ArticleScientific reports2022
Maturation of the internal auditory canal and posterior petrous bone with relevance to lateral and posterolateral skull base approaches.
Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 10 citations in OpenAlex.
- Internal Acoustic Meatus: Morphological Peculiarities and Clinical Implications.Audiology research · 2026Article
- Combined Petrosectomy in a 7-Year-Old Patient: Case-Based Video Illustration and Technical Considerations for Petrosal Approaches in the Pediatric Population.Neurosurgery practice · 2026Article
- Computerized Tomography Morphometric Assessment of the Internal Acoustic Meatus: Sex Differences, Orientation Angles, and Surgical Implications.Journal of clinical medicine · 2026Article
- Pediatric internal auditory canal volume: age-related changes and sex differences in a cohort of 340 ears.Surgical and radiologic anatomy : SRA · 2025Article
- Comparison of Inner Ear Volume Between Humans and Sheep Using MRI.Journal of the Association for Research in Otolaryngology : JARO · 2025Article
- Morphometric analysis of the internal auditory canal by developmental change using three-dimensional computed tomography.Surgical and radiologic anatomy : SRA · 2024Article
- Internal auditory canal volume in normal and malformed inner ears.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2023Article
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Authors and funding
9 authors at 5 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Anatomic knowledge of the internal auditory canal (IAC) and surrounding structures is a prerequisite for performing skull base approaches to the IAC. We herein perform a morphometric analysis of the IAC and surgically relevant aspects of the posterior petrous bone during pediatric maturation, a region well-studied in adults but not children. Measurements of IAC length (IAC-L), porus (IAC-D) and midpoint (IAC-DM) diameter, and distance from the porus to the common crus (CC; P-CC) and posterior petrosal surface (PPS) to the posterior semicircular canal (PSC; PPS-PSC) were made on thin-cut axial CT scans from 60 patients (grouped by ages 0-3, 4-7, 8-11 12-15, 16-18, and > 18 years). IAC-L increased 27.5% from 8.7 ± 1.1 at age 0-3 to 11.1 ± 1.1 mm at adulthood (p = 0.001), with the majority of growth occurring by ages 8-11. IAC-D (p = 0.52) and IAC-DM (p = 0.167) did not significantly change from ages 0-3 to adult. P-CC increased 31.1% from 7.7 ± 1.5 at age 0-3 to 10.1 ± 1.5 mm at adulthood (p = 0.019). PPS-PSC increased 160% from 1.5 ± 0.7 at age 0-3 to 3.9 ± 1.2 mm at adulthood (p < 0.001). The majority of growth in P-CC and PPS-PSC occurred by ages 12-15. Knowledge of these patterns may facilitate safe exposure of the IAC in children.
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