Do patients lose weight after total knee replacement?

Objective: Several studies show that patients undergoing total knee arthroplasty (TKA) tend to maintain or gain weight after the procedure, which would result in increased wear of the prosthesis and new surgical interventions in a smaller period of time in comparison with patients with adequate body mass index (BMI). The aim of this study was to investigate the effect of TKA surgery on these patients' BMI.

Methods: Initially the records were analyzed, chosen at random from 91 patients undergoing TKA during the period from August 2011 to July 2013.

Spontaneous dislocation of the polyethylene component following knee revision arthroplasty: case report.

Dislocation of the polyethylene component in knee arthroplasty is a rare complication. The main triggering factor is failure of the locking mechanism, which may result from technical errors of insertion, trauma or even implant failure. Here, a case of dislocation of the polyethylene component from the tibial base, nine years after revision arthroplasty, is reported.

Pseudoaneurysm of the medial inferior genicular artery after anterior cruciate ligament reconstruction.

We present a case of pseudoaneurysm formation of the medial inferior genicular artery after anterior cruciate ligament reconstruction. The patient presented with repeated knee hemarthrosis. He was diagnosed by means of magnetic resonance angiography and was treated by means of transluminal embolization.

PAIN FOLLOWING TOTAL KNEE ARTHROPLASTY - A SYSTEMATIC APPROACH.

Total knee arthroplasty (TKA) is known to be a successful procedure. The aging of the population and the growing demand for quality of life have greatly increased the indications for the procedure. Nonetheless, TKA presents some complications that still lack definitive resolution.

[Model of experimental nonalcoholic steatohepatitis from use of methionine and choline deficient diet].

Context: There are still many unknown aspects about nonalcoholic steatohepatitis, especially regarding its pathophysiology and pharmacological treatment. Thus, experimental models are important for a better understanding of this disease and the evaluation of the effects of drugs.

Objective: To develop a model of experimental nonalcoholic steatohepatitis from use of methionine and choline deficient diet.

Prevalence of the hemochromatosis gene mutation in patients with nonalcoholic steatohepatitis and correlation with degree of liver fibrosis.

Background: Nonalcoholic steatohepatitis is a chronic liver disease with a high prevalence in the general population and a potential to evolve into cirrhosis. It is speculated that iron overload could be associated with liver injury and unfavorable progress in affected patients.

Aims: To evaluate the prevalence of mutation of the hemochromatosis gene (HFE) in patients with nonalcoholic steatohepatitis and to correlate it with histological findings in liver specimens.