Background: The measurement of the piston length during stapedotomy is important and it may have significant effects on the surgical outcome.Objective: To determine the piston length in a group of otosclerosis patient...Background: The measurement of the piston length during stapedotomy is important and it may have significant effects on the surgical outcome.Objective: To determine the piston length in a group of otosclerosis patients who underwent primary stapedotomy.Material and methods: Between Sep 2013 and Sep 2014, 85 patients with diagnosed otosclerosis underwent primary stapedotomy. Teflon prosthesis of 0.6 mm of diameter was used in all patients. The distance between medial surface of the long process of incus and center point of the stapedial footplate measured. The piston length calculated by adding 0.25 mm for the thickness of footplate and 0.50 mm for placement of the prosthesis into the vestibule.Results: The distance between stapedial foot plate and incus ranged from 3.50 to 4.50 mm. The mean distance was 3.95 ± 0.16 mm. In majority of cases(74.1%) piston length was 4.75 mm followed by 4.50 mm in 15.3% and 5.00 mm in 5.9%. Piston length was 4.25 mm in 3.5% and5.25 mm in only 1.2% of patients. There was no significant post-operative complication and air bone gap closure obtained in all patients.Conclusion: The most common distance between foot plate and incus is 4.00 mm. No case needed a piston longer than 5.25 mm or shorter than4.25 mm.展开更多
Objective:Stapes surgery is technically challenging,yet its methodology is not standardized.We aim to elucidate preferences in stapes surgery among American Otological Society(AOS)otologists and determine if any commo...Objective:Stapes surgery is technically challenging,yet its methodology is not standardized.We aim to elucidate preferences in stapes surgery among American Otological Society(AOS)otologists and determine if any common practice patterns exist.Study design:Cross-sectional study via emailed questionnaire.Setting:Surgery centers.Subjects and methods:Members of the AOS were an emailed a survey to quantify variables including surgical volume,anesthetic preference,laser use,type of procedure,footplate sealing technique,antibiotic use,and trainee participation.Results:Most otologists(71%)performed 2 to 5 stapes surgeries per month under general anesthesia(69%)with stapedotomy(71%)as the preferred procedure.Most(56%)used the rosette method of laser stapedotomy with manual pick debris removal for footplate fenestration.Either the handheld potassium titanyl phosphate(KTP)laser(40%)or handheld carbon dioxide(CO2)laser(33%)was used.The heat-activated memory hook(51%)was the preferred prosthesis.Footplate sealing method was variable,as was antibiotic use among respondents.Trainee participation was limited,as 42%of otologists allowed residents to place the prosthesis,and fewer allowed residents to crimp the prosthesis,and laser or drill the footplate.Surgeons with higher surgical volume(≥6 surgeries per month)demonstrated the following statistically significant correlations:footplate fenestration with laser in a rosette pattern and pick for debris removal(rs=-0.365,P=0.014)and trainee participation with fellows only(rs=0.341,P=0.022).Conclusions:Trends in various surgical decisions showed a lack of consensus in all aspects of stapes surgery.展开更多
