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 ) .
Midterm Survivorship of the Lefèvre Constrained Liner: A Consecutive Multisurgeon Series of 166 Cases.
BACKGROUND Constrained liners are used as part of a salvage procedure to provide stability for patients at high risk for dislocation after a total hip arthroplasty . However , no recent studies exist highlighting their effectiveness and /or limitations . METHOD This prospect i ve review included 166 consecutive hip arthroplasties , either primary ( 27 % ) or revision ( 73 % ) , with a unique design of a constrained liner : Lefèvre retentive cup . There were 113 females ( 69 % ) , and the average age at index surgery was 75.9 years ( range , 35 - 94 ) . The mean follow-up was 6.2 years ( range , 0.3 - 11 ) . RESULTS Twenty patients had a reoperation ; 10 for infection ( 4 acute and 6 chronic joint infection ) and 10 for cup failure ( 5 fixation failure , 3 aseptic loosening , and 2 dislocation ) . Ten-year survivals for cup revision were 89 % ( CI , 83 - 94 ) and 92 % ( CI , 89 - 97 ) for all revision and revision for noninfectious reasons , respectively . When solely evaluating for dislocation , the survival at 10 years was 99 % ( CI , 97 - 100 ) . Considering primary and revision cases , 10-year survivals cup revision for aseptic reasons were 92.4 % ( CI , 84 - 100 ) and 92.5 % ( CI , 87 - 98 ) , respectively . CONCLUSIONS The Lefèvre retentive cup demonstrated excellent 10-year 's survivorship . With the rate of aseptic loosening around 2 % and a dislocation rate around 1 % , the cup is as effective as other available devices and is therefore a cost-effective tool to reduce the risk of dislocation in at-risk patients undergoing hip arthroplasty
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 ) .