OBJECTIVES/HYPOTHESIS A piezoelectric sensor, floating piezoelectric microphone, driven by acoustic vibration of the ossicles, is one possible design for a microphone for a totally implantable cochlear implant. The purpose of the article was to study the frequency response of the floating piezoelectric microphone and to identify the ideal feasible position in the ossicular chain. STUDY DESIGN...

We have investigated the dependence of several anatomical parameters of the guinea-pig middle ear on body weight, and thus on age. In particular, the volumes of the tympanic and epitympanic cavities are found to increase with age, with the tympanic cavity growing somewhat more slowly. The mass of the incus appears to be independent of body weight. These results are important for establishing th...

<p><strong>Background: </strong>The aim of the study is to compare efficacy autologous incus versus allogenic titanium prosthesis in terms anatomical results, hearing gain after surgery, operative course and complications.</p><p><strong>Methods:</strong> This a prospective interventional 20 patients out which 10 underwent autologus ossiculoplasties perf...

INTRODUCTION Otosclerosis is a disease of bony labyrinth. Structural changes in the labyrinth often cause ossicular fixation, and thus conductive hearing loss. The purpose of this study was to evaluate middle ear exploration findings and frequency of ossicular and footplate area anomalies in patients with suspected otosclerosis referred to Amiralmomenin and Golsar Hospitals in Rasht, Iran. MA...

UNLABELLED Seven esophageal reconstructions with interposition colon in severe suicide corrosive ingestion and Boehave's injury at Thammasat University Hospital were presented. Vascular enhancement (as called "supercharge") were done. Only one patient had micro-leakage at pharyngeal anastomosis with healed by conservative treatment and no late anastomotic stricture. The operation need more time...

CASE REPORT This is the case of a 61-yr-old male who underwent a threestage oesophagectomy and substernal gastric interposition as surgical treatment for a tumour 3, node 0, metastasis 0 poorly differentiated squamous cell carcinoma of the middle oesophagus. Unusual posterior mediastinal anatomy (the thoracic aorta and thoracic duct were very deep, and the distance between the trachea and anter...

Surgery for the management of hallux rigidus aims to relieve pain and improve function. Arthrodesis, though reliable in terms of pain relief may encounter some resistance from patients reluctant to have a fusion. Results of other techniques, such as silastic implants, may give poor long-term results. Excisional arthroplasty and cheilectomy are also routinely used. Interposition arthroplasty has...

There is a thin bony pedicle joining the lenticular plate to the rest of the long process of the incus. We have previously presented a brief review of its anatomy; new histological observations in cat; and a simplified finite-element model of the long process, pedicle, lenticular plate, incudostapedial joint and stapes head in the cat. Low-frequency simulations suggested that there may be more ...