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  • Title: Graftless Primary Dural Closure Following Retrosigmoid Approach: Doing More With less.
    Author: Çavuşoğlu N, Erol G, Sevgi UT, Bulgur F, Doğruel Y, Luzzi S, Gadol AAC, Güngor A.
    Journal: World Neurosurg; 2024 Sep; 189():e1006-e1012. PubMed ID: 39004178.
    Abstract:
    INTRODUCTION: Achieving watertight dural closure without grafts via the retrosigmoid approach can be challenging, contributing to a significant rate of postoperative cerebrospinal fluid (CSF) leaks. This study describes a dural incision technique for achieving primary dural closure without grafts following the retrosigmoid approach and presents clinical data from the authors' experience. METHODS: Clinical and surgical data of 227 patients who underwent the dural incision technique following the retrosigmoid approach for various pathologies were retrospectively reviewed. To achieve no-graft watertight dural closure, the dural incision involves 2 critical steps: a 1 cm transverse incision of the dura parallel to the foramen magnum to drain CSF from the cisterna magna, and a vertical linear opening of the retrosigmoid dura. Dural incisions were closed watertight with vicryl 4/0 running sutures, without the use of grafts, fibrin glue, hemostatic overlays, or dural substitutes. Pre- or postoperative lumbar drainage was not employed. RESULTS: Primary watertight dural closure was successfully achieved in all patients without the use of grafts or duraplasty. The average duration of dura closure was 17.7 minutes. During an average follow-up period of 49.3 months, there were no instances of CSF leaks or meningitis. CONCLUSIONS: In the authors' preliminary experience, the linear dural incision described herein was effective for achieving a no-graft, watertight primary dural closure in the retrosigmoid approach, with no CSF leaks or meningitis in our series. Validation of these preliminary data in a larger patient cohort is necessary.
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