a1 Department of Otorhinolaryngology, Head and Neck Surgery, University of Cologne, Germany
Objectives: After tympanoplasty using a total ossicular replacement prosthesis, many unsatisfactory hearing results are due to dislocation of the prosthesis.
Material and methods: We developed a cartilage guide for stabilising the total ossicular replacement prosthesis in the oval window niche. An oval-shaped piece of cartilage measuring 2.5 × 3.5 mm with a central hole was precisely punched out of a thin cartilage plate. The cartilage was placed in the oval niche, and its hole centred the prosthesis on the stapes footplate.
Results: Hearing results in 52 patients confirmed acoustically the effectiveness of this method of total ossicular replacement prosthesis stabilisation on the stapes footplate. Subsequent ‘second-look’ surgery revealed stable ingrowth of the cartilage ‘shoe’ into the oval niche.
Conclusion: Such a cartilage shoe might address one of the causes of unsatisfactory hearing following ossicular chain reconstruction with a total ossicular replacement prosthesis.
(Accepted March 03 2008)
(Online publication May 19 2008)
c1 Address for correspondence: Prof Karl-Bernd Huttenbrink, Professor and Chairman, Department of Otorhinolaryngology, Head and Neck Surgery, University of Cologne, Kerpener Strasse 62, 50924 Cologne, Germany. Fax: +49 221 478 4793 E-mail: [email protected]