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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
대한이비인후과학회 대한이비인후-두경부외과학회지 대한이비인후과학회지 두경부외과학 제47권 제6호
발행연도
2004.1
수록면
530 - 534 (5page)

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Background and Objectives:Primary goals of surgery for chronic ear disease are infection control and hearing restoration. When performing osiculoplasty with total osicular replacement prosthesis (TORP), it is dificult to kep the prosthesis stable. We Subjects and Method:Thirty nine cases of osiculoplasty performed between January 2000 and February 2003 were analyzed. The folow-up period was from 6 to 31 months (mean 13.1). The pure tone average threshold of the frequencies of 0.5, 1, 2, 3 kHz was used to evaluate results. The degree of hearing improvement, previous mastoid operation method, disease, and extrusion rate of pros-thesis were analyzed. To stabilize the TORP, we made a hole in the tragal cartilage and put the shaft of the prosthesis into the hole. Results:A sucesful hearing gain was defined as a postoperative air-bone gap of ≤ 20 dB. Acording to this criteria, the success rate was 43.6%. Averages of pre and postoperative air conduction were 57.6 dB and 47.1 dB, respectively. The degree of hearing improvement according to the types of mastoid surgery were 48.1% and 33.3% for intact canal wal mastoidectomy and open cavity mastoidectomy, respectively. Four patients underwent reoperation. The findings were 2 cases of short TORP and 2 (2.6%). Conclusion:With our method, TORP was kept stable in the oval window niche. However, for hearing improvement, other factors such as midle ear mucosa status or Eustachian tube function are important and further investigation is needed.

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