Simpson Jonathan P, Hamer Andrew J
Medical Student, University of Sheffield, UK.
Lower Limb Arthroplasty Unit, Sheffield Teaching Hospitals, UK.
J Perioper Pract. 2017 Dec;27(12):292-295. doi: 10.1177/175045891702701204.
Orthopaedic theatre can be noisy. Fifty percent of orthopaedic theatre staff have features of noise-induced hearing loss (NIHL). In this study, decibel (dB) levels were recorded in 17 total knee replacements (TKRs) and 11 total hip replacements (THRs). Noise levels reached 105.6dB(A) using a hammer and 97.9dB(A) with an oscillating saw. Exposure to levels above 90dB (which occurred in every case) even for short time periods is proven to cause irreversible loss of hearing. Tools used in orthopaedic theatre produce impulse noises that can cause NIHL. Further investigation is required.
骨科手术室可能很嘈杂。50%的骨科手术室工作人员有噪声性听力损失（NIHL）的特征。在本研究中，记录了17例全膝关节置换术（TKR）和11例全髋关节置换术（THR）中的分贝（dB）水平。使用锤子时噪声水平达到105.6dB（A），使用摆动锯时为97.9dB（A）。即使短时间暴露于90dB以上的水平（每种情况均出现）也已被证明会导致不可逆转的听力损失。骨科手术室使用的工具会产生可导致噪声性听力损失的脉冲噪声。需要进一步调查。
