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  • Title: Reliability of microdrill stapedotomy: comparison with pick stapedotomy.
    Author: Yavuz H, Caylakli F, Ozer F, Ozluoglu LN.
    Journal: Otol Neurotol; 2007 Dec; 28(8):998-1001. PubMed ID: 18043427.
    Abstract:
    OBJECTIVE: To assess the hearing outcomes and complications of the microdrill and pick stapedotomy techniques. PATIENTS: We assessed 123 primary otosclerosis operation in 103 patients who had more than 1 year follow-up (71 microdrill; 52 pick stapedotomies). There were 87 women and 36 men in the study group (mean age, 44 +/- 11.2 years) at surgery. INTERVENTION: Stapedotomy for otosclerosis. MAIN OUTCOME MEASURES: Pure tone hearing thresholds and clinical evaluation for complications. RESULTS: In the microdrill group, preoperative mean air conduction was 61 dB, and mean bone conduction was 27 dB, postoperatively, these values improved to 31 dB and 16 dB, respectively. In the pick group, mean air conduction was 61 dB, and mean bone conduction was 27 dB, which improved postoperatively to 33 dB and 18 dB, respectively. Postoperative hearing gains were similar in both groups (p > 0.005). The mean postoperative gain in bone conduction was significant (p < 0.001) in each group: 11 dB in the microdrill group and 9 dB in the pick group, with no significant difference between the two groups. The preoperative air-bone gap was 34 dB in both groups, and improved to 15 dB in both. Complication rates were similar. CONCLUSION: The microdrill and pick stapedotomy techniques produced similar hearing results and complication rates. Within the limitations of the present study, we found no evidence of microdrill-induced acoustic trauma. The microdrill can be a useful technique in performing a stapedotomy and seems to produce similar results to those associated with pick stapedotomy.
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