Related Experiment Video
Updated: Jul 19, 2026

Development of a Novel Internal Fixation Model for Rat Radial Fractures: Fracture Healing Assessment and Dorsal Root Ganglion Isolation
Published on: March 13, 2026
[Fracture of the distal radius]
1Unfall-, Hand- und Wiederherstellungschirurgie, Chirurgische Klinik II, Dialonie-Krankenhaus Schwäbisch Hall. hsiebert@diaksha.de
Abstract:
Distal fracture of the radius is an injury to a complex joint that is comprised functionally of four partial joints and makes it possible for the hand to move in all directions. The injuries to bone and cartilage and to the stabilizing ligamentous structures and the surrounding soft tissue vary as functions of the impact responsible the mechanism of injury, and any previous illnesses. The objectives of treatment are restoration of pain-free, unrestricted and lasting function of the wrist and lower arm and avoidance of the typical complications. Stable fractures are treated by conservative means, while unstable fractures with fragmentation are realigned in a closed procedure and then stabilized by internal or external fixation. In the case of fractures in bones affected by osteoporosis it is usually not necessary to make good a metaphyseal defect when specially adapted fixed-angel plates are used. Complex intraarticular AO type C3 fractures with multiple fragments frequently require a two-step procedure with primary closed realignment, an external fixator spanning the joint, and subsequent extensive diagnostic examinations to ascertain any concomitant injuries and allow a decision on the definitive treatment that is most suitable for the type of injury present.
Related Concept Videos
Bones of the Upper Limb: Radius
The radius has a nail-shaped head, and a short...
Bones of the Upper Limb: Ulna
Fractures: Bone Repair
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...
Bones of the Upper Limb: Humerus
Flail Chest-I
Flail chest is a severe and potentially life-threatening condition characterized by the fracture of three or more adjacent ribs in multiple places. It is most commonly caused by direct impacts and trauma, such as motor vehicle accidents or injuries from a steering wheel impact. It can also occur due to falls in elderly individuals with osteoporosis, or assaults involving sharp objects.
Pathophysiology
The pathophysiology of flail chest is complex, involving fractures of...
Stress-Strain Diagram - Brittle Materials
