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Ossicular chain reconstruction with plastipore prostheses.

M Sanna, M Magnani, R Gamoletti

The American Journal of Otology

|January 1, 1981

Summary

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Staged tympanoplasties using Plastipore prostheses show promising hearing outcomes. This study found a low extrusion rate, suggesting Plastipore is a well-tolerated material for ossicular chain reconstruction.

Area of Science:

Otolaryngology
Biomaterials Science
Surgical Innovation

Background:

Reconstructing the ossicular chain is crucial for hearing in staged tympanoplasties.
Previous synthetic materials for ossicular reconstruction yielded poor results.
Plastipore offers a well-tolerated, pre-formed option for middle ear prostheses.

Purpose of the Study:

To evaluate the efficacy of Plastipore prostheses in staged tympanoplasties.
To compare extrusion rates between direct prosthesis-graft contact and cartilage interposition.
To assess functional hearing outcomes following ossicular chain reconstruction.

Main Methods:

A retrospective review of 140 patients undergoing staged tympanoplasties with Plastipore prostheses (92 TORPs, 48 PORPs).

Related Experiment Videos

Patients were divided into two groups: direct prosthesis-graft contact versus cartilage interposition.

Hearing results (air-bone gap) and prosthesis extrusion rates were analyzed after a minimum of six months.

Main Results:

Functional hearing results showed an air-bone gap <15 dB in 57% and <25 dB in 82% of cases.
The overall extrusion rate was 3.57% (5 out of 140 cases).
No significant difference in extrusion rates was noted between the two groups.

Conclusions:

Staged tympanoplasties utilizing Plastipore prostheses achieve excellent hearing results.
The low extrusion rate suggests good biocompatibility and surgical technique.
Molded heterografts may contribute to the favorable outcomes observed in this study.