Author: Glossary
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Subastragalar dislocation
Separation of the calcaneum and the scaphoid from the talus.
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Primitive dislocation
A dislocation in which the bones remain as originally displaced.
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Old dislocation
A dislocation in which no reduction has been accomplished even after many days, weeks, or months.
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Metacarpophalangeal joint dislocation
The dislocation of the joint between the carpals and the phalanges, usually involving the index finger or small finger of the hand. The dislocation may be simple and respond to closed manipulation or be complex and require surgery.
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Incomplete dislocation
A slight displacement of opposing articular surfaces.
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Habitual dislocation
Recurrent joint dislocation resulting during normal motion. The patella and the hip are the most commonly affected joints.
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Divergent dislocation
A dislocation in which the ulna and radius are displaced separately. It also may involve the tibia and fibula.
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Consecutive dislocation
A dislocation in which the luxated bone has changed position since its first displacement.
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Congenital dislocation
A dislocation existing from or before birth.
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Compound dislocation
A dislocation in which the joint communicates with the external air.