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1.
目的 探讨胆脂瘤中耳炎患者行开放式鼓室成形伴听骨链重建的效果和影响因素.方法 分析142例胆脂瘤患者,行开放式鼓室成形术伴一期听骨链重建,随访24月,记录术后并发症、纯音平均听阈、平均气骨导差和听力重建成功率.结果随访期间未发现鼓膜内陷袋形成及胆脂瘤复发,术后干耳率达96.5%,听骨赝复物脱出4例(2.8%),气导平均听阈降低11.6dB,气骨导差较术前缩小7.4dB,70例患者气骨导差<20dB,听力重建总成功率达49.3%.听力重建成功的关键主要取决于术腔感染控制、咽鼓管功能、病变范围、听骨赝复物材料和手术技术.结论 虽然影响因素较多,开放式鼓室成形伴一期听骨链重建仍是胆脂瘤中耳炎患者安全有效的术式,术后并发症少,复发率低,听力重建效果令人满意.  相似文献   

2.
目的:探讨经典Wullstein Ⅲ型鼓室成形术在慢性化脓性中耳炎手术中的适应证及其术后听力效果。方法回顾性分析行开放式Ⅲ型鼓室成形术的患者34例(34耳),患者均有听骨链破坏而镫骨结构完整,鼓膜内陷与镫骨头或砧骨豆状突直接连接,根据术中是否植入钛合金部分人工听骨(partial ossicular replacement prosthesis,PORP)分为两组, Wullstein Ⅲ型鼓室成形术(Ⅲ型组)11例和植入钛合金部分人工听骨(PORP组)23例。分别比较两组术后0.5、1、2和4 kHz的平均气导听阈、平均气骨导差的变化情况。结果Ⅲ型组患者术前平均气导听阈为46.59±16.60 dB HL,术后为34.89±10.34 dB HL,气导听阈提高11.70±19.30 dB HL;PORP组术前平均气导听阈为44.23±12.31 dB HL,术后为37.08±14.36 dB HL,提高7.14±14.39 dB HL;Ⅲ型组术前平均气骨导差(air-bone gap,ABG)为23.98±13.08 dB HL,术后为16.25±6.98 dB HL,缩小7.73±14.93 dB HL;PORP型组术前平均ABG为26.58±10.27 dB HL,术后为19.40±13.28 dB HL,缩小7.17±13.63 dB HL。两组患者在气导听阈提高值及ABG缩小的差异均无显著统计学意义(P&gt;0.05)。结论开放式鼓室成形术中,如果鼓膜内陷与镫骨头或砧骨豆状突形成连接,可以予以保留,短期随访术后听力水平与植入PORP重建听骨链的效果相当,长期效果还需随访观察。  相似文献   

3.
目的 探讨自体骨重建听骨链在开放式鼓室成形术中的应用效果及其影响因素。方法 回顾性分析2014年1月~2016年7月华中科技大学同济医学院附属荆州中心医院收治的126例行开放式鼓室成形+自体骨听骨链重建术患者的临床资料,随访6~24个月,记录术后并发症、纯音听阈及气骨导差。结果 随访期间无1例自体骨脱出,未发现鼓膜内陷袋形成或胆脂瘤复发,术后干耳率达95.3%。术后气导听阈由(52.7±7.4)dB下降为(39.0±9.1)dB,气骨导差由(27.4±6.9)dB缩小为(20.8±6.2)dB。术后气骨导差<20 dB者88例,手术成功率达69.8%(88/126)。所有患者均未出现术后并发症。Logistic回归分析显示自体骨重建听骨链术后听力效果与镫骨板上结构及锤骨柄的存在与否显著相关。结论 自体骨应用于开放式鼓室成形听骨链重建术中效果好。镫骨板上结构及锤骨柄的存在与否在一定程度上提示预后。  相似文献   

4.
目的探讨自体骨重建听骨链在开放式鼓室成形术中的应用效果及其影响因素。方法回顾性分析2014年1月~2016年7月华中科技大学同济医学院附属荆州中心医院收治的126例行开放式鼓室成形+自体骨听骨链重建术患者的临床资料,随访6~24个月,记录术后并发症、纯音听阈及气骨导差。结果随访期间无1例自体骨脱出,未发现鼓膜内陷袋形成或胆脂瘤复发,术后干耳率达95.3%。术后气导听阈由(52.7±7.4)dB下降为(39.0±9.1)dB,气骨导差由(27.4±6.9)dB缩小为(20.8±6.2)dB。术后气骨导差<20 dB者88例,手术成功率达69.8%(88/126)。所有患者均未出现术后并发症。Logistic回归分析显示自体骨重建听骨链术后听力效果与镫骨板上结构及锤骨柄的存在与否显著相关。结论自体骨应用于开放式鼓室成形听骨链重建术中效果好。镫骨板上结构及锤骨柄的存在与否在一定程度上提示预后。  相似文献   

