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  • Title: Use of the 70-degree diamond burr in the management of complicated frontal sinus disease.
    Author: Chandra RK, Schlosser R, Kennedy DW.
    Journal: Laryngoscope; 2004 Feb; 114(2):188-92. PubMed ID: 14755187.
    Abstract:
    OBJECTIVES/HYPOTHESIS: Management of frontal sinus disease may require drill-out of bone in the frontal recess for access, ventilation, and drainage of the sinus cavity; removal of osteitic foci; or resection of neoplastic tissue. Technological advances, particularly burrs with angles of 70 degrees and stereotactic navigational imaging, offer new opportunities to provide access and minimize trauma. The preliminary study evaluates the safety and efficacy of such minimally invasive approaches. STUDY DESIGN: Retrospective review. METHODS: The authors describe the use of a 70-degree diamond burr in a series of 10 patients with complicated frontal sinus disease who underwent endoscopic frontal sinusotomy under stereotactic imaging guidance. RESULTS: The diagnoses consisted of frontal sinus mucocele (n = 4), chronic frontal sinusitis (n = 1), Pott's puffy tumor after frontoethmoid fracture (n = 1), and recurrent inverting papilloma (n = 4). Partial septectomy was required in 6 of 10 patients. No complications were attributable to the drill-out procedure, despite a pre-existing frontoethmoid bony dehiscence in 6 of 10 patients. One patient had a CSF leak during removal of tumor from the skull base. One patient required revision frontal sinusotomy 10 months after the initial procedure, and another required further surgery for residual inverting papilloma on the medial orbital wall. All frontal sinusotomies were patent at last follow-up (mean period, 9.3 mo). CONCLUSION: Extended endoscopic frontal sinusotomy may be necessary in the management of complicated frontal sinus inflammatory disease and inverting papilloma. The 70-degree diamond burr is a safe and effective tool for access to the frontal recess. Complication rates appear to be similar to those for other extended frontal sinusotomy approaches.
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