Skull Base Deficiency in Superior Semicircular Canal Dehiscence (SSCD): Evidence for Incomplete Development

Otology & Neurotology 2026

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Authors: William R. Schneider, Douglas J. Totten, Hunter L. Elms, Brian D. Graner, Charles W. Yates, Evan C. Cumpston, Rick F. Nelson
DOI: 10.1097/mao.0000000000004911
Cited by: 1
References: 24

Abstract

OBJECTIVE: Determine whether Superior semicircular canal dehiscence (SSCD) patients have thinner skull bases compared with controls and spontaneous cerebrospinal fluid leak (sCSFL) patients. STUDY DESIGN: Case control. SETTING: Tertiary referral center. PATIENTS: Radiographically confirmed SSCD, temporal bone sCSFL, matched (BMI and age), and unmatched control cohorts. INTERVENTION: Measurement of calvarium, zygomatic arch, and lateral skull base thickness. MAIN OUTCOME MEASURES: Compare BMI, average skull base, calvarial, and zygomatic arch thicknesses of controls and sCSFL patients. RESULTS: SSCD patients have an average [SD] BMI similar to unmatched controls (29.2 [7.7] vs. 31.4 [7.9] kg/m 2 , P =0.18), but significantly lower BMI than sCSFL patients (29.2 [7.7] vs. 38.5 [10.6] kg/m 2 , P

Fields of Study & Subjects

Glaucoma and retinal disorders Vestibular and auditory disorders Head and Neck Surgical Oncology

Publication details

Journal / source
Otology & Neurotology
Publisher
Ovid Technologies (Wolters Kluwer Health)
Volume
47
Issue
8
Pages
1039–1043
Publication date
6 April 2026
Language
EN