5.
60例不同材料听骨链重建术的对比分析   总被引:2,自引:1,他引:1  
目的 回顾性分析Ⅲa型鼓室成形术采用自体和人工材料重建听骨链在听力改善、手术时间及费用的差别,为听骨链重建材料的选择提供参考.方法 对接受Ⅲa型鼓室成形术使用自体砧骨、多孔聚乙烯部分听骨和钛质部分听骨进行听骨链重建的随访资料完整的60例(60耳)进行回顾性总结,其中32例为闭合式手术,28例为开放式手术.听力统计以500、1000、2000和4000 Hz的平均气骨导差值计算.结果闭合式手术中自体砧骨组、多孔聚乙烯部分听骨、钛质部分听骨三组比较,术后平均气骨导差分别缩小(16.7±15.0)dB、(18.8±15.3)dB、(14.7±7.7)dB,均有明显改善,各组听力改善程度没有显著差别.开放式手术的自体砧骨组的听力改善不如人工听骨的两组听力改善.三组的手术时间没有显著差别,但是采用自体砧骨的住院费是最低的,使用钛质听骨显著增加了医疗费用.结论 自体和人工听骨链重建材料都可以有效提高听力,选择自体砧骨的鼓室成形术可以减少医疗费用.但在合并开放式乳突根治术时听力改善不如使用人工听骨材料.  相似文献   

6.
目的探讨钛质人工听骨在开放式乳突根治鼓室成形术中的应用方法以及对听力的改善作用。方法51例53耳胆脂瘤中耳炎和慢性化脓性中耳炎患者行开放式乳突根治术加I期鼓室成形术,分为两组:人工听骨组28耳,术中使用Spiggle&Theis钛质人工听骨进行听骨链重建(partial ossicular replacement prosthesis,PORP21耳,total ossicular replacement prosthesis,TORP 7耳);非人工听骨组25耳,未使用人工听骨单纯行鼓室成形IIIa型术式。随访1~3年,纯音测听检测两组患者术前、术后的气导听阈及气骨导差(air-bone-gap,ABG),进行统计学分析。结果钛质人工听骨组术前ABG(36.9±11.6)dB,术后(22.4±11.8)dB,平均缩小(13.44±8.8)d B,术前术后相比差异有显著性(t=4.6 1 9 3,P<0.01),无1例出现听骨脱出;非人工听骨组术前ABG(38.5±12.3)dB,术后(31.3±14.4)dB,平均缩小(7.28±8.7)dB,术前术后相比差异无显著性(P>0.05)。钛质人工听骨组听力提高水平明显优于非人工听骨组,差异有显著性(t=2.3015,P<0.05)。结论开放式乳突根治鼓室成形术中使用人工听骨进行听骨链重建,能够提高患者听力,钛质人工听骨组织相容性好,无排斥脱出发生,是较为理想的听力重建材料。  相似文献   

7.
目的探讨在开放式鼓室成形术中应用钛人工听骨的近期效果。方法回顾性分析2008年1月~2010年12月期间在开放式鼓室成形术中采用钛人工听骨进行听力重建的41例(41耳)患者的临床资料,其中采用部分听骨赝复物(PORP)31例,全部听骨赝复物(TORP)10例,比较手术前及手术后6个月0.5、1.0、2.0和4.0kHz气导平均听阈及气骨导差。结果 41耳术前0.5~4kHz平均气导听阈为56.32±6.53dB HL,术后为41.28±7.62dB HL,较术前降低15.04dB,差异有统计学意义(P<0.05);术前平均气骨导差(ABG)为30.01±6.11dB,术后为15.47±5.41dB,较术前缩小14.54dB,差异有统计学意义(P<0.05),其中34耳术后ABG小于20dB,听力重建总成功率达82.93%(34/41)。所有手术耳术后均干耳。结论钛人工听骨应用于开放式鼓室成形术听力重建效果好,是适合于鼓室成形术中应用的理想人工听骨。  相似文献   

