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Int J Med Robot. 2014 Jun;10(2):251-6. doi: 10.1002/rcs.1568. Epub 2014 Jan 16.

Forces exerted during microneurosurgery: a cadaver study.

Author information

1
Hamlyn Centre, Imperial College London, London, UK; Department of Clinical Neurosciences, University of Calgary, Alberta, Canada.

Abstract

BACKGROUND:

A prerequisite for the successful design and use of robots in neurosurgery is knowledge of the forces exerted by surgeons during neurosurgical procedures. The aim of the present cadaver study was to measure the surgical instrument forces exerted during microneurosurgery.

METHODS:

An experimental apparatus was set up consisting of a platform for human cadaver brains, a Leica microscope to provide illumination and magnification, and a Quanser 6 Degrees-Of-Freedom Telepresence System for tissue manipulation and force measurements.

RESULTS:

The measured forces varied significantly depending on the region of the brain (P = 0.016) and the maneuver performed (P < 0.0001). Moreover, blunt arachnoid dissection was associated with greater force exertion than sharp dissection (0.22 N vs. 0.03 N; P = 0.001).

CONCLUSIONS:

The forces necessary to manipulate brain tissue were surprisingly low and varied depending on the anatomical structure being manipulated, and the maneuver performed. Knowledge of such forces could well increase the safety of microsurgery.

KEYWORDS:

force; microsurgery; neurosurgery; robotics

PMID:
24431265
PMCID:
PMC4377085
DOI:
10.1002/rcs.1568
[Indexed for MEDLINE]
Free PMC Article
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