نتایج جستجو برای: total ossicular replacement prosthesis
تعداد نتایج: 909117 فیلتر نتایج به سال:
Among the many existing hearing problems, there are those that need to be corrected through the replacement of the ossicles of the middle ear with a prosthesis. The type of the prosthesis used in the rehabilitation of the middle ear, total ossicular replacement prosthesis (TORP) or a partial ossicular replacement prosthesis (PORP) depends of the level of the ossicular impairment [1,2]. In the p...
INTRODUCTION Different types of titanium prostheses are used for different types of ossicular chain reconstruction (OCR). However, various ossicular chain problems require different types of reconstruction (incus or prosthesis). Recently, Vincent et al. published a new type of ossiculoplasty with a malleus replacement prosthesis (MRP). The details of this new prosthesis are described in their a...
OBJECTIVE Since 1993, titanium prostheses have been used in Europe as a biocompatible implant for ossicular reconstruction. More recently, the titanium ossicular prosthesis has become more widely available in the United States as a newer means of surgical restoration of hearing. We will review the hearing results of patients who have undergone tympano-ossiculoplasty using a titanium total ossic...
OBJECTIVES/HYPOTHESIS To prospectively evaluate surgical findings and hearing results in children undergoing surgery for congenital malformations of the ossicular chain with a mobile stapes footplate (Teunissen and Cremers class III malformations). STUDY DESIGN A nonrandomized, nonblinded, prospective case series. METHODS Fifteen consecutive pediatric patients who underwent 17 surgical proc...
OBJECTIVES The goal of this study was to make a review of the patients who underwent ossicular chain reconstruction with titanium prosthesis during an eight-year period in our Department. METHODS A retrospective study was made on the ossiculoplasty cases over a period of eight years in a Public Hospital District. The information was extracted by clinical process consultation. Between 1999 and...
Besides eradication of chronic middle ear disease, the reconstruction of the sound conduction apparatus is a major goal of modern ear microsurgery. The material of choice in cases of partial ossicular replacement prosthesis is the autogenous ossicle. In the event of more extensive destruction of the ossicular chain diverse alloplastic materials, e. g. metals, ceramics, plastics or composits are...
INTRODUCTION AND OBJECTIVE Many designs of prostheses are available for middle ear surgery. In this study we propose a design for a new prosthesis, which optimises mechanical performance in the human middle ear and improves some deficiencies in the prostheses currently available. Our objective was to design and assess the theoretical acoustic-mechanical behaviour of this new total ossicular rep...
Auditory effects of autologous fat graft for TORP stabilization in the middle ear: a cadaveric study
BACKGROUND Total ossicular replacement prostheses (TORP) are often used to re-establish ossicular coupling of sound in an ear lacking a stapes supra-structure. The use of TORPs, however, is associated with a 2/3 five year failure rate due to their anatomic instability over time in the middle ear. The use of autologous fat to try and stabilize TORPs may improve long-term results with this challe...
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