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prospective cohort study of 143 DM versus 130 standard bearing implants at 4 years follow-up, Epinette established a statistically significant difference in dislocation rate favouring DM (0% versus 5.4%). In all cases the stem was the same, and the acetabular
Department of Surgery, Albany Health Campus, Albany, Australia
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Department of Surgery, Université de Montréal, Montréal, Québec, Canada
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Introduction The challenges of hip arthroplasty have evolved over the decades. There was a time when arguments flared between supporters and opponents of different fixation methods or bearing materials. More recently, in the era of
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Introduction In most instances, fractures of the femoral head are the consequence of a high-energy trauma with posterior dislocation of the femoral head. A concomitant fracture of the posterior wall of the acetabulum is frequent. These
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4.3% 2009 Guyen et al. 51 Retrospective 54 Mean 4 yrs 5.5% (2 IPD * ) * IPD: intra-prosthetic dislocation. Limitations of dual mobility systems With an additional bearing, dual mobility systems have raised
Region Västra Götaland, Sahlgrenska University Hospital, Department of Orthopaedics, Gothenburg, Sweden
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Department of Orthopaedic Surgery and Traumatology, Odense University Hospital, Odense, Denmark
Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
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Region Västra Götaland, Sahlgrenska University Hospital, Department of Orthopaedics, Gothenburg, Sweden
The Swedish Hip Arthroplasty Register, Gothenburg, Sweden
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true in the long-term remains to be seen. Femoral head size The main argument for using larger heads in THA is that they are expected to decrease dislocation rates. On the other hand, bearing wear, taper-trunnion corrosion and groin pain may
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decreased with CoC bearing surfaces. Hernigou et al 2 determined whether the first-time risks, as well as the cumulative long-term risk dislocations were different according to the couple of friction. They investigated patient factors that could affect
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E . Bearing surfaces in primary total hip arthroplasty . EFORT Open Reviews 2018 3 217 – 224 . ( https://doi.org/10.1302/2058-5241.3.180300 ) 51 De Martino I D’Apolito R Soranoglou VG Poultsides LA Sculco PK Sculco TP . Dislocation
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. 4 , 5 These are injuries that have occurred in sports such as soccer, gymnastics and running ( Fig. 1 ). 6 Fig. 1 Mechanism of indirect injury in fracture-dislocations of the Lisfranc joint [tarsometatarsal (TMT)] joint: longitudinal
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-hinge total knee arthroplasty (RH-TKA) dislocation (a). Intraoperative photograph showing the RH-TKA posterior dislocation with broken polyethylene bearing bush of the femoral component of the hinge (b). Change of polyethylene femoral bearing bush (c). X
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Introduction Dislocation after total hip arthroplasty (THA) is a difficult problem for the patient, the treating surgeon, and is associated with a considerable extra cost for the health care system. 1 The true prevalence of post
