An interventional study of Metal on metal hip arthroplasty operated on 2002 in Hip Arthroplasty, sponsored by University Hospital, Clermont-Ferrand. Completed at 1 site in France. Per ClinicalTrials.gov, last updated 2014-07-08.
Sponsored by University Hospital, Clermont-Ferrand · Not applicable, Interventional, and Treatment
The couple of friction metal-polyethylene is regarded as the couple of reference in spite of the osteolysis induced by the wear of the polyethylene which remains the independent factor of long-term failure. This is all the more true as the patients are young, thus justifying the recourse to alternate couples of friction. The Metasul® couple was introduced on the French market under its current form in 1995 (year of its marking EC). The use of a couple of friction metal-metal (MM) is justified because it would be likely to improve longevity of the total arthroplasties of the active subjects by the reduction in osteolysis related to the wear of polyethylene. Various studies highlight evolutions different according to the types of fixing acetabular; favourable results of the not cemented cups contrasting with unsealings and the evolutionary edgings of the Metasul® cups cemented of or the cups "of cemented Weber type".
Radiographies standards allow the follow-up of the total prostheses of hip but those underestimate the incidence and the extension of osteolyses perished-acetabular which are generally asymptomatic initially. The lack of international consensus on the definition of the parameters of interpretation of the radiological follow-up of the PTH makes difficult the comparison of the various results. The purpose of the study is to evaluate the presence of geodes acetabular and femoral with scan examination.
University Hospital, Clermont-Ferrand is the lead sponsor of 841 studies on the registry; 178 are open to participants now.
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The purpose of the study is to evaluate the presence of geodes acetabular and femoral with scan examination.
Realization of a scan nine years after the surgery of total hip arthroplasty
Time frame: after nine years
Clinical results preoperative Postel Merle d'Aubigné, Harris score preoperative and SF12 scores preoperative (before the hip surgery)
Time frame: after nine years
Cooperating X-ray assessments and scan
Time frame: after nine years
Realization of a X-ray and a scan then comparison of the results obtained
Time frame: after nine years
Concentrations of cobalt: chrome and nickel in blood
Time frame: after nine years
Rate of survival of the prosthesis
Time frame: after nine years
This study is completed, as verified in Jul 2014. You cannot join it, but the record below documents what was studied.
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University Hospital, Clermont-Ferrand