Abstract：
INTRODUCTION:Noise exposure is an occupational health concern for certain professions, especially military servicemembers and those using power tools on a regular basis. The purpose of this study was to quantify noise exposure during total hip arthroplasty (THA) and total knee arthroplasty (TKA) cases compared to the recommended standard for occupational noise exposure. MATERIALS AND METHODS:A sound level meter was used to record cumulative and peak noise exposure levels in 10 primary THA and 10 primary TKA surgeries, as well as 10 arthroscopy cases as controls. Measurements at the distance of the surgeon were taken in all cases. In TKA cases, measurements were taken at 3 feet and 8 feet from the surgeon, to simulate the position of the anesthetist and circulating nurse, respectively. RESULTS:Time-weighted average was significantly higher in THA (64.7 ± 5.2 dB) and TKA (64.5 ± 6.8 dB) as compared to arthroscopic cases (51.1 ± 7.5 dB, P < 0.001) and higher at the distance of the surgeon (64.5 ± 6.8 dB) compared to the anesthetist (52.9 ± 3.8 dB) and the circulating nurse (54.8 ± 11.2 dB, P = 0.006). However, time-weighted average was below the recommended exposure level of 85 dB for all arthroplasty cases. Peak levels did not differ significantly between surgery type or staff role, and no values above the ceiling limit of 140 dB were recorded. Surgeon's daily noise dose percentage per case was 1.78% for THA and 2.04% for TKA. CONCLUSION:Noise exposure in THA and TKA was higher than arthroscopic cases but did not exceed occupational standards. A daily dose percentage of approximately 2% per case indicates that repeated noise exposure likely does not reach hazardous levels in modern arthroplasty practice.
journal_name
Mil Medjournal_title
Military medicineauthors
Slaven SE,Wheatley BM,Christensen DL,Saxena SK,McGill RJdoi
10.1093/milmed/usaa102subject
Has Abstractpub_date
2020-09-18 00:00:00pages
e1551-e1555issue
9-10eissn
0026-4075issn
1930-613Xpii
5854780journal_volume
185pub_type
杂志文章abstract：:Adolescent pregnancy is a significant public health problem in the United States, but little is known about this condition in military-affiliated populations. This article reviews what is known about adolescent pregnancy among (1) dependent children of active duty and retired personnel and (2) active duty military per...
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journal_title：Military medicine
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