Related Experiment Video
Updated: Jun 5, 2026
09:07
An Anesthesia, Surgery, and Harvest Method for the Evaluation of Transpedicular Screws Using an In Vivo Porcine Lumbar Spine Model
Published on: May 31, 2017
Clinical experience with the screw extraction set for broken screw.
1Department of Plastic and Reconstructive Surgery, Faculty of Medicine, Showa University, Tokyo, Japan. nmitsu@air.linkclub.or.jp
The Journal of Craniofacial Surgery
|January 15, 2011
Summary
Broken screws in craniofacial surgery pose removal challenges. The Screw Extraction Set simplifies extracting fractured screws, particularly in difficult-to-access mandibular areas, aiding surgeons.
Area of Science:
- Oral and Maxillofacial Surgery
- Biomaterials Engineering
Background:
- Titanium plate systems are crucial for craniomaxillofacial bone fixation.
- Screw head deformation or breakage complicates screw removal during surgery.
Purpose of the Study:
- To evaluate the effectiveness of the Screw Extraction Set for removing fractured screws in craniomaxillofacial bones.
- To compare the Screw Extraction Set with previous methods for broken screw removal.
Main Methods:
- Utilized the Screw Extraction Set (Synthes Inc) for broken screw removal in craniomaxillofacial bone fractures.
- Assessed the ease of use and efficacy, particularly in challenging anatomical locations.
Main Results:
- The Screw Extraction Set demonstrated ease of use for removing broken screws.
- The system was particularly effective for screws in the mandibular angle and ramus.
- Previous methods involving angled extraction tips were found to be problematic with deformed screw heads.
Conclusions:
- The Screw Extraction Set is a valuable tool for craniofacial surgeons.
- Proper patient selection is recommended for optimal outcomes with this extraction system.
- The device simplifies the removal of difficult fractured screws in complex surgical sites.
More Related Videos
Related Concept Videos
01:16Self-Locking Screw
A square-threaded screw jack is a mechanical device widely used for lifting heavy loads or applying considerable force. One of the key features that can make a screw jack more effective and reliable is its self-locking capability.
A square-threaded screw jack carrying a load is considered self-locking if the screw retains its position even after the moment applied to it is removed.
A square-threaded screw jack carrying a load is considered self-locking if the screw retains its position even after the moment applied to it is removed.
01:17Frictional Forces on Screws
Screws are characterized by a helical ridge known as a thread wrapped around a cylindrical shaft. They are commonly used as fasteners to hold objects together or to transmit power and motion in machines. One type of screw that is particularly useful for transmitting power is the square-threaded screw.
A jack with a square-threaded screw is a mechanical device used to lift heavy loads by applying a force at its handle. When the force is applied, the screw turns, raising the load. The screw can...
A jack with a square-threaded screw is a mechanical device used to lift heavy loads by applying a force at its handle. When the force is applied, the screw turns, raising the load. The screw can...
01:21Screw: Problem Solving
In mechanical engineering, the interaction between a threaded screw shaft and a plate gear involves analyzing the resisting torque on the plate gear that can be overpowered when a specific torsional moment is applied to the shaft. To better comprehend this concept, consider a generic situation with a threaded screw shaft with a given mean radius and lead and a plate gear with a specified mean radius. The coefficient of static friction between the screw and gear is also provided.
To evaluate the...
To evaluate the...