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Preoperative warm-up the key to improved resident technique: a randomized study.

Erin Moran-Atkin1, Gamal Abdalla, Grace Chen

  • 1Department of Surgery, Johns Hopkins University School of Medicine, Suite 399, 4940 Eastern Ave 21224, Baltimore, MD, 21287, USA, erinmoranatkin@gmail.com.

Surgical Endoscopy
|September 25, 2014
PubMed
Summary

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Preoperative warm-up significantly enhances surgical skills like depth perception and dexterity in residents. This structured practice improves operative technique, as validated by attending surgeon evaluations.

Area of Science:

  • Surgical Education
  • Medical Simulation
  • Motor Skill Acquisition

Background:

  • Accreditation Council for Graduate Medical Education (ACGME) mandates skills labs in surgical residency.
  • While warm-up is accepted for complex motor skills, evidence for its benefit in surgery is limited.
  • This study investigates the impact of pre-operative warm-up on surgical performance.

Purpose of the Study:

  • To determine if a pre-operative warm-up period improves operative technique in surgical residents.
  • To provide evidence supporting the integration of structured warm-up protocols into surgical training.

Main Methods:

  • Randomized controlled trial involving general surgery residents and MIS fellows.
  • Participants were assigned to either a warm-up group (10-min simulation) or a no-warm-up control group.

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  • Attending surgeons, blinded to group assignment, evaluated operative performance using validated global rating scales.

    • Main Results:

    • Warm-up group showed significant improvements in depth perception (p=0.02), bimanual dexterity (p=0.01), and movement efficiency (p=0.03).
    • Composite scores on both Reznick (p=0.008) and Vassiliou (p=0.01) scales were statistically higher for the warm-up group.
    • Pilot data from 40 cases (19 warm-up, 21 control) informed these findings.

    Conclusions:

    • Pre-operative warm-up demonstrably enhances key surgical skills and overall operative performance.
    • Structured warm-up activities can be a valuable tool for improving surgical training outcomes.
    • Despite lack of self-perceived improvement, objective measures indicate enhanced surgical proficiency.