AI Article Synopsis
- All perilunate fracture-dislocations involve a mix of ligament ruptures, bone avulsions, and various fractures.
- The two main ways these injuries occur are through direct impact or indirect mechanisms, with the latter often resulting from excessive wrist extension and arm rotation.
- Factors that influence the type of injury include a person's age, the direction and strength of the forces applied, and the wrist position at the moment of injury.
Article Abstract
All perilunate fracture-dislocations combine ligament ruptures, bone avulsions, and fractures in a variety of clinical forms. Two mechanisms of the injury may result in a carpal dislocation: direct and indirect. Most dorsal perilunate dislocations are the result of an indirect mechanism of injury, usually consisting of an extreme extension of the wrist joint, associated with variable degree ulnar deviation and radiocarpal or midcarpal supination. Many factors may explain the occurrence of one or another type of injury: age, differences in direction and magnitude of the deforming forces, and differences in position of the wrist joint at the time of impact.
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