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Transcanal Excision of Exostoses: Large Series Comparing Bone Removal Methods.
Otolaryngology - Head and Neck Surgery 2023 March 24
OBJECTIVE: External auditory exostosis (EAE) is a condition of progressive temporal bone growth into the external auditory canal most commonly from repeat cold water and wind exposure. Several tools have been utilized for EAE excision with varying implications for intra- and postoperative complications. However, comparisons of osteotome and microdrill are made difficult due to the few published cases and intervariability between surgeons. Furthermore, evidence is needed to analyze the safety of novel supplemental tools such as the piezoelectric bone-cutting device.
STUDY DESIGN: Retrospective chart review.
SETTING: Medical clinic and surgery center.
METHODS: A total of 413 subjects representing 472 ears met the inclusion criteria. Of which 159 ears were operated on using osteotome alone (OA), 271 using osteotome with a drill (OD), and 42 with osteotome with piezoelectric (OP). Charts were analyzed for the most reported intraoperative complications and postoperative symptoms and complications.
RESULTS: There were no significant differences in the rate of tympanic membrane perforations nor in total intraoperative complications between OA, OD, or OP. The OD group contained the only nonperforation intraoperative event. OA had the lowest or near lowest incidence of all symptoms analyzed. OA showed a significantly lower incidence of tinnitus when compared to OD and OP.
CONCLUSION: We found that OA performed the best, though not statistically significant in most measures, with regard to mitigating rates of complications postsurgery. Our findings suggest OA provides lower risk intraoperatively and postoperatively for patients undergoing transcanal exostosis excision.
STUDY DESIGN: Retrospective chart review.
SETTING: Medical clinic and surgery center.
METHODS: A total of 413 subjects representing 472 ears met the inclusion criteria. Of which 159 ears were operated on using osteotome alone (OA), 271 using osteotome with a drill (OD), and 42 with osteotome with piezoelectric (OP). Charts were analyzed for the most reported intraoperative complications and postoperative symptoms and complications.
RESULTS: There were no significant differences in the rate of tympanic membrane perforations nor in total intraoperative complications between OA, OD, or OP. The OD group contained the only nonperforation intraoperative event. OA had the lowest or near lowest incidence of all symptoms analyzed. OA showed a significantly lower incidence of tinnitus when compared to OD and OP.
CONCLUSION: We found that OA performed the best, though not statistically significant in most measures, with regard to mitigating rates of complications postsurgery. Our findings suggest OA provides lower risk intraoperatively and postoperatively for patients undergoing transcanal exostosis excision.
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