[Ortho] Periprosthetic fx dislocation after THR

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I suppose this  one is a fully porous coated stem?AML ? solution stem.
If it's so then AL type # should be bothering since it's not 
compromising the stability of the stem . The cause of dislocation is 
probably multifactorial.
Decreased head to neck ratio due to the long head with a skirt probably 
causing impingement.
Old age with ?weak abductors.
One needs to checkout the alignment of the cup.
I would just reduce the hip at the moment under anaesthesia. check the 
range & stability.I would  give the pt. hinged brace for a period of 3 
mths or so.
For First time dislocators without any component malalignment ,closed 
reduction is successful in ~ 2/3 rd of the cases.
If this has  gross component malalignment then, I would 
rectify(surgically) that & change the head to large diameter.
regards,

dr. mohan desai,mumbai