8.
目的 探讨耳廓全层整片软骨结合外嵌技术在II、Ⅲ型鼓室成形术中的应用效果。方法 回顾性分析2016年1月~2018年12月在武汉大学人民医院耳鼻咽喉头颈外科以耳廓全层整片软骨为移植材料采用外嵌法(将整片软骨置于纤维鼓环外侧,并将部分软骨片嵌顿于鼓切迹)行Ⅱ、Ⅲ型鼓室成形术的160例(165耳)患者的临床资料,年龄18~65岁,平均33.5±9.2岁;其中鼓室硬化98耳,上鼓室胆脂瘤47耳,粘连性中耳炎20耳。术中采用部分听骨赝复物(PORP)重建听力105耳,采用全听骨赝复物(TORP)重建听力60耳,术后随访12~36个月。分析患者术前、术后纯音听阈,耳内镜图像及并发症,观察部分患者术后颞骨CT显示的鼓室含气腔情况。结果 PORP组术前0.5~4 kHz平均气导听阈51.34±10.46 dB HL,平均气骨导差32.88±5.25 dB,术后一年平均气导听阈及气骨导差分别为30.24±8.66 dB HL、13.60±6.18 dB,术后均较术前显著降低(P<0.01);TORP组术前平均气导听阈54.85±9.48 dB HL,平均气骨导差34.59±6.85 dB,术后一...  相似文献   

9.
目的比较自体骨及钛金属两种听力重建材料在开放式鼓室成形术后的听力改善状况。方法对2007年10月~2010年5月接受开放式鼓室成形术的21例(21耳)进行回顾性分析,根据听骨链重建材料分为自体骨组和金属钛组,听力统计以0.5,1,2,4 kHz的平均气骨导差值计算。结果自体骨组术后平均气骨导差和术前比较无明显统计学差异,金属钛组术后平均气骨导差较术前缩小(27.5±7.25)dB,两组比较差异有统计学意义。结论在开放式鼓室成形术中,使用金属钛重建听力链的听力改善较自体骨好。  相似文献   

10.
钛合金听骨Ⅰ期听骨链重建临床疗效分析   总被引:1,自引:0,他引:1  
目的 探讨钛合金听骨赝复物在鼓室成形术中Ⅰ期听力重建的效果.方法 回顾性分析676例2008年6月至2011年1月行开放式鼓室成形伴Ⅰ期听骨链重建术的病例,从中筛选具有完整中长期随访资料者106例(107耳),根据应用钛合金为全部听骨赝复物( total ossicular replacement prosthesis,TORP)或部分听骨赝复物(partial ossicular replacement prosthesis,PORP)将其分为PORP组(86耳)和TORP组(21耳),随访6至30个月,分别比较两组手术前后0.5、1、2、4 kHz纯音气导平均听阈、平均气骨导差的变化及术后听力重建成功率的情况.结果 PORP组术前气导平均听阈为(49.0±12.6)dBHL,术后为(31.3 ±7.1)dBHL,听力平均提高了17.7 dBHL.TORP组术前气导平均听阈为(48.5 ±4.8)dBHL,术后为(29.4 ±4.7)dBHL,听力平均提高了19.1 dBHL.PORP组术前平均气骨导差为(27.0±7.1)dB,术后为(14.5 ±4.6)dB,气骨导差闭合12.5 dB.TORP组术前平均气骨导差为(29.1 ±7.2)dB,术后为(16.3 ±4.2)dB,术后气骨导差闭合12.9 dB.两组听力重建的成功率分别为83.7%和71.4%.两组在听力提高、气骨导差闭合、听力重建成功率等方面差异均无统计学意义(P值均>0.05).总体听骨假体排出率为0.9%( 1/107).结论 应用钛合金听骨赝复物行鼓室成形术Ⅰ期听力重建,可有效提高听力,其排异率低.  相似文献   

11.
Objective To report tympanoplasty cases completed with Sheehy Partial Ossicular Replacement Prostheses (PORP). Methods Seventy eight (83 ears) of 89 cases who received Sheehy PORP for ossicular chain reconstructionwere reviewed. These cases were followed for more than 6 months (mean: 21.3 months). The pre-and post-operative average air conduction thresholds and Air-Bone Gap (ABG) at 0.5, 1 and 2 kHz were compared. Results All 83 ears showed uneventful healing at 1 month postoperatively. PORPs in 2 ears without cartilage reinforcement were found dislocated at 3 months. Preoperative hearing thresholds were from 35.75 to 68.5 dB HL (mean: 59.13±15.23 dB HL). Postoperative mean hearing threshold improved to 32.23±13.21 dB HL (P < 0.01). Mean air-bone gap (ABG) improved from 36.95±12.19 dB preoperatively to 21.71±12.05 dB after surgery (P < 0.01). In 68 ears (81.9%), postoperative ABGs were either ≤ 20 dB or improved by 15 dB or more compared to before surgery (defined as satisfactory). Conclusion PORP as a ossicular reconstruction material appears to provide satisfactory results. Attention should be paid to avoid of postoperative dislocation. Long-term outcomes remain to be assessed.  相似文献   

12.
目的:评估乳突切开术并一期行听骨链重建的临床疗效。方法:对2008-01~2011-06期间在我科住院行乳突切开术并一期钛人工听骨植入手术并且有完整随访资料的患者139例进行回顾分析,其中置入部分听骨赝复物(PORP)者91例,置入全听骨赝复物(TORP)者48例,随访时间为2~5年,纯音测听法(PTA)检测患者术前及术后听力,比较手术前后的气导听阈(0.5、1.0、2.0、4.0kHz四个频率气导之平均值)及气骨导差(ABG),分析钛人工听骨在同期听骨链重建术的听力重建效果。术后ABG≤20dB为听力提高有效。结果:PORP植入患者术前气导平均听阈为(53.97±11.32)dB,术后为(36.80土11.68)dB,平均降低(17.17±5.79)dB;术前ABG平均为(31.84±6.17)dB,术后为(15.13±7.22)dB,平均缩小(16.71±5.50)dB;TORP组患者术前气导平均听阈为(58.05±11.35)dB,术后为(44.53±13.15)dB,平均降低(13.52±7.81)dB;术前ABG平均为(35.67±5.73)dB,术后为(21.48±7.01)dB,平均缩小(14.18±7.53)dB;各组术前术后的差异均有统计学意义(P〈O.01)。PORP组术后ABG≤20dB者(术后听力提高有效)共68例,有效率为74.73%;TORP组术后ABG≤20dB者共26例,有效率为54.13%;总有效率为68.63%,两组之间的差异有统计学意义(P<0.05)。结论:乳突切开术并同期钛人工听骨植入取得了良好的听力效果,PORP比TORP的听力改善效果好。  相似文献   

13.
目的分析采用自体带骨膜的骨皮质片修复根治后缺损的耳道壁并同期作听骨重建的初步结果。方法手术病例23例,男11例,女12例,年龄19-72岁,均为开放式乳突根治手术后遗有巨大根治腔和感染流脓,术前平均气导为(63.43&#177;15.57)dB,平均气骨导差(43.04&#177;7.66)dB。耳后切口,按欲取骨片大小(直径约为2cm)切开骨膜并分离之,骨膜仍与骨片中央保持连接。用铣钻、摆锯及平凿凿下,修整后植入根治腔,修复缺损的外耳道、鼓窦壁。9例有镫骨存在,作臼柱自体听骨重建;10例仅存足板者,作枪柱自体听骨重建;4例因各种原因未同时处理听骨。统计分析采用U检验。结果23例全部获得乳突腔封闭.耳道呈现光滑的外观。4例CT复查见上鼓室和乳突腔再气化。术后平均气导为(51.78&#177;12.77)dBHL,3月后随访为(43.0&#177;16.40)dBHL。气骨导差(gap)为(33.08&#177;7.63)dB,与术前相比,P〈0.05;随访gap为(23.48&#177;8.71)dB,与术前相比,P〈0.01;与术后相比,P〈0.05,差异均有显著意义。11例随访gap〈20dB,1例随访gap〉20dB,但gap缩小〉30dB,此12例为成功,占52%。5例gap〈10dB,2例虽〉10dB,但差值〉30dB,这7例为显效,占33%。15例gap缩小15dB以上,为有效(71%)。4耳遗留穿孔。结论带骨膜骨片与髂骨填塞及人工材料相比较,能更快愈合且保留固有的乳突空腔,形成正常光滑的耳道,也有利于听力恢复。  相似文献   

14.

