In short-term outcomes ( 5 years or less , with follow-up of 0–5 years ) , the best implant of choice that has lowest risk of revision and dislocation after THA is DMTHA follow by BTHA .
Abstract Postoperative dislocation is a challenging complication after  total hip arthroplasty ( THA ) that affects patient outcome worldwide .
Instability is one of the main complications with rates exceeding 20 % in some series .
Currently , alternative acetabular components are available with dual mobility ( DMTHA ) bearing surfaces and larger femoral head size that may reduce the risk of dislocation , yet provide the functional benefit of st and ard single mobility ( STHA ) bearing surface THA .
However , whether STHA , big femoral head ( BTHA ) and DMTHA should be used is still controversial .
This systematic review and meta- analysis aim to compare postoperative dislocation and revision ( aseptic loosening and infection ) of BTHA , STHA and DMTHA in primary or revision THA .
These clinical outcomes consist of postoperative dislocation and revision ( aseptic loosening and infection ) .
Revision total hip arthroplasty in patients 80 years or older.
We evaluated all revisions performed from March 1996 to December 2008 and compared complications , mortality , and clinical outcomes between patients 80 years and older and patients younger than 80 years . Data were collected prospect ively . There were 325 revisions , 84 ( 25.8 % ) in patients 80 years and older and 241 in patients younger than 80 years ( 62 % revision for aseptic loosening in both groups ) . The mean follow-up was 4.3 years . The results , 80 years and older vs younger than 80 years , revealed the following : mortality , 5 % vs 0 % 3 months postoperatively ; medical complications in 23.8 % vs 6.2 % ; postoperative fractures , 9.5 % vs 2.5 % ; and improved Merle d'Aubigné scores from 9.6 to 13.0 vs 10.4 to 14.3 . Revision total hip arthroplasty in patients 80 years and older was associated with substantial clinical improvement and patient satisfaction . However , medical complications and 90-day mortality were higher , and postoperative fractures occurred more frequently
In short-term outcomes ( 5 years or less , with follow-up of 0–5 years ) , the best implant of choice that has lowest risk of revision and dislocation after THA is DMTHA follow by BTHA .
Abstract Postoperative dislocation is a challenging complication after  total hip arthroplasty ( THA ) that affects patient outcome worldwide .
Instability is one of the main complications with rates exceeding 20 % in some series .
Currently , alternative acetabular components are available with dual mobility ( DMTHA ) bearing surfaces and larger femoral head size that may reduce the risk of dislocation , yet provide the functional benefit of st and ard single mobility ( STHA ) bearing surface THA .
However , whether STHA , big femoral head ( BTHA ) and DMTHA should be used is still controversial .
This systematic review and meta- analysis aim to compare postoperative dislocation and revision ( aseptic loosening and infection ) of BTHA , STHA and DMTHA in primary or revision THA .
These clinical outcomes consist of postoperative dislocation and revision ( aseptic loosening and infection ) .