Cox Matthew D, Russell James S, Dornhoffer John L
Department of Otolaryngology-Head & Neck Surgery, Division of Otology & Neurotology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
Department of Otolaryngology-Head & Neck Surgery, Division of Otology & Neurotology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA.
Otolaryngol Head Neck Surg. 2015 Mar;152(3):501-5. doi: 10.1177/0194599814564538. Epub 2014 Dec 30.
The titanium stapes footplate prosthesis (FPP) was designed to ensure a stable connection of a total ossicular replacement prosthesis (TORP) to the stapes footplate and maximize acoustic coupling by centering the footplate on the oval window. Our goal was to assess the impact of the FPP on TORP ossiculoplasty outcomes.
Case series with chart review.
Tertiary care center.
Adult patients undergoing TORP ossiculoplasty with (n=53) or without (n=108) a stapes FPP.
Rate of prosthesis displacement and audiologic outcomes were tabulated for statistical analysis.
A lower rate of prosthesis displacement and statistically better audiologic outcomes were seen in FPP patients. The pure-tone average air-bone gap (PTA-ABG) was closed to <20 dB in 69.8% (37/53) of patients in the study arm and 44.4% (48/108) of patients in the control arm (P=.003). The PTA-ABG was decreased by a mean±SD of 19.3±11.7 dB and 12.6±11.0 dB in the study and control groups, respectively (P=.0012).
Use of the titanium stapes FPP during TORP ossiculoplasty provides a statistically significant advantage in short-term PTA-ABG closure and a higher rate of successful rehabilitation of conductive hearing loss. Further studies are necessary to assess any long-term advantages a FPP may offer.
钛质镫骨足板假体（FPP）旨在确保全听骨链置换假体（TORP）与镫骨足板的稳定连接，并通过使足板位于椭圆窗中心来最大化声耦合。我们的目标是评估FPP对TORP听骨成形术结果的影响。
病例系列并进行图表回顾。
三级医疗中心。
接受TORP听骨成形术的成年患者，其中使用（n = 53）或未使用（n = 108）镫骨FPP。
将假体移位率和听力学结果制成表格进行统计分析。
FPP组患者的假体移位率较低，且听力学结果在统计学上更好。研究组69.8%（37/53）的患者和对照组44.4%（48/108）的患者的纯音平均气骨导差（PTA - ABG）缩小至<20 dB（P = 0.003）。研究组和对照组的PTA - ABG分别平均±标准差降低了19.3±11.7 dB和12.6±11.0 dB（P = 0.0012）。
在TORP听骨成形术中使用钛质镫骨FPP在短期PTA - ABG闭合方面具有统计学上的显著优势，并且传导性听力损失成功康复率更高。有必要进一步研究以评估FPP可能带来的任何长期优势。
