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Younger hip patients often need revision of their hip replacement due to wear and loosening. Newer concepts (resurfacing and large head total hip replacement) with articulation surfaces in metal may reduce the wear, increase the longevity of the implant and give an improved function. The possible downside is that these concepts releases metal debris to the body. The investigators wish to see if the newer interventions are a clinical improvement compared to standard. The investigators also wish to investigate the extent of metal released to the body and any effect on the immune system. Finally the investigators wish to investigate the stability of these new implants and their ability to preserve the bone around the implant.
The investigators hypothesis is:
That the metal on metal articulations will not have better clinical outcomes than standard The resurfacing implant is expected to preserve the bone of the upper femoral bone. The implants are expected to be stabile within the first year.
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
articular surface replacement ASR, DePuy, ReCap/Magnum modular head, Biomet, Bimetric stem, mallory/head cup, 28 mm ceramic head, Biomet, 28 mm CrCo head, Trilogy CH cup, VerSys Fiber stem,Zimmer)
Naestved Hospital Dept. of orthop. surg.
Active, not recruiting
University of Southern Denmark
Published on BioPortfolio: 2014-08-27T03:14:05-0400
This observational study intends to collect efficacy and safety data on ReCap/Magnum in Total Hip Replacement and Resurfacing.
The purpose of this study is to monitor the performance of a large metal-on-metal bearing from the DePuy ASR™ System in the treatment of patients with hip joint disease requiring hip res...
The purpose of this study is to compare two total hip replacement systems: Hip Resurfacing System (ReCap) versus Mallory-Head/Exeter.
The purpose of this study is to monitor the performance of the DePuy PROXIMA™ hip in the treatment of patients with hip joint disease requiring a total hip replacement. Patients who ente...
The purpose of this prospective clinical data collection is to document the performance and clinical outcomes of the M2a-Magnum™ Hip System
The large-diameter metal-on-metal hip prostheses were expected to have low wear and reduced dislocation rate compared to the traditional metal-on-polyethylene implants. We compare 2 such prostheses, t...
The purpose of this study was to compare blood leukocyte profiles and metal ion concentrations between hip resurfacing arthroplasty (articular surface replacement) patients with and without revision. ...
The purposes of this study were to investigate the long-term outcomes of radial head replacement and to analyze the relationship between functional outcomes and periprosthetic radiolucency.
The articular surface replacement (ASR) monoblock metal-on-metal acetabular component was recalled due to a higher than expected early failure rate. We evaluated the survivorship of the device and var...
There are four distinguishable types of THA devices in wide use, as defined by the femoral and acetabular bearing surfaces: metal-on-polyethylene (MoP), ceramic-on-polyethylene (CoP), metal-on-metal (...
The hemispheric articular surface at the upper extremity of the thigh bone. (Stedman, 26th ed)
Measurements of joint flexibility (RANGE OF MOTION, ARTICULAR), usually by employing an angle-measuring device (arthrometer). Arthrometry is used to measure ligamentous laxity and stability. It is often used to evaluate the outcome of ANTERIOR CRUCIATE LIGAMENT replacement surgery.
The joint that is formed by the inferior articular and malleolar articular surfaces of the TIBIA; the malleolar articular surface of the FIBULA; and the medial malleolar, lateral malleolar, and superior surfaces of the TALUS.
Fractures of the articular surface of a bone.
The articulation between the articular surface of the PATELLA and the patellar surface of the FEMUR.
An antibody is a protein produced by the body's immune system when it detects harmful substances, called antigens. Examples of antigens include microorganisms (such as bacteria, fungi, parasites, and viruses) and chemicals. Antibodies may be produc...
Osteoporosis is a disease in which the bones become extremely porous, are subject to fracture, and heal slowly, occurring especially in women following menopause and often leading to curvature of the spine from vertebral collapse. Follow and track&n...
Arthritis is by definition the inflammation of one or more joints, characterized by swelling, pain, warmth, redness and diminished range of joint movement (Oxford Medical Dictionary). There are many different types; Noninflammatory; Osteoarthritis, N...