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    Öğe
    Comprehensive microsurgical anatomy of the jugular foramen and review of terminology
    (Elsevier Sci Ltd, 2001) Tekdemir, I.; Tuccar, E.; Aslan, A.; Elhan, A.; Ersoy, M.; Deda, H.
    The microsurgical anatomy of the jugular foramen was studied in 12 formalin preserved cadavers (24 foramina) and 40 dry-skulls (80 foramina). The jugular foramen was exposed by microsurgical dissection with drilling from a superior to inferior direction. Observations regarding dural architecture of the jugular foramen and relationships between neurovascular structures passing through the foramen were noted in cadavers. Normal bony construction of the foramen and its variational anatomy were examined in dry-skull specimens. Using photographs and drawings, the anatomy of the jugular foramen is presented and related terminology is discussed in the light of a literature review. (C) 2001 Harcourt Publishers Ltd.
  • [ X ]
    Öğe
    Critically located cavernous malformations
    (Georg Thieme Verlag Kg, 2007) Batay, F.; Baderrici, G.; Deda, H.
    Introduction: The aim of this study was to evaluate the clinical results of patients who underwent resection with the aid of microsurgical techniques and stereotactic and image-guided surgery for critically located cavernous malformations which still represent a considerable surgical challenge due to the close proximity of vital and eloquent structures. Methods: Between 1997 and 2003,12 patients with critically located cavernous malformations (CMs) underwent surgical resections at Ankara University Hospital. CMs of the pons (n=3), medulla oblongata. (n=l), cavernous sinus (n=3), motor cortex (n=4) and the newly defined superior cerebellar peduncle (n=l) were treated using image-guidance and advanced microsurgical principles. Preoperative assessment was done with CT, MRI and angiography. Lesion locations, clinical presentations and outcome were analyzed. The surgical approach was chosen as lateral suboccipital (n = 4), parietal (n = 4), cranioorbitozygomatic (n = 3) and retrosigmoid (n = 1). Results: All CMs were readily identified and completely removed with no permanent morbidity and mortality. The immediate outcome after surgery was improved for 8 patients (66.6%). Long-term outcome was unchanged for one patient and a proved good surgical outcome for three patients, during the mean follow-up period. Discussion: Stereotactic methods together with image-guidance and microsurgical techniques allow the creation of most effective and safe corridors to access the CMs in eloquent regions with a minimization of tissue manipulation and low risk of permanent neurological deficit.