期刊
SURGEON-JOURNAL OF THE ROYAL COLLEGES OF SURGEONS OF EDINBURGH AND IRELAND
卷 20, 期 4, 页码 225-230出版社
ROYAL COLLEGE SURGEONS EDINBURGH
DOI: 10.1016/j.surge.2021.05.009
关键词
Exposure monitoring; Acoustics; Hearing; Noise
类别
The study demonstrated the accurate measurement of continuous sound pressure levels during elective orthopaedic surgery using existing materials. Noise exposure levels during total knee replacement surgery met lower exposure action values, and even when worst-case daily exposure levels were calculated, they remained below the threshold.
Background: Orthopaedic surgery involves tools which could cause noise-induced hearing loss in theatre staff. Threshold levels for occupational noise exposure have been developed in the U.K., above which action is required to reduce exposure. The aims of our study were to determine whether equivalent continuous sound pressure levels during elective arthroplasty can be measured using readily available materials, and to assess whether noise exposure levels stand within acceptable occupational noise exposure levels. Materials and methods: Sound pressure levels of orthopaedic saws were recorded using the MicW i436 connected to an iPhone 4S and the iOS SoundMeter application, and using a professional sound meter. Equivalent sound pressure levels were recorded for total hip replacement (THR) and total knee replacement (TKR) using the MicW i436 SoundMeter application. Data obtained was then used to calculate a worst case daily exposure value to assess if sound levels were compliant with U.K. guidelines. Results: Sound pressure levels recorded using the MicW i436 and Soundmeter application were accurate compared to professional soundmeter readings. THR showed equivalent sound pressure levels (LAeq) of 77 dBA and TKR showed a LAeq of 80 db. Calculated worst case scenarios for daily noise exposure using these values did not meet the lower exposure action values set out by U.K. guidelines. Conclusions: It is possible to accurately measure continuous sound pressure levels during elective orthopaedic surgery using readily available materials. Noise exposure values during TKR meet lower exposure action values, and when worst case daily exposure levels are calculated this level is still lower than the threshold. Crown Copyright (C) 2021 Published by Elsevier Ltd on behalf of Royal College of Surgeons of Edinburgh (Scottish charity number SC005317) and Royal College of Surgeons in Ireland. All rights reserved.
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