Division of Otolaryngology-Head and Neck Surgery, Foothills Medical Centre, 203-3320 17th Avenue SW, Calgary, Alberta.
J Otolaryngol Head Neck Surg. 2011 Feb;40(1):8-13.
To compare the SMart piston stapes prosthesis to a standard manual crimp prosthesis on operative time and air-bone gap (ABG) closure in stapedectomy.
Retrospective chart review.
Tertiary referral centre.
The charts of patients undergoing stapedectomy for otosclerosis were analyzed. We compared the results of 76 patients (80 ears) who received the autocrimping SMart piston prosthesis to those of 21 patients (21 ears) who received the conventional manual crimp Fisch-type prosthesis. Data were analyzed using t-test, chi-square, or two-way analysis of variance where appropriate.
Operative time with ABG closure as a secondary outcome measure.
There was a significant difference in operative time between the Fisch-type prosthesis and the SMart piston prosthesis groups. The operation required 28.9 ± 3.2 minutes when using the Fisch-type prosthesis, whereas 21.2 ± 2.4 minutes were needed when using the SMart piston (p < .001). There was a significant improvement in postoperative ABG for both the Fisch-type piston (28.1 ± 3.1 to 9.0 ± 1.4, p < .001) and the SMart piston (25.1 ± 3.7 to 8.2 ± 2.5, p < .001) groups.
Use of the SMart piston prosthesis results in ABG closure similar to that of the traditional Fisch-type prosthesis but offers the added advantage of reduced operative time.
比较 SMart 活塞镫骨假体与标准手动卷曲假体在镫骨切除术手术时间和气骨导差（ABG）闭合方面的差异。
回顾性图表审查。
三级转诊中心。
分析接受镫骨切除术治疗耳硬化症的患者的图表。我们将接受自动卷曲 SMart 活塞假体的 76 例患者（80 耳）的结果与接受传统手动卷曲 Fisch 型假体的 21 例患者（21 耳）的结果进行比较。使用 t 检验、卡方检验或适当情况下的双向方差分析进行数据分析。
以 ABG 闭合为次要观察指标的手术时间。
Fisch 型假体和 SMart 活塞假体组之间的手术时间存在显著差异。使用 Fisch 型假体时，手术时间为 28.9 ± 3.2 分钟，而使用 SMart 活塞时则需要 21.2 ± 2.4 分钟（p <.001）。Fisch 型活塞（28.1 ± 3.1 至 9.0 ± 1.4，p <.001）和 SMart 活塞（25.1 ± 3.7 至 8.2 ± 2.5，p <.001）两组术后 ABG 均有显著改善。
使用 SMart 活塞假体可达到与传统 Fisch 型假体相似的 ABG 闭合效果，但具有手术时间缩短的额外优势。
