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[Replacement of ear ossicles with titanium prostheses]
1Hals-Nasen-Ohrenklinik, Plastische Chirurgie im Kopf- und Halsbereich, Dominikus Krankenhaus Düsseldorf/Heerdt.
Laryngo- Rhino- Otologie
|June 1, 1996
Summary
Titanium middle ear implants demonstrate excellent biocompatibility and integration for ossicular chain reconstruction. Initial results show high success rates in hearing improvement with no adverse reactions.
Area of Science:
- Biomaterials Science
- Otolaryngology
- Medical Device Engineering
Context:
- Titanium is a well-established implant material.
- Advancements in material processing enable the creation of small implants for ossicular chain reconstruction.
- Ossicular chain reconstruction is crucial for restoring hearing function.
Purpose:
- To evaluate the efficacy and biocompatibility of titanium middle ear implants for ossicular chain reconstruction.
- To assess the surgical outcomes and audiological results of titanium prostheses.
- To determine the suitability of titanium as an implant material for middle ear prostheses.
Summary:
- 100 titanium middle ear implants (55 PORP, 45 TORP) were used for ossicular chain reconstruction between November 1994 and September 1995.
- Implants were available in five sizes, with shape adjustability to avoid intraoperative modifications.
- Follow-up at three and six months showed no adverse reactions or extrusions; 79% achieved a 0-20 dB residual air-bone gap.
Impact:
- Titanium middle ear implants exhibit good biocompatibility and integration with the ossicular chain.
- The implants offer excellent mechanical properties for sound conduction and surgical implantation.
- Initial findings suggest titanium is a suitable material for middle ear prostheses, pending long-term data.