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How noisy are total knee and hip replacements?

Jonathan P Simpson1, Andrew J Hamer2

  • 1Medical Student, University of Sheffield, UK.

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|January 13, 2018
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Orthopaedic operating rooms expose staff to dangerous noise levels. Surgical tools like hammers and saws generate noise exceeding 90dB, risking permanent hearing loss for theatre personnel.

Keywords:
ArthroplastyNoise-induced hearing lossOrthopaedic surgeryOrthopaedic tools

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Area of Science:

  • Orthopaedic surgery
  • Audiology
  • Occupational health

Background:

  • Orthopaedic theatres are recognized as high-noise environments.
  • Occupational hearing loss affects 50% of orthopaedic theatre staff.
  • Impulse noise from surgical tools poses a significant risk.

Purpose of the Study:

  • To quantify noise levels during total knee replacements (TKRs) and total hip replacements (THRs).
  • To assess the risk of noise-induced hearing loss (NIHL) for surgical staff.
  • To highlight the need for further investigation into noise reduction strategies.

Main Methods:

  • Noise levels were measured in decibels (dB) during 17 TKRs and 11 THRs.
  • Specific tools, including hammers and oscillating saws, were monitored.
  • Data was collected to identify peak noise exposures.

Main Results:

  • Noise levels frequently exceeded 90dB(A) during procedures.
  • Peak noise levels reached 105.6dB(A) with a hammer and 97.9dB(A) with an oscillating saw.
  • All recorded procedures involved noise exposure above 90dB(A).

Conclusions:

  • Surgical tools in orthopaedic settings generate hazardous impulse noise levels.
  • Exposure to noise above 90dB, even briefly, can cause irreversible hearing damage.
  • Urgent further investigation and intervention are required to protect staff hearing.