title: Failures with Plasti-Pore ossicular replacement prostheses.
abstract: Plasti-Pore ossicular prosthesis failures found in our series of 246 patients with regular follow-up are reported and analyzed. Extrusions as well as poor functional results (postoperative air-bone gap greater than 25 dB) of the prostheses with and without cartilage on top have been reviewed. The overall extrusion rate was 9.3%: a higher extrusion rate occurred with prostheses without cartilage (18.4%) than with cartilage (4.4%). Thirty-six patients among those with poor postoperative hearing improvement have undergone revision surgery: the main causes of failure were a short prosthesis, a fixed stapes or footplate, adhesions of the prosthesis to surrounding structures, and the displacement of the prosthesis.
mesh_terms: D003054:Cochlear Implants; D004429:Ear Ossicles / Q000601:surgery*; D004868:Equipment Failure; D006801:Humans; D011095:Polyethylenes; D011126:Polypropylenes; D011183:Postoperative Complications; D012086:Reoperation
chemical_list: C016674:Plastipore; D011095:Polyethylenes; D011126:Polypropylenes