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学科主题: 临床医学
题名:
Stapes prosthesis attachment: The effect of crimping on sound transfer in otosclerosis surgery
作者: Huber, AM; Ma, FR; Felix, H; Linder, T
关键词: stapes surgery ; stapedotomy ; otosclerosis ; prosthesis ; laser Doppler
刊名: LARYNGOSCOPE
发表日期: 2003-05-01
卷: 113, 期:5, 页:853-858
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Medicine, Research & Experimental ; Otorhinolaryngology
研究领域[WOS]: Research & Experimental Medicine ; Otorhinolaryngology
关键词[WOS]: STAPEDECTOMY
英文摘要:

Objectives/Hypothesis: Although in stapes surgery successful hearing improvement may be achieved in the majority of patients, unsatisfactory closure of the air-bone gap can be recorded. One of many reasons for unexpected failures of stapes surgery may be the insufficient crimping of a stapes prosthesis onto the incus. The objectives of the study were to assess the amount of sound transmission loss in response to the quality of prosthesis crimping and to identify a required loop attachment pattern to obtain good sound transmission results. Study Design: Experimental. Methods A temporal bone model was developed to measure the sound transmission properties between incus and prosthesis on 17 fresh human temporal bones. The attachment of a titanium stapes piston was assessed without crimping, followed by loose crimping and tight fixation to the incus, using scanning laser Doppler interferometry, endoscopic photography, micro grinding technique, and scanning electron microscopy. An algorithm had to be developed to simulate acoustical stimulation using electromechanical stimulation. Results: Optimal tight crimping of the stapes piston revealed consistent good sound transfer function ranging from 0 to 7 dB loss, and loss remained, on average, at 2 dB. The mean transmission losses for conditions of loose crimping and no crimping were surprisingly small (within 10 dB). However, these unusual crimping conditions allowed a wide range of losses up to 28 dB. A close coupling at least at two opposite points was obligatory to obtain consistently good results. Conclusions: Perfect hearing reconstruction necessitates ideal crimping of a prosthesis to obtain consistently good results. However, the final functional gain depends on many different intraoperative and postoperative factors.

语种: 英语
WOS记录号: WOS:000182729200015
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/64307
Appears in Collections:北京大学第三临床医学院_耳鼻喉科_期刊论文

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作者单位: 1.Univ Zurich Hosp, Dept Otorhinolaryngol Head & Neck Surg, CH-8091 Zurich, Switzerland
2.Beijing Med Univ, Third Teaching Hosp & Clin Med Coll, Dept Otolaryngol, Beijing 100083, Peoples R China
3.Kantonsspit Luzern, Dept Otorhinolaryngol Head & Neck Surg, Luzern, Switzerland

Recommended Citation:
Huber, AM,Ma, FR,Felix, H,et al. Stapes prosthesis attachment: The effect of crimping on sound transfer in otosclerosis surgery[J]. LARYNGOSCOPE,2003,113(5):853-858.
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