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[A study to narrow down the time when a hyoid bone fracture was sustained]
Marion Heyne1, Martin Obert, Christoph G Birngruber
1Aus dem Institut für Rechtsmedizin der Universität Giessen.
Archiv Fur Kriminologie
|December 3, 2010
Summary
Unstable hyoid bones found during autopsy may indicate neck trauma. While CT scans can distinguish fractures from incomplete ossification, they cannot determine if the injury occurred before or after death.
Area of Science:
- Forensic Pathology
- Medical Imaging
- Skeletal Biology
Context:
- Hyoid bone instability during autopsy can suggest neck trauma.
- Differentiating between developmental variations, ante-mortem, and post-mortem injuries is crucial for forensic investigations.
- Current methods may not definitively distinguish the timing of hyoid bone fractures.
Purpose:
- To evaluate the utility of stereomicroscopic examination and flat-panel CT scans in assessing isolated, unstable hyoid bones.
- To determine if these advanced techniques provide additional information beyond macroscopic examination for establishing the timing of hyoid bone instability.
Summary:
- Sixteen isolated hyoid bones were analyzed macroscopically, stereomicroscopically, and via flat-panel CT.
- Stereomicroscopy offered no advantage over macroscopic examination.
- Flat-panel CT successfully differentiated incomplete ossification from fractures but could not ascertain if fractures were peri-mortem or post-mortem.
Impact:
- Findings suggest that while CT aids in identifying hyoid bone fractures, it does not resolve the critical question of injury timing.
- This highlights limitations in current imaging techniques for definitively interpreting hyoid bone instability in forensic contexts.
- Further research is needed to develop methods for accurately dating hyoid bone fractures.
Related Concept Videos
01:12The Hyoid Bone
The hyoid bone is a small U-shaped bone located in the upper neck at the level of the inferior mandible, with its tips pointing posteriorly. It does not directly articulate with any other bone in the body. The hyoid acts as the attachment site for the tongue, the larynx, and the pharynx. It is held in position by a series of small muscles attached from above or below. These muscles help to move the hyoid up/down or forward/back in coordination with movements of the tongue, larynx, and pharynx...
01:27Fractures: Bone Repair
Treatment for a fracture is based on the type of break, the bone affected, and the patient's age.
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the procedure...
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the procedure...