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- W1976637979 abstract "Minimally invasive endoscopic and microscopic procedures represent state of the art paranasal sinus surgery techniques in both diagnostic and surgical fields. To combine favorable aspects of both techniques, we evaluated the clinical applicability and effectiveness of multifunctional microendoscopes, providing multiple features to ensure highest accuracy and surveillance when performing crucial steps in paranasal sinus surgery.The study included both anatomic experiments on cadaveric heads and clinical tests on patients undergoing routine paranasal surgery. The systems applicability was evaluated in procedures approaching the frontal and sphenoid sinus. Three different endoscopes, 2 straight and the other 1 with a 90 degrees angle, were tested. They integrate canals for flushing and suction and a working canal for either drilling or obtaining biopsies with a miniaturized forceps. For stereotactic feedback, the applicability in combination with a computer-navigation system was evaluated.Anatomic tests were performed to optimize illumination and to test drilling features and forceps biopsies. In all cases, the frontal sinus ostium and the sphenoid sinus anterior wall was easily identified and enlarged by drilling under visual and stereotactic control. Continuous suction and irrigation ensured a constant visual surveillance by removing drilling debris and blood. Best suited for multifunctional endoscopic surgery were drill heads with a cylinder shape, for placing bore holes along the Z axis, and spherical drill heads, for furbishing and enlarging drill holes.These new instruments have proven their applicability in paranasal sinus surgery. Multifunctional endoscopic procedures were deemed best suited for maneuvers requiring highest precision, such as the surgery of the frontal and sphenoid sinus." @default.
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- W1976637979 date "2005-09-01" @default.
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- W1976637979 title "New Endoscopic Instruments for Paranasal Sinus Surgery" @default.
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- W1976637979 doi "https://doi.org/10.1016/j.otohns.2005.05.046" @default.
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