BACKGROUND Stapedial tendon ossification is a rare disease,with only a few reports.The stapedial tendon originates from the apex of the pyramidal eminence and is attached to the neck of the stapes.In stapedial tendon ...BACKGROUND Stapedial tendon ossification is a rare disease,with only a few reports.The stapedial tendon originates from the apex of the pyramidal eminence and is attached to the neck of the stapes.In stapedial tendon ossification,the stapes is fixed,causing conductive hearing loss.In most cases,complete hearing restoration is achieved by dividing the stapedial tendon after exploratory tympanotomy.CASE SUMMARY A 28-year-old woman presented to our hospital with the major complaint of bilateral hearing loss that started during childhood.Exploratory tympanotomy was performed due to suspicion of otosclerosis or middle ear anomalies.We found bilateral conductive hearing loss due to stapedial tendon ossification with a middle ear anomaly during surgery.There have been several reports of complete recovery of hearing after resection of the stapedial tendon.However,in this case,recovery of hearing was insufficient,even with the division of the stapedial tendon.In the second surgery,the stapes anomaly and footplate fixation were confirmed,and hearing was completely recovered after stapedotomy.Therefore,we report this case with a review of the relevant literature.CONCLUSION This is the first case of stapedial tendon ossification and fixation of the footplate surgically diagnosed on both sides.With surgical treatment,successful results are expected.展开更多
目的总结内耳畸形相关性镫骨底板瘘(stapical footplate fistula related to inner ear malformation,SFF-Re-IEM)的CT和MRI表现特征。方法回顾性分析山东省第二人民医院2014年8月至2023年10月期间48例(53耳)SFF-Re-IEM患者的CT和MRI资...目的总结内耳畸形相关性镫骨底板瘘(stapical footplate fistula related to inner ear malformation,SFF-Re-IEM)的CT和MRI表现特征。方法回顾性分析山东省第二人民医院2014年8月至2023年10月期间48例(53耳)SFF-Re-IEM患者的CT和MRI资料,其中男35例、女13例,年龄1~55岁;53耳中有25耳经手术证实。记录患耳伴发内耳畸形的类型、内听道发育情况、镫骨底板及鼓岬完整性、鼓室内积液的密度、信号特征等。结果53耳SFF-Re-IEM中伴发内耳畸形不全分隔Ⅰ型17耳(32.1%,17/53)、共同腔畸形13耳(24.5%,13/53)、耳蜗未发育13耳(24.5%,13/53)、耳蜗发育不良7耳(13.2%,7/53)、Mondini畸形3耳(5.7%,3/53)。94.3%(50/53)患耳伴发内听道底部发育不良或缺损。根据镫骨底板骨质完整性及伴发脑脊液耳漏情况分为4类:镫骨底板骨质缺损、镫骨底板疝、镫骨底板漏和镫骨底板旁漏。镫骨底板漏22耳,其中2耳可能由镫骨底板骨质缺损发展而来,6耳由镫骨底板疝发展而来;镫骨底板旁漏1耳;孤立性镫骨底板疝30耳。2耳镫骨底板骨质缺损患耳缺损区在CT和MRI上不能显示。36耳镫骨底板疝在CT上表现为镫骨底板局部骨质缺损、缺损区见半球形软组织密度影,其在MRI水成像序列上呈脑脊液样信号影,外缘光整,鼓室内无积液信号。22耳镫骨底板漏中,患侧镫骨底板除在CT上显示局限性骨质缺损外,患侧鼓室内显示多少不一脑脊液样密度或信号影;17耳大量漏出患耳显示鼓室内高信号经缺损区与畸形内耳内高信号相连续,5耳少量脑脊液漏出患耳表现为患侧足弓间隙内囊状脑脊液信号影,与鼓室内少量积液不连续。1耳镫骨底板旁漏表现患侧镫骨底板骨质完整,其后下方鼓岬骨质局限性缺损,鼓室内脑脊液样信号通过缺损区与内耳内高信号相连续。结论SFF-Re-IEM因类型不同其影像学表现具有多样性,了解其影像学表现特征,有助于其诊断。展开更多
文摘Background: The measurement of the piston length during stapedotomy is important and it may have significant effects on the surgical outcome.Objective: To determine the piston length in a group of otosclerosis patients who underwent primary stapedotomy.Material and methods: Between Sep 2013 and Sep 2014, 85 patients with diagnosed otosclerosis underwent primary stapedotomy. Teflon prosthesis of 0.6 mm of diameter was used in all patients. The distance between medial surface of the long process of incus and center point of the stapedial footplate measured. The piston length calculated by adding 0.25 mm for the thickness of footplate and 0.50 mm for placement of the prosthesis into the vestibule.Results: The distance between stapedial foot plate and incus ranged from 3.50 to 4.50 mm. The mean distance was 3.95 ± 0.16 mm. In majority of cases(74.1%) piston length was 4.75 mm followed by 4.50 mm in 15.3% and 5.00 mm in 5.9%. Piston length was 4.25 mm in 3.5% and5.25 mm in only 1.2% of patients. There was no significant post-operative complication and air bone gap closure obtained in all patients.Conclusion: The most common distance between foot plate and incus is 4.00 mm. No case needed a piston longer than 5.25 mm or shorter than4.25 mm.
