Cartilage homografts in the middle ear: a long-term histological study

Kerr, A. G.; Byrne, J. E. T.; Smyth, G. D. L.

doi:10.1017/s0022215100078166

Cited by 69 publications

(33 citation statements)

References 1 publication

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“…3,4,5,6 Inicialmente o uso da cartilagem com pericôndrio foi indicada em indivíduos com grandes perfurações, sem rebordos posteriores ou bolsas de retração atical. 1,2,8,9,10,11,14 . Os procedimentos realizados sem as incisões no meato acústico externo proporcionam uma enorme facilitação do processo total de cirurgia, não necessitando a remoção das grandes placas de timpanoscleroses, dimuindo o tempo cirúrgico, não necessitando de tamponamento do meato.…”

Section: Discussionunclassified

Cartilagem tragal com pericondrio em timpanoplastias

Testa

Teixeira

Ribeiro³

et al. 2002

Rev. Bras. Otorrinolaringol.

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Introdução: os enxertos de cartilagem começaram a ser usados por Jansen em 1963 que sugeriu que teriam sua indicação em casos mais avançados por ser mais rígido resistindo melhor à reabsorções e retrações. Em 1998 Eavey descreve o uso de cartilagem tragal com pericôndrio bilateral e a sua colocação sem incisões no meato acústico externo. Forma de estudo: clínico prospectivo randomizado. material e método: Foram estudados 100 pacientes portadores de seqüelas de otites médias crônicas, com perfurações da membrana timpânica com rebordo e submetidos a timpanoplastias com cartilagem tragal e pericôndrio. As dimensões das perfurações foram em média 40% da área da membrana timpânica. Na avaliação auditiva observamos média pré-operatória de perda condutiva de 28.3 dB e pós-operatória de 9.8 dB. Resultados: O fechamento da perfuração foi total em 95.0% dos casos. Conclusão: Estudando os resultados concluímos que o método é de fácil realização, com poucas complicações, bons resultados auditivos e ótimos resultados anatômicos. Sendo uma ótima opção para o otologista na resolução das seqüelas das otites crônicas.

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Section: Discussionunclassified

Cartilagem tragal com pericondrio em timpanoplastias

Testa

Teixeira

Ribeiro³

et al. 2002

Rev. Bras. Otorrinolaringol.

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“…But in case of advanced middle-ear pathologies, revision surgery, atelectasis, eustachian tube disorders and larger perforations, healing of TM has much poorer prognosis regardless of the surgical technique used. These results showed us that graft materials more rigid than temporalis muscle fascia and more resistant to resorption and retraction must be used in these cases [4][5][6][7]. Utech [8] used cartilage as a graft material in middle-ear surgery Wrst at 1959 for restoring ossicles.…”

Section: Introductionmentioning

confidence: 99%

Audiological and graft take results of cartilage reinforcement tympanoplasty (a new technique) versus fascia

Tek

Karaman

Uslu

et al. 2011

Eur Arch Otorhinolaryngol

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Our objective is to compare hearing and graft take results of temporal muscle fascia tympanoplasty and cartilage reinforcement tympanoplasty. Seventy seven patients are classified into two groups: Group 1 included 37 patients for whom cartilage graft, harvested from symba concha, is used as reinforcement under temporalis muscle fascia anteriorly and Group 2 included 40 patients for whom only temporalis muscle fascia is used in type 1 tympanoplasty. A pure-tone audiometry is done within 1 week prior to surgery and at 6 months postoperatively. There is statistically significant difference between postoperative graft take results among groups. In both groups postoperative anterior TM perforation is encountered most commonly. Success rate of cartilage reinforcement tympanoplasty in revision patients is 100% but temporal muscle fascia tympanoplasty's is 66%. There is no statistically significant difference between preoperative and postoperative air conduction gain of TM intact patients. The results indicated that Cartilage reinforcement myringoplasty technique under anterior of the temporal muscle fascia significantly increases the graft take ratios in high-risk perforations and it also does not affect hearing levels. Therefore, the authors suggest usage of cartilage reinforcement tympanoplasty technique under anterior of the temporal muscle fascia which is an easy and applicable technique to increase graft take ratios, particularly in patients with preoperative anterior and subtotal TM perforations.

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“…In cases such as large tympanic membrane perforation, atelectasis, and reperforation after myringoplasty, cartilage from both autograft and homograft sources has been used as grafting material to provide more tissue rigidity and resistance. Sources of cartilage include ear tragus, rib cartilage, and nasal septum [Shea and Glasscock, 1967;Kerr et al, 1973;Salen, 1988]. The advantages of cartilage over fascia are numerous.…”

Section: Introductionmentioning

confidence: 99%

Biomechanical Modeling and Design Optimization of Cartilage Myringoplasty Using Finite Element Analysis

Lee

Hsu²,

Chen³

et al. 2006

Audiol Neurotol

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The purpose of this study was to determine the acoustic transfer characteristics of cartilage for optimal cartilage myringoplasty. In order to do so, we developed a cartilage plate/tympanic membrane-coupled model using finite element analysis. Cartilage specimens of the tragus were obtained from fresh human cadavers, and the parameters of the tragus were determined by curve fitting and cross-calibration. A cartilage plate was used to repair an eardrum perforation, and the new coupled tympanic membrane-cartilage complex was loaded into our 3-dimensional biomechanical model of the middle ear for analysis. Our results show that first the β-damping value of the cartilage plate depends on frequency. The value of β damping was close to 3 × 10^–4 s at lower frequencies and 5 × 10^–6 s at higher frequencies. Secondly, reducing cartilage thickness leads to an improvement of its acoustic transfer qualities. From an acoustics point of view, the 0.1- to 0.2-mm cartilage plate seems to be most preferable with regard to tympanic membrane vibration. Furthermore, thicknesses of 0.2 mm at lower frequencies and 0.1 mm at higher frequencies were regarded as good compromises between sufficient mechanical stability and low acoustic transfer loss.

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Cartilage homografts in the middle ear: a long-term histological study

Cited by 69 publications

References 1 publication

Cartilagem tragal com pericondrio em timpanoplastias

Cartilagem tragal com pericondrio em timpanoplastias

Audiological and graft take results of cartilage reinforcement tympanoplasty (a new technique) versus fascia

Biomechanical Modeling and Design Optimization of Cartilage Myringoplasty Using Finite Element Analysis

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