Achieving bone fixation during megaprosthesis revision presents a formidable challenge in view of the substantial loss. We report treatment failed distal femoral replacement an active 36-year-old male mechanic remotely treated for osteosarcoma. A custom stem and cone were manufactured to augment preserve stock within short segment remaining proximal femur. The patient returned regular function ...

INTRODUCTION In the United States, there are over 300,000 hip fractures annually, resulting in over $13 billion in medical costs (1). About 90% of these have been reported to be the consequence of falls (1). The remaining 10% are thought to be the result of fatigue of the bone tissue (spontaneous fracture). Repeated falls may increase fracture risk by affecting the integrity of the bone tissue;...

Osteoporotic fractures are now a social problem for incidence and costs. Fractures of the proximal humerus events are frequent and constantly increasing. It is estimated that they are 20% of all osteoporotic fractures. Bone densitometry in most cases underestimates the real humeral bone density.There is little information about osteoporotic changes in the proximal humerus and their association ...

The preferred method of assessing the risk of an osteoporosis related fracture is currently a measure of bone mineral density (BMD) by dual energy X-ray absorptiometry (DXA). However, other factors contribute to the overall risk of fracture, including anatomical geometry and the spatial distribution of bone. Finite element analysis can be performed in both two and three dimensions, and predicts...