Traumatic incudostapedial joint dislocation with stapes footplate into the vestibular window and pneumolabyrinth: a case report
-
Abstract: A case of traumatic incudostapedial joint dislocation with stapes footplate into the vestibular window and pneumolabyrinth patient history. Patients mainly presented with vertigo, hearing loss in the left ear, audible sound when the head was shifted to the left, and subsequent vertigo, manifested as a spiral rotation, accompanied by gait instability, a feeling of stepping on cotton, and decreased attention. Pure tone audiometry showed mixed hearing loss in the left ear and temporal bone CT demonstrated air density in the left vestibule. Then, the patient underwent exploratory tympanotomy, which found the incudostapedial joint dislocation and stapes footplate into the vestibular window. According to the patient's history of head trauma, temporal bone CT, and exploratory tympanotomy can be diagnosed as: pneumolabyrinth, traumatic ossicular injury.
-
Key words:
- trauma /
- temporal bone /
- bone fractures /
- pneumolabyrinth
-
[1] Aljehani M, Alshamani M. A tale of 1 year: a case of bilateral conductive hearing loss due to bilateral ossicular chain disruption post head trauma[J]. J Surg Case Rep, 2019, 2019(1): rjy353.
[2] Chiaramonte R, Bonfiglio M, D'Amore A, et al. Traumatic labyrinthine concussion in a patient with sensorineural hearing loss[J]. Neuroradiol J, 2013, 26(1): 52-55. doi: 10.1177/197140091302600109
[3] Mafee MT, Valvassori GE, Kumar A, et al. Pneumolabyrinth: a new radiologic sign for fracture of the stapes footplate[J]. Am J Otol, 1984, 5(5): 374-375.
[4] Choi HG, Lee HJ, Lee JS, et al. The Rates and Clinical Characteristics of Pneumolabyrinth in Temporal Bone Fracture[J]. Otol Neurotol, 2015, 36(6): 1048-1053. doi: 10.1097/MAO.0000000000000662
[5] 张裔良, 戴春富. 气迷路的发病机制和处理原则[J]. 中华耳鼻咽喉头颈外科杂志, 2009, 44(5): 433-435. doi: 10.3760/cma.j.issn.1673-0860.2009.05.024
[6] 赵芸芸, 董季平, 宁文德, 等. HRCT诊断外伤性颞骨内耳损伤[J]. 中国医学影像技术, 2017, 33(10): 1493-1496. https://www.cnki.com.cn/Article/CJFDTOTAL-ZYXX201710017.htm
[7] Hidaka H, Miyazaki M, Kawase T, et al. Traumatic pneumolabyrinth: air location and hearing outcome[J]. Otal Neurotol, 2012, 33(2): 123-131. doi: 10.1097/MAO.0b013e318241bc91
[8] Park GY, Choi JE, Cho YS. Traumatic ossicular disruption with isolated fracture of the stapes suprastructure: comparison with incudostapedial joint dislocation[J]. Acta Otolaryngol, 2014, 134(12): 1225-1230. doi: 10.3109/00016489.2014.939302
[9] Ginat DT, de Venecia RK, Curtin HD. Stapediovestibular dislocation depicted on temporal bone computed tomography with 3D rendering[J]. Am J Otolaryngol, 2015, 36(3): 435-436. doi: 10.1016/j.amjoto.2014.08.019
[10] Hough JV. Incudostapedial joint separation: etiology, treatment and significance[J]. Laryngoscope, 1959, 69(6): 644-664.
[11] 余蓉, 陈晓巍. 颞骨骨折致传导性聋的诊断与治疗进展[J]. 听力学及言语疾病杂志, 2010, 18(1): 82-84. doi: 10.3969/j.issn.1006-7299.2010.01.031