title: Dual mobility total hip replacement in a high risk population.
abstract: OBJECTIVE
  The purpose of the study was to evaluate results of dual mobility total replacement in a high risk population who take hip into hyperflexed position while sitting and praying on the floor.
  
  
  METHODS
  The study included 65 (35 primary total replacement and 30 complex total hip replacement) cases of total hip replacement using avantage privilege dual mobility cup system from biomet. A cemented acetabular component and on femoral side a bimetric stem, either cemented or uncemented used depending on the canal type. Ten cases were examined fluoroscopically in follow up.
  
  
  RESULTS
  There was dislocation in one patient undergoing complex hip replacement. Fluoroscopy study showed no impingement between the neck of prosthesis and acetabular shell at extremes of all movements.
  
  
  CONCLUSIONS
  The prevalence of dislocation is low in our high risk population and we consider it preferred concept for patients undergoing complex total hip replacement.
authors.affiliation: Khoula Hospital, PO Box 90, PC 116, Mina Al Fahal, Oman.
authors.forename: Jatinder Singh
authors.initials: JS
authors.lastname: Luthra
authors.affiliation: Khoula Hospital, PO Box 90, PC 116, Mina Al Fahal, Oman.
authors.forename: Amur
authors.initials: A
authors.lastname: Al Riyami
authors.affiliation: Khoula Hospital, PO Box 90, PC 116, Mina Al Fahal, Oman.
authors.forename: Mohamad Kasim
authors.initials: MK
authors.lastname: Allami