Hip dislocation

Dr Henry Knipe et al.

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
  • 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 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 article for further information) 4

Complications

avascular necrosis: particularly if reduction postponed more than 24 hours

Share article

Article Information

rID: 29197
Synonyms or Alternate Spellings:
  • Dislocation of the hip

Support Radiopaedia and see fewer ads

Cases and Figures

  • Drag
    Left hip joint di...
    Case 1: posterior dislocation
    Drag here to reorder.
  • Drag
    Typical picture o...
    Case 2: anterior dislocation
    Drag here to reorder.
  • Drag
    DDH dislocated hip
    Case 3: DDH with right hip dislocation
    Drag here to reorder.
  • Drag
    Case 4: posterior dislocation of THJR
    Drag here to reorder.
  • Drag
    Case 5
    Drag here to reorder.
  • Drag
    Case 6: posterior dislocation with lipohaemarthrosis
    Drag here to reorder.
  • Updating… Please wait.
    Loadinganimation

    Alert accept

    Error Unable to process the form. Check for errors and try again.

    Alert accept Thank you for updating your details.