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The presigmoid retrolabyrinthine approach: Technical note
L Troude1, G Baucher1, J-P Lavieille1
1Department of Neurosurgery, North University Hospital, APHM-AMU, Chemin des Bourrely, 13015 Marseille, France.
Background:
The 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.
Methods:
The 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.
Conclusion:
The 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.