摘要:目的探究耳内镜下I型鼓室成形术在干湿耳状态下手术的疗效差异。方法前瞻性纳入2017年7月~2017年9月于上海交通大学医学院附属第九人民医院耳鼻咽喉头颈外科收治的慢性化脓性中耳炎静止期患者,术前由2名耳内镜医师和1名临床医师独立判断鼓膜及鼓室黏膜情况,将45例患者分为干耳组和湿耳组。其中干耳患者29例,湿耳患者16例。I型鼓室成形术后3个月时的鼓膜愈合率和听力改善率。结果术后3个月时干耳患者中26例(89.6%)的患者鼓膜完全愈合,湿耳患者中14例(87.5%)鼓膜完全愈合,两组气骨导差均明显下降,干耳组气骨导差由术前(23.5±7.3)dB HL下降至(8.6±6.2)dB HL,湿耳组气骨导差由术前(25.1±7.6)dB HL下降至(10.5±8.0)dB HL。两组在鼓膜愈合率和听力改善率上差异均无统计学意义(P>0.05)。结论对于不伴有听骨链病变的静止期慢性化脓性中耳炎,术前湿耳状态并非手术禁忌证,其术后鼓膜愈合率以及听力改善率与干耳手术一致,且可以降低患者术前等待时间,减少抗生素使用和并发症发生,但这一结论仍需多中心、前瞻性队列研究进一步证实。

  相似文献   

15.
The aim of this retrospective study was to evaluate the long-term hearing results of using costal cartilage prostheses in ossicular chain reconstruction procedures in subjects operated on for a middle ear cholesteatoma with an intact canal wall tympanoplasty. Thirty-six patients (four with bilateral disease) followed up for 10 years who underwent an ossiculoplasty with a cartilage prostheses between January 1987 and December 1989 constituted the population studied. All the subjects underwent a staged intact canal wall tympanoplasty with mastoidectomy. Ossiculoplasty with total or partial chondroprosthesis was performed during the second stage. The long-term outcome was evaluated in terms of hearing according to the guidelines of the Committee on Hearing and Equilibrium (1995), and in terms of complications (anatomical and functional). In 18 patients a partial cartilage ossicular replacement prosthesis (PORP) was used, while in 22 a total cartilage ossicular replacement prosthesis (TORP) was used. In the PORP group the mean preoperative air–bone gap (ABG) was 22.4 dB hearing level (HL); before the second stage the ABG was 37.9 dB HL, at 2 years it was 12.1 dB HL, at 5 years 15.3 dB HL and at 10 years 15.8 dB HL. In the TORP group the mean preoperative ABG was 31.6 dB HL; before the second stage the ABG was 41.1 dB HL, at 2 years it was 14.4 dB HL, at 5 years 17 dB HL and at 10 years 18.5 dB HL. In both groups the number of cases with a postoperative ABG of < 20 dB HL remained stable (P > 0.05) over time. The failure rate was 17.5%, but only in 5% of cases was a functional revision needed. No cases of extrusion of the prostheses were encountered. The use of a chondroprosthesis is associated with functional results similar to those obtained by other authors. The efficacy of the prostheses remains stable over time and is associated with a very low rate of complications and failures. In this series no extrusion occurred and in no case did an infectious disease develop after cartilage transplantation. Received: 7 August 2000 / Accepted: 2 November 2000  相似文献   

16.
CONCLUSION: We invented a new ossicular chain reconstruction by lever methods (OCRLM) in tympanoplasty type III with the canal wall down technique and investigated the postoperative hearing results of the 24 patients who had undergone this surgery. Postoperative air-bone gaps (ABGs) followed up for 2.1-3.2 years gave satisfactory improvement audiometrically compared with former reports. OBJECTIVE: To present newly devised methods applied from the viewpoint of mechanical dynamics for ossicular chain reconstruction in tympanoplasty. MATERIALS AND METHODS: A total of 24 cholesteatoma patients who underwent tympanoplasty with mastoidectomy using the canal wall down technique and ossicular chain reconstruction with OCRLM between May 2003 and April 2004 were investigated. The postoperative ABG of a four-frequency (0.5, 1, 2, and 4 kHz) average of OCRLM followed up for 2 years or more was assessed. RESULTS: Patients who underwent OCRLM showed good postoperative hearing results. Average postoperative ABGs of less than 10, 15, 20, 25, and 30 dB were 4.2, 37.5, 70.8, 91.6, and 100%, respectively. A gap of >30 dB was absent and the mean postoperative ABG was 17.2dB. The OCRLM method was satisfactory to improve hearing and effectively reduce the ABG postoperatively over the period of observation.  相似文献   

