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Occupational noise levels in modern battery operated and conventional orthopaedic surgical devices

Current Orthopaedic Practice, ISSN: 1940-7041, Vol: 24, Issue: 4, Page: 420-423
2013
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Article Description

Background: New European Union (EU) laws exist to protect hearing in the workplace. We examined noise levels generated by cordless battery powered tools. Methods: A calibrated Precision Gold N05CC (IEC651 type 2) sound level meter made recordings of A-weighted frequency readings (dBA) of cordless hip and knee saws, and Kirschner wire drivers. We compared air powered and electric instruments at multiple distances. Results: Decibel levels generated by cordless battery powered tools (mean 84.2 dB oscillating saw, 85.5 reciprocating saw) were significantly lower (P<0.05) than the pneumatic or electric powered tools (mean 91.7 dB oscillating saw, 88 dB reciprocating saw) at a working distance of 1m. Conclusions: Modern battery powered instruments are quieter than pneumatic and electric orthopaedic tools. We conclude that noise emitted from this type of equipment could be less hazardous to staff and patients and comply with new EU regulations recommending occupational noise levels less than 85 dB. © 2013 Wolters Kluwer Health.

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