*Department of Sensory & Motor Systems, Faculty of Medical and Health Sciences, The University of Auckland, New Zealand; †Department of Medical Physics and Bioengineering, Christchurch Hospital, Christchurch, New Zealand; ‡Department of Otolaryngology, Ninewells Hospital & Medical School, University of Dundee, Dundee, Scotland, U.K.; and §Christchurch School of Medicine, Christchurch Hospital & University of Otago, Christchurch, New Zealand.
Otol Neurotol. 2014 Feb;35(2):e77-83. doi: 10.1097/MAO.0000000000000173.
The forces applied to the middle ear structures during surgery are measurable.
Surgical forces applied to the middle ear are often cited as a cause of postoperative sensorineural hearing loss; however, no literature exists on how much total force is applied during common middle ear procedures.
Using our novel middle ear surgical force sensor, we took measurements from 6 temporal bones of common middle ear manipulations.
Temporal bones of 3 males and 3 females yielded 72 measurements for an average peak applied force and 68 measurements for total applied force across 3 levels of operator experience. Statistically significant differences were seen between different levels of operator and how much force was applied, with senior operators using less force.
We show it is possible to measure the applied forces in middle ear surgery and that some of these forces are very large. Larger forces are seen in destructive procedures and in procedures performed by inexperienced operators. This project is an important first step in investigating the association between surgically applied middle ear forces and postoperative sensorineural hearing loss.
手术过程中作用于中耳结构的力是可测量的。
手术过程中施加于耳的力常被认为是术后感音神经性听力损失的原因；然而，目前尚无文献报道常见中耳手术过程中施加的总力有多大。
我们使用新型中耳手术力传感器，对 6 例常见中耳操作的颞骨进行了测量。
3 名男性和 3 名女性的颞骨在 3 个级别的手术者经验水平上分别产生了 72 个平均峰值作用力测量值和 68 个总作用力测量值。在不同级别的手术者之间以及施加的力的大小方面，存在统计学显著差异，高级手术者使用的力较小。
我们证明了测量中耳手术中应用力是可行的，其中一些力非常大。在破坏性手术和经验不足的手术者进行的手术中，会看到更大的力。该项目是调查中耳手术应用力与术后感音神经性听力损失之间关联的重要的第一步。
