Stapes Footplate
Stapes Footplate - Related Videos
07:35
The Microscopic Transcanal Approach in Stapes Surgery Revisited
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Cited by 2 •
2022
This article describes the microscopic transcanal technique for stapes surgery, providing step-by-step surgical instructions for familiarizing surgeons with this approach.
07:40
Dissection of the Auditory Bulla in Postnatal Mice: Isolation of the Middle Ear Bones and Histological Analysis
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Cited by 13 •
2017
We present a protocol to isolate the auditory bulla, capsule, and ossicles from postnatal mice for whole mount and histological analysis.
04:00
Subdural Implantation of a Soft Electrocorticography Array for Cortical Electrophysiology Recording in Minipigs
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2025
This video demonstrates the implantation of a soft electrocorticography array and the long-term cortical recordings in a minipig. It outlines the steps involved in surgically implanting the array over the minipig's auditory cortex and recording both baseline and sound stimulus-evoked neuronal action potentials.
11:13
Dissection of Adult Mouse Utricle and Adenovirus-mediated Supporting-cell Infection
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Cited by 18 •
2012
Mechanosensory hair cells are the receptor cells of the inner ear. The best-characterized in vitro model system of mature mammalian hair cells utilizes organ cultures of utricles from adult mice. We present the dissection of the adult mouse utricle, and we demonstrate adenovirus-mediated infection of supporting cells in cultured utricles.
07:25
Open Surgical Resection of Cerebral Arteriovenous Malformations
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2025
Source: Rennert, R. C., et al. Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations. J. Vis. Exp. (2017).This video demonstrates the open surgical resection of a cerebral arteriovenous malformation (AVM) in a human brain. The procedure involves creating a bone flap, accessing the subarachnoid space, identifying and occluding feeding arteries and draining veins, and carefully removing the AVM. Intraoperative angiography confirms complete resection,...
FAQs
Movement traveling through the malleus, incus, and stapes reaches the footplate as sound-driven motion. At the oval window, the footplate rocks rather than remaining rigid, transferring those movements into pressure changes in cochlear fluid. This transition from middle-ear vibration to inner-ear fluid motion initiates the signaling process required for hearing.
Mobility allows the footplate to respond to movements delivered by the ossicular chain and pass them into the cochlea. If this interface cannot move normally, the mechanical pathway is disrupted before cochlear signaling begins. Thus, footplate mobility links effective middle-ear transmission with the preservation of efficient auditory function.
Fixation or abnormal remodeling restricts the footplate’s normal movement at the oval window. Reduced motion limits the transfer of sound-related vibrations into cochlear fluid, creating a mechanical transmission problem. The resulting impairment is associated with conductive hearing loss, because the disturbance occurs in the pathway that conveys sound toward the inner ear.
Clinicians evaluate the stapes footplate when assessing middle-ear disease that may affect sound transmission at the oval-window interface. They consider whether the structure remains mobile or has become fixed or abnormally remodeled. This structural context helps connect changes in the ossicular pathway with conductive hearing loss and guides consideration of restorative treatment.
Stapedectomy and stapedotomy may be used when impaired stapes-footplate function contributes to hearing loss. In the provided clinical context, these procedures are intended to restore the functional transmission role of the affected structure. Their relevance lies in addressing a mechanical problem in the middle-ear to inner-ear pathway rather than the generation of auditory signals itself.
The footplate serves as a clinically important point where middle-ear motion must reach the inner ear. Disease that fixes or remodels it can interrupt this transfer and produce conductive hearing loss. Evaluating the structure therefore helps explain how an anatomical change in the middle ear can affect the initiation of cochlear auditory signaling.