title: Recurrent atraumatic anterior hip dislocation: Treated by dual mobility system.
abstract: OBJECTIVE
  To highlight a case of recurrent atraumatic anterior hip dislocation management using a dual mobility prothesis.
  
  
  METHODS
  The stability of the patient's hip was assessed using X-ray and MRI scans. Upon the third spontaneous anterior dislocation it was decided with the patient's consent to undergo a total hip replacement. A piriformis sparing anterior approach was use with the insertion of a dual mobility bearing. This consisted of an uncemented porous titanium cup articulating with a 28 mm head in a 42 mm mobile polyethylene liner.
  
  
  RESULTS
  Mobilising pain free at 6 weeks post operation with no further dislocations at 6 months follow up.
  
  
  CONCLUSIONS
  Dual mobility hip replacements was used successfully in our patient with recurrent atraumatic anterior hip dislocation.
authors.affiliation: Department of Orthopaedics, Sir Charles Gairdner Hospital, Hospital Avenue, Nedlands 6009, Australia.
authors.forename: Jie X
authors.initials: JX
authors.lastname: Xu
authors.affiliation: Department of Orthopaedics, Sir Charles Gairdner Hospital, Hospital Avenue, Nedlands 6009, Australia.
authors.forename: Daniel
authors.initials: D
authors.lastname: Meyerkort
authors.affiliation: Department of Orthopaedics, Sir Charles Gairdner Hospital, Hospital Avenue, Nedlands 6009, Australia.
authors.forename: Riaz J
authors.initials: RJ
authors.lastname: Khan
keywords: Atraumatic anterior hip dislocation; Cerebellar ataxia; Osteoarthritis