Kerrison Punch
Kerrison Punch - Related Videos
02:20
Generating an Excisional Skin Wound in a Mouse Model via Punch Biopsy
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This video demonstrates a punch biopsy procedure to create a precise wound in a mouse model. The excision exposes the subcutaneous layer of the skin, providing a suitable site for studying immune responses to localized pathogen infection.
04:37
Sampling Prostate Cancer Tissue for Biobanking: An MRI-guided Targeted Technique to Remove Biopsy Punches from Fresh Tumor Tissue
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This video demonstrates an MRI data-based technique to target specific tumor-containing regions in prostate tissue for sampling. The collected biopsy specimens can be either stored for biobanking purposes or used for subsequent downstream analysis.
07:39
Corneal and Limbal Alkali Injury Induction Using a Punch-Trephine Technique in a Mouse Model
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Cited by 7 •
2023
This protocol describes a method to induce an accurate and reproducible corneal and limbal alkali injury in a mouse model. The protocol is advantageous as it allows for an evenly distributed injury to the highly curved mouse cornea and limbus.
06:19
Skin Punch Biopsy Explant Culture for Derivation of Primary Human Fibroblasts
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Cited by 163 •
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The fibroblast explant culture protocol from human skin punch biopsies is a technically robust and simple way to derive skin cells within 4-8 weeks for banking of about 15-20 million cells at a low passage number.
02:02
Full-Endoscopic Interlaminar Approach for Decompression of Lateral Recess Stenosis
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Cited by 1 •
2023
Technical advances and increased experience in full-endoscopic spinal surgeries enable these procedures to be performed with minimal incision, muscle retraction, and bone removal.
FAQs
The footplate is positioned beneath the target area, while closing the spring-loaded handles brings the narrow jaws together to shear and capture a thin fragment. Repeating this action incrementally allows controlled removal rather than taking away a large piece at once. This coordinated movement supports precise decompression and access near delicate neural structures.
An angled shaft can help the surgeon position the biting jaws around a target when a straight approach is difficult. This geometry supports access within restricted operative spaces and may improve the working view while limiting unnecessary tissue disruption. Its value depends on matching the instrument design to the surgical location and the structures that must be protected.
Instrument selection and operative technique strongly influence the result. The surgeon must choose a suitable design and control the incremental biting motion while remaining aware of adjacent dura and neural tissue. Maintaining that control helps direct removal toward the intended bone or tough tissue and reduces the risk of unintended disruption during procedures requiring decompression or access.
The surgeon first positions the footplate beneath the intended fragment, then closes the handles so the jaws shear and capture that piece. The instrument is repositioned as needed, and the action is repeated incrementally to enlarge or refine the opening. Controlled repetition supports precise removal and helps preserve nearby dura and neural tissue.
In neuroscience, the instrument is used when a procedure requires removal of small portions of bone to create decompression or provide access to neural structures. Examples include laminectomy and craniotomy, as well as other operations involving confined spaces. Its incremental action can help tailor the bony opening to the operative requirement rather than removing more tissue than necessary.
Incremental removal can open or enlarge a surgical window while maintaining controlled boundaries, which may improve visualization of the operative area. The design can also help limit unnecessary tissue disruption in confined spaces. These benefits are not automatic: appropriate instrument selection and careful technique remain essential for protecting the dura and nearby neural tissue.