This paper explains and illustrates the surgical procedure, step by step, to close a dehiscence of Superior Semicircular Canal using a transmastoid approach. This approach has several advantages over the middle cranial fossa craniotomy. Firstly, the morbidity is substantially lower. Secondly, mastoid cortical bone graft is less likely to get reabsorbed than outer table temporal bone. Therefore, surgical result is bound to be better. Finally, most otologists are more familiar and feel more comfortable with the transmastoid route than with the middle fossa one.
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Transmastoid superior semicircular canal dehiscence plugging: VHIT findings.
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Department of Oto-Rhino-Laryngology, Head & Neck Surgery, Center of Neurosensorial-Head & Neck Diseases, Lariboisière Hospital, University of Paris Cité, Assistance Publique des Hôpitaux de Paris & UMR 1141 Center for the Developing Brain, Paris Biobank BB-0033-00064, Platform of Biopathology and Innovative Technologies for Health, Paris, France.
Background: Superior canal dehiscence syndrome (Minor's syndrome) is a condition characterized by a bony defect in the superior semicircular canal (SSCC), with treatment primarily being surgical, notably through plugging of SSCC.
Aims/objectives: To examine the clinical outcome and postoperative VHIT findings after transmastoid plugging of the SSCC.
Materials And Methods: Patients having a superior semicircular canal dehiscence (SSCCD) syndrome with debilitating symptoms who underwent a plugging of the SSCC a transmastoid approach were included.
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View Article and Find Full Text PDFSuperior semicircular canal dehiscence isolation by transmastoid two-point canal plugging with preservation of the vestibulo-ocular reflex.
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Department of Otorhinolaryngology, Head and Neck Surgery, Martin Luther University Halle-Wittenberg, University Hospital Halle (Saale), Ernst-Grube-Str. 40, 06120, Halle (Saale), Germany.
This article describes the surgical treatment of superior semicircular canal dehiscence syndrome (SCDS) by isolating the dehiscence using transmastoid two-point canal plugging while preserving the high-frequency vestibulo-ocular reflex (VOR) of the affected semicircular canal. The superior semicircular canal is opened via a transmastoid approach anterior (as far from the ampulla as possible) and posterior to the dehiscence and then plugged with connective tissue and bone dust. In two clinical exemplary cases, vestibular testing showed that the VOR measured by video head impulse (vHIT) test was preserved (patient 1: gain preoperative 0.
View Article and Find Full Text PDF[Superior semicircular canal dehiscence isolation by transmastoid two-point canal plugging with preservation of the vestibulo-ocular reflex. German version].
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Universitätsklinik und Poliklinik für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie, Universitätsklinikum Halle (Saale), Martin-Luther-Universität Halle-Wittenberg, Ernst-Grube-Str. 40, 06120, Halle (Saale), Deutschland.
This article describes the surgical treatment of superior semicircular canal dehiscence syndrome (SCDS) by isolating the dehiscence using transmastoid two-point canal plugging while preserving the high-frequency vestibulo-ocular reflex (VOR) of the affected semicircular canal. The superior semicircular canal is opened via a transmastoid approach anterior (as far from the ampulla as possible) and posterior to the dehiscence and then plugged with connective tissue and bone dust. In two clinical exemplary cases, vestibular testing showed that the VOR measured by video head impulse (vHIT) test was preserved (patient 1: gain preoperative 0.
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