Suligavi Shashidhar S, Saiyad Saif N, Doddamani Sangappa S, Mathri Archana
Department of ENT, S. Nijalingappa Medical College, Bagalkot, Karnataka India.
Indian J Otolaryngol Head Neck Surg. 2022 Dec;74(Suppl 3):4336-4340. doi: 10.1007/s12070-021-02933-x. Epub 2021 Nov 29.
Temporal bone fracture accounts for 30-70% of skull fractures. Temporal bone trauma is associated with severe traumatic brain injury Temporal bone fractures are invariably due to road traffic accidents (RTA). Temporal bone fractures are traditionally classified as transverse, longitudinal or mixed fractures depending on their relationship to the petrous pyramid. Recent studies classify temporal bone fractures as otic capsule sparing (OCS) and otic capsule violating (OCV) types and has more relevance with the prognosis of hearing loss and complications. To study of type and degree of hearing loss following temporal bone fractures according to the old and new classification of temporal bone fractures. The prospective study of 35 cases of head injuries attending emergency department was conducted in the Department of Otorhinolaryngology, SNMC and H.S.K. Hospital & Research centre, Bagalkot during the study period from January 2019 to June 2020. High Resolution Computed Tomography (HRCT) of bilateral temporal bone was done to look for type of temporal bone fractures. Pure tone audiometry (PTA) to assess degree and type of hearing loss. Appropriate statistical analysis at the end of study was done. Most patients were in age group of 21-40 years. Among 35 cases, 30 were longitudinal fractures, 4 were transverse and 1 was mixed.27 cases were OCS and 8 of OCV type.OCV type of fractures are having higher degree of hearing loss. Longitudinal type of temporal bone fractures constitutes majority. Hearing loss was more in OCV type.
颞骨骨折占颅骨骨折的30%-70%。颞骨创伤与严重的创伤性脑损伤相关。颞骨骨折总是由道路交通事故（RTA）引起。传统上，根据颞骨骨折与岩锥的关系，将其分为横行、纵行或混合型骨折。最近的研究将颞骨骨折分为保留听骨链（OCS）和侵犯听骨链（OCV）类型，这与听力损失的预后和并发症更相关。根据颞骨骨折的新旧分类研究颞骨骨折后听力损失的类型和程度。在2019年1月至2020年6月的研究期间，在SNMC和H.S.K.医院及研究中心（位于巴加尔科特）的耳鼻喉科对35例就诊于急诊科的头部受伤患者进行了前瞻性研究。进行双侧颞骨的高分辨率计算机断层扫描（HRCT）以确定颞骨骨折的类型。采用纯音听力测定法（PTA）评估听力损失的程度和类型。研究结束时进行了适当的统计分析。大多数患者年龄在21-40岁之间。35例中，30例为纵行骨折，4例为横行骨折，1例为混合型骨折。27例为OCS型，8例为OCV型。OCV型骨折的听力损失程度更高。纵行颞骨骨折占大多数。OCV型的听力损失更严重。
