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The presigmoid retrolabyrinthine approach: Technical note |
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| Institution: | 1. Department of Neurosurgery, Strasbourg University Hospital, Strasbourg, France;2. ICU, Strasbourg University Hospital, Strasbourg, France;1. Neurosurgery department, Holy Family Red Crescent Medical College, 1, Eskaton Garden road, 1000 Dhaka, Bangladesh;2. Faculty of medicine, University of Cartagena, Center for biomedical research (CIB), Cartagena, Colombia;1. Department of neurosurgery, hospital Força Aérea do Galeão, Rio de Janeiro, Brazil;2. Department of pathology, hospital Força Aérea do Galeão, Rio de Janeiro, Brazil;1. IIAIGC Study Center, 11, Arlington Ct, VT 05408 Burlington, USA;2. Department of Neurologic Surgery, Mayo Clinic, 200, First St SW, MN 55905 Rochester, USA;3. Department of Neurosurgery, Ulm University Hospital, Albert-Einstein-Allée 23, D-89081 Ulm, Germany;4. Department of Neurosurgery, Cantonal Hospital of Winterthur, Brauerstr, 15, CH-8401, Winterthur, Switzerland |
| Abstract: | BackgroundThe retrolabyrinthine approach is classified among the posterior petrosectomies. Its goal is to achieve an enlarged mastoidectomy while sparing the intrapetrous neurotologic structures in order to offer maximal exposure of the posterior cerebellopontine angle compound.MethodsThe stages of the procedure are subsequently the skeletonization of the sigmoid sinus, wide opening of the mastoid antrum and exposure of the semicircular canals. We present herein the technique, indications and limitations of the retrolabyrinthine approach.ConclusionThe retrolabyrinthine approach is a demanding technique. Nowadays the retrolabyrinthine approach is routinely combined to additional resections of the petrous bone, so-called “combined petrosectomies”, to target the jugular foramen or the petroclival area. |
| Keywords: | Cerebellopontine angle Petrous bone Presigmoid approach SemiciRcular canals Sinodural angle (Citelli's angle) Skull base surgery AP"} {"#name":"keyword" "$":{"id":"kw0040"} "$$":[{"#name":"text" "_":"Anterior Petrosectomy CP"} {"#name":"keyword" "$":{"id":"kw0050"} "$$":[{"#name":"text" "_":"Combined Petrosectomy EAC"} {"#name":"keyword" "$":{"id":"kw0060"} "$$":[{"#name":"text" "_":"External Auditory Canal IAC"} {"#name":"keyword" "$":{"id":"kw0070"} "$$":[{"#name":"text" "_":"Internal Auditory Canal SCC"} {"#name":"keyword" "$":{"id":"kw0080"} "$$":[{"#name":"text" "_":"Semicircular Canal SS"} {"#name":"keyword" "$":{"id":"kw0090"} "$$":[{"#name":"text" "_":"Sigmoid Sinus |
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