Objective. The evolution of new prosthetic and osteosynthesis devices has led to better outcomes therefore more frequent surgical indications. As a consequence, an increased incidence complications such as infections or aseptic loosening in orthopedic trauma surgery are being recorded general population. MicroDTTect is quick simple system that useful detect low grade bio-film related infections...

BACKGROUND Although constrained condylar knee (CCK) inserts are widely used for total knee arthroplasty (TKA), their long-term outcomes remain unclear. We sought to evaluate patients with at least 10 years' follow-up after CCK TKA to identify potential adverse events (osteolysis, loosening, constraint-mechanism failure), assess functional outcomes with special emphasis on range of motion, and d...

BACKGROUND Aseptic loosening of hip prosthesis as it occurs in clinical cases in human patients was attributed to wear particles of the implants, the response of the tissue dominated by macrophages and the production of inflammatory mediators and matrix degrading enzymes; however, the cascade of events initiating the process and their interaction regarding the time course is still open and disc...

INTRODUCTION We report a continuous prospective series of patients operated on for total hip prosthesis femoral component loosening involving a bone defect. Reconstruction was performed using a hydroxyapatite-coated locked modular stem. The study's objective was to assess medium term clinical and X-ray results obtained with this original concept. MATERIALS AND METHODS The patients included re...

Finite element analysis was performed using 3-dimensional models to examine the biomechanical characteristics of the femoral component in resurfacing hip arthroplasty. Stress concentration was observed in the cortical bone adjacent to the rim of the prosthesis. Stress shielding was observed in the anterosuperior regions on the cancellous bone cross-sections near the cup rim. These biomechanical...

Loosening of the prosthesis, an important cause of clinical failure following total joint replacement, may be due to faulty implantation of the prosthesis, to trauma, or to infection in the tissues adjacent to the implant. Cases of loosening exist, however, in which the technique of implantation appears to have been satisfactory, in which there is no history of injury and in which there is no e...

We report the case of a recurrent phosphaturic mesenchymal tumor (PHT) of the right acetabulum in a 47-year-old man with a long history of hip pain. After primary excision of the PHT, successful remission was expected due to normal phosphate levels. Over a long period, a recurrence led to destruction of the acetabulum and loosening of the back plate of the hip prosthesis. One-year follow-up aft...