Long‐Term Experience with Biocompatible Ossicular Implants

Emmett, John R.; Shea, John J.; Moretz, William H.

doi:10.1177/019459988609400614

Cited by 12 publications

(7 citation statements)

References 36 publications

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“…Thorough analysis of the results in this series demonstrated no significant effects on successful hearing results by age, presence or absence of cholesteatoma or whether a mastoidectomy was concurrently performed. As expected, 17,18 Belluci class 3 had less satisfactory results than classes 1 or 2. Hearing results overall appeared to remain stable over time with little of the decay that has been noted in some other series.…”

Section: Discussionsupporting

confidence: 78%

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Partial ossicular reconstruction in children: A review of 62 operations

et al. 1998

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These results compare favorably with those from other, mostly adult, studies. Comparison of prosthesis types revealed generally stable long-term results with few significant differences. Success with ossiculoplasty in children can be obtained by applying the same principles and approach to ossicular reconstruction as used in adults. Ossicular reconstruction in children remains a secondary goal after establishing a safe, dry, and stable ear. A discussion of techniques and comparative literature review are presented.

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Section: Discussionsupporting

confidence: 78%

“…Compared with other series and with our own previous series utilizing the same surgeons, prostheses, and techniques, the results for children were similar to adults (Table XII). 1–6,13,18–24 …”

Section: Discussionmentioning

confidence: 99%

Partial ossicular reconstruction in children: A review of 62 operations

et al. 1998

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“…Daniels et al, 15 Brown, 21 Shelton and Sheehy, 9 Kinney, 22 and Lau and Tos 17 noted that hearing results were better in CWU mastoidectomies. Management of the canal wall did not appear to influence the hearing results in the present study or in the results reported by Emmett et al 14 and Edelstein et al 6,12 …”

Section: Discussionsupporting

confidence: 56%

“…This finding is similar to those reported by Goldenberg, 23 Daniels et al, 15 and Brackmann et al 20 and slightly better than those reported by other authors. Prosthesis extrusion is reduced in studies with patients who have a cartilage interposed between the tympanic membrane, as noted by Emmett et al 14 and Colletti et al 24…”

Section: Discussionmentioning

confidence: 87%

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Hearing Results in Pediatric Patients With Chronic Otitis Media After Ossicular Reconstruction With Partial Ossicular Replacement Prostheses and Total Ossicular Replacement Prostheses

Murphy

2000

The Laryngoscope

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Children who underwent ossicular reconstruction with PORPs had slightly better postoperative hearing than did children with TORPs. Postoperative hearing was essentially unchanged in approximately 55% of both groups. Preoperative hearing levels may be the most important factor determining postoperative hearing in nonstaged surgery for children with chronic otitis media Long-term hearing results in children with single-stage surgery were not as good as those reported in the literature for staged surgery. Severe mucosal disease and eustachian tube dysfunction may contribute to poorer hearing results in children.

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Biomaterials for ossicular chain reconstruction. A review

Neumann

Jahnke

2003

Materialwissenschaft Werkst

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This review gives a survey of biomaterials used for ossicular chain reconstruction. The survey is focussed on application, biophysical requirements, properties and goals for future developments. The implantation site middle ear differs from others due to aeration and potential bacterial colonization. As a consequence, implant materials must exhibit excellent biocompatibility, biostabilty and sound conducting properties. In vitro and in vivo biocompatibility investigations and clinical observations determine the choice of material. Additionally the implants must provide the possibilty of intraoperative shaping or should be available in different variations in order to allow reconstruction appropriate to the individual conditions. Ceramics, metals and plastics are materials in current use. Based on thorough experimental and long term clinical experiences, the bioinert aluminum oxide is favorable amoung the ceramics. Bioactive ceramics may have minor biostability and the risk of fixation to surrounding bone which impairs sound conduction. This is also true for hydroxyapatite although biodegradation occurs only rarely. Today, titanium is the metal best established in middle ear implantation, reflected by excellent biocompatibility in vitro and in vivo, and good clinical results. Titanium is preferred by many surgeons, considering that sound transmission properties are mainly dependent on the implant weight. In stapes surgery, when the implant has direct contact to inner fluids, gold was accused to cause granuloma formation with subsequent inner ear damage in selected cases. In frequent past and present use, plastics (porous polyethylene and teflon) have proven to be of limited value in ossicular chain replacement because of high extrusion rates and the observation of material desintegration and bacterial colonization. In order to individually manage the pathological conditions in the middle ear, the implant design is of crucial importance. It is dependent on the ossicle to be replaced and the implant material. Future investigations have to minimize implant extrusions possibly by modifying and improving implant surfaces.

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Long‐Term Experience with Biocompatible Ossicular Implants

Cited by 12 publications

References 36 publications

Partial ossicular reconstruction in children: A review of 62 operations

Partial ossicular reconstruction in children: A review of 62 operations

Hearing Results in Pediatric Patients With Chronic Otitis Media After Ossicular Reconstruction With Partial Ossicular Replacement Prostheses and Total Ossicular Replacement Prostheses

Biomaterials for ossicular chain reconstruction. A review

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