Topic
Ossicles
About: Ossicles is a research topic. Over the lifetime, 1066 publications have been published within this topic receiving 15856 citations. The topic is also known as: auditory ossicle bone & ossicle.
Papers published on a yearly basis
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Papers
TL;DR: This report evaluates 8 years of experience with transcanal endoscopic management of limited attic cholesteatoma with microscopic postauricular tympanomastoidectomy and the endoscope, allowing for complete removal oflimited attic disease, possibly without interrupting the ossicular chain.
Abstract: Objectives: Microscopic postauricular tympanomastoidectomy provides a limited exposure to the attic, especially anteriorly. In contrast, the endoscope offers wide transcanal access to the attic, allowing for complete removal of limited attic disease, possibly without interrupting the ossicular chain. This report evaluates 8 years of experience with transcanal endoscopic management of limited attic cholesteatoma.
Study Design: Case series.
Methods: Seventy-three ears with limited attic cholesteatoma underwent endoscopic transcanal tympanotomy and extended atticotomy to access and completely remove the sac. Disease was dissected off the tegmen, the medial and lateral attic walls, and the ossicles. Appropriate ossicular reconstruction was performed. The defect was reconstructed with a composite tragal graft.
Results: A transcanal endoscopic approach was adequate for removal of disease in all cases. There were no iatrogenic facial nerve injuries. Bone thresholds were stable. Disease was dissected off the head of the malleus and the body of incus with preservation of both in 24 ears. Mean follow-up was 43 months. Five ears required revision for recurrent disease, and eight were revised for failed ossicular reconstruction or persistent perforation. Moderate to severe retraction in other areas of the tympanic membrane was evident in 28 cases; none of these required further intervention.
Conclusion: An endoscopic technique allows transca-nal, minimally invasive, eradication of limited attic cholesteatoma. Preservation of the ossicles coupled with complete removal of disease is more likely with the endoscope.
220 citations
TL;DR: The aim was to review, illustrate and discuss the imaging findings of some of the more frequent accessory ossicles and sesamoid bones of the ankle and foot region, with particular emphasis on those that may be of clinical significance or simulate fractures.
Abstract: Accessory ossicles and sesamoid bones are frequent findings in routine radiographs of the ankle and foot. They are commonly considered fortuitous and unrelated to the patient's complaint; however, they may eventually cause painful syndromes or degenerative changes in response to overuse and trauma. They may also suffer or simulate fractures. Our aim was to review, illustrate and discuss the imaging findings of some of the more frequent accessory ossicles and sesamoid bones of the ankle and foot region, with particular emphasis on those that may be of clinical significance or simulate fractures.
204 citations
TL;DR: The aim was to document a detailed investigation on the accessory ossicles and sesamoid bones of Turkish subjects in both the feet according to the sex, frequency and division of the bones, coexistence and bilaterality by radiography.
Abstract: Most accessory ossicles and sesamoid bones of the ankle and the foot remain asymptomatic; however, they have increasingly been examined in the radiology literature, because they can cause painful syndromes or degenerative changes in response to overuse and trauma. Our aim was to document a detailed investigation on the accessory ossicles and sesamoid bones of Turkish subjects in both the feet according to the sex, frequency and division of the bones, coexistence and bilaterality by radiography. A double-centered study was performed retrospectively to determine the incidence of the accessory ossicles and sesamoid bones in the ankle and foot. Accessory ossicles (21.2%) and sesamoid bones (9.6%) were detected by Radiographs of 984 subjects. The most common accessory ossicles were accessory navicular (11.7%), os peroneum (4.7%), os trigonum (2.3%), os supranaviculare (1.6%), os vesalianum (0.4%), os supratalare (0.2%), os intermetatarseum (0.2%). We observed bipartite hallux sesamoid in 2.7% of radiographs. Interphalangeal sesamoid bone of the hallux was seen in 2% of radiographs. Incidences of metatarsophalangeal sesamoid bones were found as 0.4% in the second digit, 0.2% third digit, 0.1% fourth digit and 4.3% fifth digit. We also identified the coexistencies of two different accessory ossicles as 6%, accessory ossicles and sesamoid bones as 7%, and bipartite sesamoid bones and sesamoid bones as 1.9%. Distribution of the most common accessory ossicles in male and female subjects was similar. We reported the incidence of accessory ossicles and sesamoid bones of the feet in Turkish adult population.
165 citations
TL;DR: The necessity for further research into the development of outer and middle ear structures is highlighted, which will be important for the understanding and treatment of conductive hearing loss.
Abstract: The mammalian ear is a complex structure divided into three main parts: the outer; middle; and inner ear. These parts are formed from all three germ layers and neural crest cells, which have to integrate successfully in order to form a fully functioning organ of hearing. Any defect in development of the outer and middle ear leads to conductive hearing loss, while defects in the inner ear can lead to sensorineural hearing loss. This review focuses on the development of the parts of the ear involved with sound transduction into the inner ear, and the parts largely ignored in the world of hearing research: the outer and middle ear. The published data on the embryonic origin, signalling, genetic control, development and timing of the mammalian middle and outer ear are reviewed here along with new data showing the Eustachian tube cartilage is of dual embryonic origin. The embryonic origin of some of these structures has only recently been uncovered (Science, 339, 2013, 1453; Development, 140, 2013, 4386), while the molecular mechanisms controlling the growth, structure and integration of many outer and middle ear components are hardly known. The genetic analysis of outer and middle ear development is rather limited, with a small number of genes often affecting either more than one part of the ear or having only very small effects on development. This review therefore highlights the necessity for further research into the development of outer and middle ear structures, which will be important for the understanding and treatment of conductive hearing loss.
164 citations
TL;DR: Vibration patterns of the eardrum and ossicles at the first resonance frequency, obtained under these assumptions, were in agreement with the experimental results obtained by means of time-averaged holography and by using a video measuring system, except for the relatively large displacements at the tympanic ring.
Abstract: Applying the general‐purpose finite‐element package program (ISAP), a three‐dimensional finite‐element method (FEM) model of a human right middle ear, which included ossicles, was made and the mechanical properties and boundary conditions of the middle ear were determined by a comparison between the numerical results obtained from the FEM analysis and the measurement results of the fresh cadavers, normal subjects and patients, which were obtained by our developed sweep frequency middle ear analyzer (MEA). The ‘‘Elastic’’ boundary condition consisting of linear and torsional springs at the eardrum attachments to the annular ligament was more appropriate for the actual condition than ‘‘fully clamped’’ one. Rotational axis of the ossicular chain was assumed to be a fixed straight line from the anterior process of the malleus to the short process of the incus, and a load of the ossicular chain and cochlea was simplified to be expressed by the stiffness of the cochlea. Vibration patterns of the eardrum and oss...
159 citations
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Performance Metrics
| Year | Papers |
|---|---|
| 2025 | 16 |
| 2024 | 54 |
| 2023 | 71 |
| 2022 | 95 |
| 2021 | 56 |
| 2020 | 37 |