文摘Objective:Stapes surgery is technically challenging,yet its methodology is not standardized.We aim to elucidate preferences in stapes surgery among American Otological Society(AOS)otologists and determine if any common practice patterns exist.Study design:Cross-sectional study via emailed questionnaire.Setting:Surgery centers.Subjects and methods:Members of the AOS were an emailed a survey to quantify variables including surgical volume,anesthetic preference,laser use,type of procedure,footplate sealing technique,antibiotic use,and trainee participation.Results:Most otologists(71%)performed 2 to 5 stapes surgeries per month under general anesthesia(69%)with stapedotomy(71%)as the preferred procedure.Most(56%)used the rosette method of laser stapedotomy with manual pick debris removal for footplate fenestration.Either the handheld potassium titanyl phosphate(KTP)laser(40%)or handheld carbon dioxide(CO2)laser(33%)was used.The heat-activated memory hook(51%)was the preferred prosthesis.Footplate sealing method was variable,as was antibiotic use among respondents.Trainee participation was limited,as 42%of otologists allowed residents to place the prosthesis,and fewer allowed residents to crimp the prosthesis,and laser or drill the footplate.Surgeons with higher surgical volume(≥6 surgeries per month)demonstrated the following statistically significant correlations:footplate fenestration with laser in a rosette pattern and pick for debris removal(rs=-0.365,P=0.014)and trainee participation with fellows only(rs=0.341,P=0.022).Conclusions:Trends in various surgical decisions showed a lack of consensus in all aspects of stapes surgery.
文摘BACKGROUND Stapedial tendon ossification is a rare disease,with only a few reports.The stapedial tendon originates from the apex of the pyramidal eminence and is attached to the neck of the stapes.In stapedial tendon ossification,the stapes is fixed,causing conductive hearing loss.In most cases,complete hearing restoration is achieved by dividing the stapedial tendon after exploratory tympanotomy.CASE SUMMARY A 28-year-old woman presented to our hospital with the major complaint of bilateral hearing loss that started during childhood.Exploratory tympanotomy was performed due to suspicion of otosclerosis or middle ear anomalies.We found bilateral conductive hearing loss due to stapedial tendon ossification with a middle ear anomaly during surgery.There have been several reports of complete recovery of hearing after resection of the stapedial tendon.However,in this case,recovery of hearing was insufficient,even with the division of the stapedial tendon.In the second surgery,the stapes anomaly and footplate fixation were confirmed,and hearing was completely recovered after stapedotomy.Therefore,we report this case with a review of the relevant literature.CONCLUSION This is the first case of stapedial tendon ossification and fixation of the footplate surgically diagnosed on both sides.With surgical treatment,successful results are expected.
文摘目的总结内耳畸形相关性镫骨底板瘘(stapical footplate fistula related to inner ear malformation,SFF-Re-IEM)的CT和MRI表现特征。方法回顾性分析山东省第二人民医院2014年8月至2023年10月期间48例(53耳)SFF-Re-IEM患者的CT和MRI资料,其中男35例、女13例,年龄1~55岁;53耳中有25耳经手术证实。记录患耳伴发内耳畸形的类型、内听道发育情况、镫骨底板及鼓岬完整性、鼓室内积液的密度、信号特征等。结果53耳SFF-Re-IEM中伴发内耳畸形不全分隔Ⅰ型17耳(32.1%,17/53)、共同腔畸形13耳(24.5%,13/53)、耳蜗未发育13耳(24.5%,13/53)、耳蜗发育不良7耳(13.2%,7/53)、Mondini畸形3耳(5.7%,3/53)。94.3%(50/53)患耳伴发内听道底部发育不良或缺损。根据镫骨底板骨质完整性及伴发脑脊液耳漏情况分为4类:镫骨底板骨质缺损、镫骨底板疝、镫骨底板漏和镫骨底板旁漏。镫骨底板漏22耳,其中2耳可能由镫骨底板骨质缺损发展而来,6耳由镫骨底板疝发展而来;镫骨底板旁漏1耳;孤立性镫骨底板疝30耳。2耳镫骨底板骨质缺损患耳缺损区在CT和MRI上不能显示。36耳镫骨底板疝在CT上表现为镫骨底板局部骨质缺损、缺损区见半球形软组织密度影,其在MRI水成像序列上呈脑脊液样信号影,外缘光整,鼓室内无积液信号。22耳镫骨底板漏中,患侧镫骨底板除在CT上显示局限性骨质缺损外,患侧鼓室内显示多少不一脑脊液样密度或信号影;17耳大量漏出患耳显示鼓室内高信号经缺损区与畸形内耳内高信号相连续,5耳少量脑脊液漏出患耳表现为患侧足弓间隙内囊状脑脊液信号影,与鼓室内少量积液不连续。1耳镫骨底板旁漏表现患侧镫骨底板骨质完整,其后下方鼓岬骨质局限性缺损,鼓室内脑脊液样信号通过缺损区与内耳内高信号相连续。结论SFF-Re-IEM因类型不同其影像学表现具有多样性,了解其影像学表现特征,有助于其诊断。
