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The Hip Joint
Copyright © Nucleus Medical Media, Inc.
Definition
A hip dislocation occurs when the ball of the thighbone moves out of place within the socket of the pelvic bone. This ball and socket form the hip joint.
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Causes
Hip dislocations are relatively rare and severe injuries. They are often associated with pelvic fractures. A normal hip joint is stable and strong. A hip dislocation can only occur when a strong force is applied to the hip joint, such as:
- Severe falls, especially from heights
- Motor vehicle accidents
- Sports injuries, especially from football, rugby, skiing, and snowboarding
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Risk Factors
Factors that can increase your chance of developing this condition include:
- Prior hip replacement surgery
- Abnormal hip joint
- High risk behaviors, such as excessive alcohol use
- Poor muscle control or weakness leading to falls