Helms J
J Laryngol Otol. 1976 Dec;90(12):1143-9. doi: 10.1017/s0022215100083225.
The amplitudes of the stapes footplate movements were determined in human temporal bones when the ossicular chain was drilled with a cutting and a diamond burr. High movements result in comparison to physiological data. The frequency distribution resembles the dB (A) curve. The intensity compared to sound pressure levels on the ear drum is higher than I30 dB. The pressure is constant over the period of contact between the burr and the ossicle. Most likely these unphysiologic movements of the stapes footplate can cause inner ear damage as we had to admit in a case of facial nerve decompression.
当用切割钻和金刚石钻磨除听骨链时，测定了人颞骨中镫骨足板运动的幅度。与生理数据相比，运动幅度较大。频率分布类似于dB（A）曲线。与鼓膜上的声压级相比，强度高于30dB。在钻磨头与听小骨接触期间，压力保持恒定。正如我们在一例面神经减压病例中所承认的那样，镫骨足板这些非生理性运动很可能会导致内耳损伤。
