Department of Plastic and Reconstructive Surgery, Keio University School of Medicine.
Department of Otolaryngology, Keio University School of Medicine, Shinjuku-ku, Tokyo.
J Craniofac Surg. 2023 Oct 1;34(7):e694-e696. doi: 10.1097/SCS.0000000000009609. Epub 2023 Aug 17.
In orthognathic surgery, it is well known that maxillary osteotomies and displacements sometimes affect auditory function. Thus, this study examined the relationship between the direction of maxillary displacement and postoperative otalgia.
Twenty consecutive patients underwent Le Fort I maxillary osteotomy using advancement, impaction, setback, or a combination of these procedures. The direction of movement and incidence of otalgia were investigated. Patients provided informed consent preoperatively, and postoperative reassurance was prudent.
Pure-tone average evaluation based on horizontal or vertical movements did not show significant differences, although vertical movements resulted in fewer changes in the hearing threshold. Specifically, no significant changes were observed in the hearing thresholds of patients after surgery. No significant difference was also observed between horizontal and vertical movements in the tympanometry results. Negative changes were found in the results of the Eustachian tube dysfunction test in vertical movements, which returned to preoperative values in the final test.
The risk of minor changes in hearing function is probable during the first week after orthognathic surgery; however, these negative changes either completely disappear or remain negligible.
在正颌手术中，众所周知，上颌骨切开术和移位有时会影响听觉功能。因此，本研究探讨了上颌骨移位方向与术后耳痛之间的关系。
连续 20 例患者接受 Le Fort I 上颌骨切开术，采用推进、压缩、后退或这些方法的组合。研究了运动的方向和耳痛的发生率。患者在术前提供了知情同意，术后进行了适当的安抚。
基于水平或垂直运动的纯音平均评估没有显示出显著差异，尽管垂直运动导致听力阈值的变化较小。具体来说，手术后患者的听力阈值没有观察到显著变化。鼓室压图结果在水平和垂直运动之间也没有观察到显著差异。在垂直运动中，咽鼓管功能测试的结果呈负向变化，在最后一次测试中恢复到术前值。
在正颌手术后的第一周内，听力功能可能会出现轻微变化，但这些负面变化要么完全消失，要么仍然可以忽略不计。
