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[Evaluation of Muscle Fatigue in Spinal Surgery Instruments Based on sEMG-JASA].

Yuxiao Hou1,2, Ningbo Mao2, Gengyu Cao3

  • 1Department of Orthopaedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730.

Zhongguo Yi Liao Qi Xie Za Zhi = Chinese Journal of Medical Instrumentation
|June 8, 2023
PubMed
Summary

Optimized spinal surgical instruments reduce surgeon fatigue significantly. This study used surface electromyography (EMG) to compare operating comfort before and after instrument improvements, demonstrating enhanced ergonomics.

Keywords:
joint analysis of EMG spectrum and amplitude methodmuscle fatiguespine surgical instrumentssurface EMG

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Area of Science:

  • Biomedical Engineering
  • Ergonomics
  • Surgical Technology

Context:

  • Muscle fatigue is a significant concern for surgeons, potentially impacting performance and patient safety.
  • Surface electromyography (EMG) offers a non-invasive method for assessing muscle fatigue during surgical tasks.
  • Spinal surgical instruments undergo design optimization to improve surgeon comfort and reduce strain.

Purpose:

  • To evaluate the impact of optimized spinal surgical instruments on surgeon operating comfort.
  • To quantitatively assess muscle fatigue using EMG spectrum and amplitude method (JASA) before and after instrument optimization.
  • To compare the fatigue levels associated with pre-optimization versus post-optimization surgical instruments.

Summary:

  • Surface EMG signals from brachioradialis and biceps were analyzed in 17 subjects using the joint analysis of EMG spectrum and amplitude method (JASA).
  • Five pairs of spinal surgical instruments (pre- and post-optimization) were tested, calculating operating fatigue time proportion based on RMS and MF eigenvalues.
  • Results indicated significantly lower operating fatigue time with optimized instruments (P<0.05) compared to pre-optimized ones for the same task.

Impact:

  • Provides objective data supporting the ergonomic design of surgical instruments.
  • Offers insights into fatigue damage protection for surgeons performing spinal procedures.
  • Highlights the benefits of design optimization in enhancing surgeon well-being and potentially surgical outcomes.