Herbert-Schraube

Kahnbein-Pseudarthrose
und Versorgung mit Herbert-Schraube.
Wikipedia • CC BY-SA 3.0
Röntgenbild
einer Kahnbeinfraktur eines 20jährigen Patienten. Operative Versorgung mit einer Boldschraube.
Wikipedia • CC BY-SA 3.0
Röntgenbild
einer Kahnbeinfraktur eines 20jährigen Patienten. Operative versorgung mit einer Boldschraube.
Wikipedia • CC BY-SA 3.0
Biodegradable
magnesium Herbert screw – image quality and artifacts with radiography, CT and MRI. Mg-screw (top) and Ti-screw (bottom) in FPCT. The screw axis aligns to the z-axis of the scanner (0° position)
bmcmedimaging.biomedcentral.com • CC-by-4.0
Biodegradable
magnesium Herbert screw – image quality and artifacts with radiography, CT and MRI. Mg-screw (top) and Ti-screw (bottom) in MDCT in the 0° and 90° degree positions
bmcmedimaging.biomedcentral.com • CC-by-4.0
Biodegradable
magnesium Herbert screw – image quality and artifacts with radiography, CT and MRI. Mg-screw (top) and Ti-screw (bottom) in FPCT in the 0° and 90° degree positions
bmcmedimaging.biomedcentral.com • CC-by-4.0
Fraktur mit
schematisierter Herbert- Schraube - aus Bild:Scaphoidfraktur 1 pfeil.jpg auf commons erstellt
Wikipedia • CC BY-SA 3.0
Radiopaedia • CC-by-nc-sa 3.0 • de

A Herbert screw is an instrument used in the internal fixation of an unstable scaphoid fracture. It is a headless screw with the thread along its entire length. The two halves of the screw have a different pitch though, which causes compression of the fracture.

Indications

Unstable scaphoid fractures which include:

Disadvantages

  • ineffective in long standing non-united scaphoid fractures
Siehe auch:
Assoziationen und Differentialdiagnosen zu Herbert-Schraube: