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J Orthop. 2014 Aug 27;12(Suppl 1):S62-4. doi: 10.1016/j.jor.2014.06.015. eCollection 2015 Oct.

Recurrent atraumatic anterior hip dislocation: Treated by dual mobility system.

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Department of Orthopaedics, Sir Charles Gairdner Hospital, Hospital Avenue, Nedlands 6009, Australia.



To highlight a case of recurrent atraumatic anterior hip dislocation management using a dual mobility prothesis.


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.


Mobilising pain free at 6 weeks post operation with no further dislocations at 6 months follow up.


Dual mobility hip replacements was used successfully in our patient with recurrent atraumatic anterior hip dislocation.


Atraumatic anterior hip dislocation; Cerebellar ataxia; Osteoarthritis

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