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Updated: Dec 23, 2025

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Maintaining Effective Microsurgery Training with Reduced Utilisation of Live Rats.

Amitabha Lahiri1, Sandeep Sebastin Muttath1, Siti Khadijah Yusoff1

  • 1Department of Hand and Reconstructive Microsurgery, National University Hospital, Singapore.

The Journal of Hand Surgery Asian-Pacific Volume
|April 22, 2020
PubMed
Summary
This summary is machine-generated.

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Effective microsurgical skills training is achievable with fewer live rats. This study shows reduced animal use in surgical education without compromising skill acquisition or anastomosis success rates.

Area of Science:

  • Surgical Education
  • Microsurgery
  • Animal Models in Research

Background:

  • Microsurgery is crucial in many surgical fields, demanding high surgeon proficiency.
  • Live rat models offer high fidelity for microsurgical training but raise ethical concerns.
  • Developing effective training methods with reduced animal use is essential.

Purpose of the Study:

  • To evaluate if microsurgical skills can be effectively acquired by reducing the number of live rats used in training.
  • To compare skill acquisition and outcomes between different training course structures with varying animal usage.
  • To assess the feasibility of optimizing surgical training models for ethical and practical considerations.

Main Methods:

  • Two distinct training course structures were implemented, maintaining total training hours.
Keywords:
AnastomosisMicrosurgery trainingSimulation modelSurgical curriculumSurgical educationSurgical simulation

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  • Participants were divided into groups using fewer live rats (four or three per participant) compared to conventional methods.
  • Training time on synthetic and ex-vivo models was increased to compensate for reduced live animal use.
  • Effectiveness was measured by comparing anastomosis patency rates, time per anastomosis, and rat utilization efficiency.

    • Main Results:

    • Group B, utilizing three rats per participant, achieved significantly faster anastomosis times compared to Group A (four rats).
    • Anastomosis patency rates were comparable between groups despite the reduced number of live rats.
    • Training efficiency, indicated by rat utilization, improved with fewer animals per participant.

    Conclusions:

    • Live rat usage in microsurgical training can be significantly reduced.
    • Reduced animal use does not compromise the quality of surgical skill acquisition or procedural outcomes.
    • This study demonstrates a viable approach to ethical and effective microsurgical education.