm, Department of Clinical Neurosciences, and Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada; Division of Neurosurgery, Department of Surgery, King Saud University, Riyadh, Saudi Arabia.

World Neurosurgery
|January 9, 2022
PubMed
Summary

Quantifying tool-tissue forces during intracranial hemangioblastoma surgery helps assess trainee skill. Lower forces by trainees and higher forces during bleeding indicate areas for improved surgical training.

Keywords:
Data scienceForceHemangioblastomaSensorized forcepsSurgical education

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Area of Science:

  • Neurosurgery
  • Surgical Technology
  • Biomechanics

Background:

  • Intracranial hemangioblastoma resection presents significant surgical training challenges.
  • Quantifying tool-tissue forces offers a novel metric for evaluating surgical technique.

Purpose of the Study:

  • To measure and analyze tool-tissue forces during intracranial hemangioblastoma surgery.
  • To compare force profiles between surgical trainees and mentors.
  • To identify force parameters associated with surgical errors.

Main Methods:

  • Seven surgeons (1 mentor, 6 trainees) participated in 6 surgeries.
  • Sensorized bipolar forceps collected force data (duration, average, max, min, SD, correlation) for 5 tasks.
  • Force errors (bleeding, incomplete) were compared between surgeon groups and successful trials.

Main Results:

  • 718 trials yielded force data; mean force was 0.20 ± 0.17 N.
  • Trainees exerted significantly lower forces (0.15 N) than the mentor (0.24 N).
  • Higher forces were associated with unsuccessful bleeding trials (0.3 N) and later stages of surgery.

Conclusions:

  • Quantification of tool-tissue forces provides objective feedback for surgical training.
  • Monitoring force application can help prevent bleeding complications related to excessive force.