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Related Experiment Video

Updated: Aug 7, 2025

A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers
07:24

A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers

Published on: April 21, 2017

12.6K

Objective psychomotor laparoscopic skills evaluation using a low-cost wearable device based on accelerometry:

Iván Tlacaélel Franco-González1, Arturo Minor-Martínez2, Ricardo Manuel Ordorica-Flores3

  • 1Sección de Bioelectrónica, Departamento de Ingeniería Eléctrica, Centro de Investigación Y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, 07360, Ciudad de México, México.

Surgical Endoscopy
|March 8, 2023
PubMed
Summary

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This summary is machine-generated.

A new, low-cost accelerometry system effectively evaluates surgeons' psychomotor skills in laparoscopic training. This validated motion tracking technology offers objective skill assessment for surgical education.

Area of Science:

  • Medical Simulation
  • Surgical Skill Assessment
  • Biomedical Engineering

Background:

  • Objective evaluation of surgeon skills is crucial but often limited by resources in laparoscopic training.
  • Existing technologies for skill quantification can be costly.
  • There is a need for affordable, reliable tools to assess psychomotor skills in surgical training.

Purpose of the Study:

  • To present the construct and concurrent validity of a low-cost motion tracking system.
  • To evaluate the system's ability to objectively assess psychomotor skills during laparoscopic training.
  • To introduce a system based on a wireless triaxial accelerometer for surgical skill assessment.

Main Methods:

  • A wireless triaxial accelerometer (wristwatch-like) was worn by 30 surgeons (novice, intermediate, expert) during intracorporeal knot-tying on the EndoViS simulator.
Keywords:
Accelerometer systemLaparoscopic surgeryMotion analysisObjective assessmentSurgical trainingValidity study

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  • Motion data from the accelerometer and the simulator were recorded simultaneously.
  • Eleven motion analysis parameters (MAPs) were used to assess performance and compare systems.

    • Main Results:

    • The accelerometry system demonstrated construct validity for 8 out of 11 metrics.
    • Concurrent validity showed a strong correlation between the accelerometry system and the EndoViS simulator in 9 out of 11 parameters.
    • The results indicate the reliability of the accelerometry system for objective skill evaluation.

    Conclusions:

    • The accelerometry system was successfully validated as a tool for objective surgical skill assessment.
    • This low-cost method can complement existing evaluation techniques in laparoscopic training environments.
    • The system shows potential for use in box-trainers and simulators to enhance surgical education.