Volumetric measurement of periprosthetic bone remodeling: prospective 5 years follow-up after cemented total hip arthroplasty.

Introduction: Periprosthetic bone remodeling after total hip arthroplasty (THA) is a well recognized phenomenon. Many authors have published osteodensitometric data with DEXA analysis. This study based on computerized tomography (CT).

Femoral strain changes after total hip arthroplasty--patient-specific finite element analyses 12 years after operation.

Periprosthetic stress-shielding after total hip arthroplasty (THA) is a well-known phenomenon. Many authors have used the finite element (FE) method to show the effects of THA on animal or human femora. In most cases they have performed cadaver experiments.

[MR-Imaging of lower leg muscle perfusion].

Purpose: This article describes the potential of dynamic contrast- enhanced magnetic resonance tomography (DCE-MRT) for the visualization and quantification of blood flow of lower leg muscles at rest and after individually adjusted muscular exercise.

Patients And Methods: Five cases were chosen to exemplify the qualitative and semi-quantitative blood flow evaluation in the lower leg muscles. The crural muscle state was determined with an isometric maximal strength measurement from a female patient with peripheral arterial occlusive disease (pAVK), a male patient with coronary heart disease (KHK) without clinical signs of a pAVK, a volunteer with sufficient physical activity in accordance with the Freiburg Questionnaire of Physical Activity and two professional athletes.

Kidney transplantation into an ileocecal reservoir after total extirpation of the urinary tract for panurothelial cancer: long-term followup.

We report on the long-term followup of a young woman after total extirpation of the urinary tract for panurothelial cancer with subsequent continent urinary diversion and renal transplantation. If a patient is willing to accept the associated risks, the staged procedure can be a highly satisfactory treatment option. Life-long close surveillance is critical for the success of this concept.

Validation data for periprosthetic bone remodelling theories.

Periprosthetic adaptive bone remodelling after total hip arthroplasty (THA) has been frequently simulated in computer models, combining bone remodelling theory with finite element analysis. Unfortunately, there still subsist a lack of clinical data, which are necessary for validation of these simulation results. Therefore, the objective of the current project is to collect prospective volumetric bone density data with a clinical computerized tomography study in seven patients after THA.