Hip dislocation
Updates to Article Attributes
Body
was changed:
Hip dislocation is a relatively rare entity and may be congenital or acquired.
Epidemiology
Hip dislocations account for ~5% of all dislocations 3.
Pathology
There are numerous patterns of dislocation 1:
- posterior hip dislocation (most common ~85%)
-
anterior hip dislocation (~10%)
- inferior (obturator) hip dislocation
(rare) - superior (pubic/iliac) hip dislocation (rare)
- inferior (obturator) hip dislocation
- central hip dislocation (protrusio) - always associated with acetabular fracture 2,3
Aetiology
Acquired
Acquired hip dislocation is normally associated with high-speed trauma, with motor vehicle collisions account half of the dislocation with other causes such as falls and sports injuries, less common 1.
Hip dislocation is the second most common complication of hip joint replacements and occurs in ~5% (range 0.5-10%) of patients with ~60% of dislocations being recurrent 5.
Congenital
Congenital hip dislocation is now considered part of the spectrum of developmental dysplasia of the hip (see the article for further information) 4.
Complications
- avascular necrosis: particularly if reduction postponed more than 24 hours
-<li>inferior (obturator) hip dislocation (rare)</li>-<li>superior (pubic/iliac) hip dislocation</li>- +<li>inferior (obturator) hip dislocation</li>
- +<li>superior (pubic/iliac) hip dislocation (rare)</li>
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