Results of Hearing Gain according to Ossicular Prosthesis Materials

Abstract

Objectives:

Compare the functional results and extrusion rates according to the type of ossciular prosthesis materials in POR and TOR cases.

Methods:

A retrospective analysis was performed. Sixty-two patients were involved in POR cases and 70 patients were involved in TOR cases. In POR cases, Plastipore was used in 21 cases, hydroxy-apatite in 20 cases, and titanium in 20 cases. In TOR cases, Plastipore was used in 20 cases, hydroxy-apatite in 25 cases and titanium in 25 cases. We reviewed postoperative air-bone gap (ABG; less than 20dB and more than 20dB) and extrusion rate for more than 1 year follow-up period.

Results:

In POR cases, extrusion rates (ER) were 14.3%, 15.0%, 5.0% in plastipore, HA, and titanium prothesis, respectively. ABG less than 20dB were 71.4%, 80.0%, 85% in platipore, HA, and titanium, respectively. In TOR cases, ER were 30.0%, 20.0%, 8.0% in plastipore, HA, and titanium prothesis. ABG less than 20dB were 25.0%, 28.0%, 32.0% in plastipore, HA, and titanium prothesis, respectively.

Conclusions:

There were no differences in hearing gain results and extrusion rates between Plastipore, HA, and titanium prosthesis in POR and TOR cases statistically. But clinically, better hearing gain and low-rate of extrusion were found in titanium prosthesis and this material is recommended in cases of ossicular surgery.