Nerve Fixator Positioning
Nerve Fixator Positioning - Related Videos
12:25
C-arm-Free Simultaneous OLIF51 and Percutaneous Pedicle Screw Fixation in a Single Lateral Position
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Cited by 5 •
2022
C-arm-free oblique lumbar interbody fusion at the L5-S1 level (OLIF51) and simultaneous pedicle screw fixation are performed in a lateral position under navigation guidance. This technique does not expose the surgeon or operating staff to radiation hazards.
08:53
Whole Animal Perfusion Fixation for Rodents
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Cited by 531 •
2012
Here we describe a low-cost, rapid, controlled and uniform fixation procedure using 4% paraformaldehyde perfused via the vascular system: through the heart of the rat to obtain the best possible preservation of the brain.
05:22
Iris Fixation via External Pentagram Suturing
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2022
The present protocol describes how a 10-0 polypropylene suture crosses the anterior surface of the iris, forming a pentagram to prevent both iris and pupil from moving toward the cornea. This can be combined with subsequent keratoplasty to cure bullous keratopathy with extensive anterior synechia of the iris.
01:03
Fixation and Sectioning
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2023
Two basic types of preparation are used to visualize specimens with a light microscope: wet mounts and fixed specimens. The simplest type of preparation is the wet mount, in which the specimen is placed in a drop of liquid on the slide. A liquid specimen can be directly deposited on the slide using a dropper. Solid specimens, such as skin scraping, can be placed on the slide before adding a drop of liquid to prepare the wet mount. Sometimes the liquid is simply water, but stains are often added...
06:57
Instillation and Fixation Methods Useful in Mouse Lung Cancer Research
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Cited by 48 •
2015
The goal of this paper is to describe simple methods that will greatly aid in the setup and analysis of mouse lungs with lung cancer or other pathologies. We present 3 protocols to simply and reliably carry out lung instillations, fixation, and lung volume measurements.
FAQs
Its main mechanical role is to limit unwanted movement without imposing excessive compression, bending, or traction on the nerve. This balance matters because stabilization alone is not sufficient if the device changes nerve geometry or strains the tissue. Appropriate fixation therefore supports controlled manipulation while helping preserve the nerve’s condition during exposure, repair, stimulation, or recording.
Orientation determines how consistently the nerve is held relative to the surrounding anatomy and the operator’s instruments. A stable anatomical reference helps reduce positional variation during manipulation or measurement, which is important when small changes can alter nerve geometry. Consistent orientation can therefore improve procedural control and make observations or electrophysiological recordings more reproducible.
Excessive compression, bending, traction, or unintended movement can undermine the purpose of fixation. These errors may change the nerve’s geometry or affect functional outcomes, even when the device appears secure. Positioning must therefore be evaluated as a balance between restraint and tissue preservation rather than as simple immobilization. The chosen orientation should support access without creating additional mechanical stress.
The selected approach and orientation determine where the device sits in relation to the target nerve and how the tissue is restrained. Because the nerve may be manipulated, stimulated, repaired, or measured, small positional differences can have practical consequences. Careful selection helps maintain a consistent anatomical reference while limiting unwanted bending, traction, compression, or movement during the procedure.
A supported workflow begins by identifying the target nerve and choosing an approach suited to the intended procedure. The operator then places the fixation device around or adjacent to the nerve, selects an orientation that limits unwanted motion, and secures the position while minimizing compression, bending, and traction. The result should provide stable access and a consistent reference for subsequent work.
Researchers may use the method when peripheral nerve exposure, microsurgical repair, stimulation, or electrophysiological recording requires controlled tissue positioning. In each setting, fixation can help the operator manipulate or measure the nerve with less unwanted movement. Its value is greatest when stable access and consistent geometry are important for carrying out the procedure or interpreting its functional outcomes.
Secure positioning reduces variation caused by movement or changing anatomical alignment during repeated manipulation or measurement. By preserving a consistent reference, it can make procedural conditions more comparable across observations. This is especially relevant to electrophysiological recording and stimulation, as well as microsurgical work, where small positional changes may influence nerve geometry or functional outcomes.