Clinical study for the use of torps and porps in ossicular chain recon struction

ABSTRACT

Plasti-pore ossicular replacement prosthesis are widely used now. This paper is presented to evaluate the results of 190 cases in whom either plasti-pore TORP or PORP had been used. Patients, were divided into groups depending on whether total or partial replacement prosthesis was used and also whether open or closed technique was done during surgery. Follow up carried out for a period of minimum of one year and a maximum of three years. Our results were evaluated both anatomically and functionally. Anatomically, the rate of extrusion of TORPs was 20%, while that for PORPs was 52.1%. PORPS were not applied when wide access was used, so the percentage of extrusion of PORPs in cases associated with cholesteatoma where posterior tympanotomy was done was 66.6%, this high rate of extrusion was attributed to the eustachian tube dysfunction which is usually prisentin in these cases. The rate of rejection of TORPs in wide access tympanoplasty was almost 0%, although functional results were not gratifying. For central perforations the rate of extrusion of both PORPs and TORPs was 50%, Hearing was improved only in 50% of the non-rejected cases. This paper is presented in order to evaluate the results of this widely used material in relation to the technique of surgery