Objective: To clarify the anatomic characteristics, cause, and surgical outcomes relating to fixation of the stapes footplate in children.
Study Design: Retrospective case review and four-center histopathologic study of temporal bones.
Setting: Tertiary referral center.
Patients: We reviewed charts and histologic specimens from 12 children, aged 7 to 13 years, who underwent surgery for footplate fixation. We also studied stapes footplates in 288 temporal bones from 181 children ranging from newborn (20-44 weeks of gestation) to 13 years of age.
Main Outcome Measure: Anomalies of the stapes footplate in children.
Results: The average age of diagnosis of hearing loss was 6.6 years. Criteria for a diagnosis of otosclerosis were progression of a conductive hearing loss and an intraoperative finding of fixation of the anterior stapediovestibular joint in five patients. In contrast, a nonhomogeneous, thickened, fixed footplate and the absence of an annular ligament were indicators of congenital fixation in six children. In one child, there was neither new bone from the otic capsule nor any obvious otosclerotic foci. In the temporal bone study, 17 of 181 (9.4%) children had anomalies of the stapes footplates, with ankylosis in 4 (2.2%). In two subjects (1.1%), there was an otosclerotic focus not in contact with the stapes footplate.
Conclusion: Children younger than 6 years with various congenital anomalies are more likely to have congenital footplate fixation, which will present intraoperatively as a thickened footplate with a partial or absent annular ligament. Children older than 6 years with progressive conductive hearing loss are more likely to have otosclerosis, which presents as fixation of the anterior stapediovestibular joint. The difference in surgical outcomes is probably related to different degrees of footplate abnormality.
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http://dx.doi.org/10.1097/01.mao.0000172415.72531.89 | DOI Listing |
Eur Ann Otorhinolaryngol Head Neck Dis
December 2024
Service d'ORL et de chirurgie cervico-faciale, centre hospitalo-universitaire, Dijon, France; Laboratoire ICMUB, UMR CNRS 6302, université de Bourgogne, Dijon, France.
Aim: To evaluate the audiometric results of tympanoplasty with stapedectomy and insertion of a synthetic total ossicular replacement prosthesis (TORP).
Material And Methods: Retrospective observational study conducted on a cohort of 15 patients (16 ears) aged 10 to 58 years (mean: 36 years) with chronic otitis media (COM) and tympanosclerosis (n=9), stapediovestibular ankylosis (n=3), minor aplasia (n=3) or post-traumatic ossicular dislocation (n=1). Treatment consisted in tympanoplasty with stapedectomy and TORP placement by the same operator, between December 1, 2012 and January 30, 2023, in a French university hospital department, with follow-up ranging from 2 to 92 months (mean: 24 months).
Indian J Otolaryngol Head Neck Surg
December 2024
Patiala, Punjab 147001 India.
AJNR Am J Neuroradiol
November 2024
From the Department of Radiology (Shaojie Chang, John C. Benson, John I. Lane, Michael R Bruesewitz, Joseph R Swicklik, Jamison E. Thorne, Emily K. Koons, Cynthia H. McCollough, Shuai Leng) and Department of Otolaryngology-Head and Neck Surgery (Matthew L. Carlson), Mayo Clinic, Rochester, MN, 55905, USA.
Background And Purpose: Ultra-high-resolution (UHR) photon-counting-detector (PCD) CT improves image resolution but increases noise, necessitating use of smoother reconstruction kernels that reduce resolution below the system's 0.110 mm maximum spatial resolution. To address this, a denoising convolutional neural network (CNN) was developed to reduce noise in images reconstructed with the available sharpest reconstruction kernel while preserving resolution for enhanced temporal bone visualization.
View Article and Find Full Text PDFBackground: To create and develop a delivery approach for clinical inner ear gene therapy, we conducted a study of trans-round window membrane (RWM) microinjection using a pipetting microneedle via transcanal endoscopic ear surgery (TEES).
Methods: The implementation of the trans-RWM microinjection surgery involved seven cadaveric specimens, and the surgical procedures and the pipetting microneedle were developed and optimized. The TEES procedures included tympanic cavity visualization, RWM exposure, stapes footplate perforation, and trans-RWM microinjection.
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