17.
目的 探讨虚拟耳镜在鼓室成形术中的临床评估作用.方法 应用虚拟耳镜观察耳病患者102例(204耳),72例(75耳)完成鼓室成形术和外耳道鼓室成形术,其中慢性中耳炎53例(55耳),先天性外耳道闭锁1 9例(20耳).结果 23耳慢性化脓性中耳炎胆脂瘤型,虚拟耳镜观察19耳听骨链破坏,手术证实23耳均有听骨腐蚀;32慢性化脓性中耳炎骨疡型,虚拟耳镜观察29耳听骨链不同程度破坏,手术证实23耳锤骨和砧骨侵蚀,11耳镫骨头或镫上结构缺失;20耳先天性外耳道闭锁,中耳畸形,术前提示18耳听骨畸形,2耳小鼓室无听骨链,手术证实17耳外耳道闭锁,听骨严重畸形,2耳镫骨缺失,1耳前庭窗闭锁.2耳术后突然听力下降,复查虚拟耳镜发现移植听骨与鼓膜脱离.虚拟耳镜与手术探查符合率,中耳炎为92%,先天性外耳道闭锁、中耳畸形为100%.结论 虚拟耳镜为鼓室成形术术前病变程度及术后疗效评估提供可靠的影像学依据.  相似文献   

18.
OBJECTIVE: The aim of this study is to analyze the clinical features and follow-up of a series of pediatric patients with chronic otitis media undergoing tymponaplasty surgery and to identify the effect of the factors on the course. METHODS: Forty-one children (mean age 15.1+/-2.62 years, range from 8 to 16 years) who had undergone tympanoplasty with or without ossicular reconstruction were evaluated. Age, gender, size and site of perforation, status of operated ear (dry/discharging), status of the contralateral ear, underlying cause of the perforations, surgical technique, preoperative and postoperative hearing levels, average postoperative follow-up time, and postoperative complications were recorded. RESULTS: Myringoplasty in 28 patients (68.3%), incus interposition in 7 patients (17.1%), partial ossicular replacement prostheses in 4 patients (9.7%) and total ossicular replacement prostheses in 2 patients (4.9%) were performed. In the 37 (90.2%) of patients, intact graft was determined during postoperative follow-up. Surgical success including intact graft and postoperative air-bone gap of less than 25 dB were obtained in 34 (82.9%) cases. CONCLUSIONS: The present study suggested that tympanoplasty was a quite successful method in the appropriate pediatric patients between the ages of 8 and 16 years. In the preoperative evaluation for surgery success, some factors, such as dry middle ear, healthy contralateral ear and concordant to postoperative care should be considered.  相似文献   

19.
《Acta oto-laryngologica》2012,132(10):1088-1094
Conclusions. In ossiculoplasty with intact stapes, using autologous incus, cortex bone chips and plastipore partial ossicular reconstruction prostheses, improvement in hearing was nearly equal. In patients who had mild risk scores, the incus had better gain values compared with patients who had severe scores. Objective. We aimed to prove the utility of the middle ear risk index score and its predictive value in hearing outcome. We also evaluated hearing results for different reconstruction materials. Patients and methods. This was a retrospective chart review of 189 patients who had ossiculoplasty with intact stapes using autologous incus, cortex bone chips and plastipore partial ossicular reconstruction prostheses. Hearing outcomes and the average improvement in hearing with different reconstruction materials were analysed by using middle ear risk index scores. Results. The average hearing improvements for incus, cortex and partial ossicular reconstruction prostheses were 12.77±14.58 (p<0.001), 12.34±15.98 (p=0.005) and 14.10±13.87 dB (p<0.001), respectively. The postoperative air–bone gap levels were 20.42±14.54 dB in incus, 17.33±16.86 dB in cortex and 17.59±11.66 dB in partial ossicular reconstruction prostheses. When the preoperative middle ear risk index scores and postoperative air–bone gap and gain values were compared, in the incus group, statistically significant associations were demonstrated between scores and hearing outcomes (p=0.009).  相似文献   

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