BACKGROUND Falls are one of the main causes of fractures in elderly people and after a recent fracture, the risk of another fall is increased, resulting in subsequent fracture. Therefore, risk factors for future falls should be determined. We prospectively investigated the relationship between depression and the incidence of falls in post-menopausal women after a low-energy fracture. METHODS ...

Vascular injuries in conjunction with low-energy geriatric hip fractures, although uncommon, can be life-threatening. Furthermore, vascular injuries are usually iatrogenic, related to malpositioning of percutaneous reduction aids, aberrant drilling, or poorly sized implants. The authors describe an older woman who had a low-energy pertrochanteric hip fracture. She was noted preoperatively to ha...

abstract: in this paper, the results of experimental and numerical simulation of low velocity impact process have been carried out to investigate energy absorption of composite sandwich panels with 3d woven fabrics of glass fibers and epoxy resin. for this purpose, diagrams of force-displacement of the quasi-static and quasi-dynamic impact tests were studied. for the finite element simulation, ...

PURPOSE As result of the current demographic changes, osteoporosis and osteoporotic fractures are becoming an increasing social and economic burden. In this experimental study, extracorporeal shock wave therapy (ESWT), was evaluated as a treatment option for the improvement of osteoporotic fracture healing. METHODS A well-established fracture model in the metaphyseal tibia in the osteoporotic...

In this paper a new method to determine the fracture properties and strain energy release rate for Carbon- Polyester composite has been introduced.  Fracture characteristics such as critical stress intensity factor and critical strain energy release rate for mode I, mode II and mixed mode loading were determined using Arcan type specimen. 130 layers of carbon fiber polyester woven composite wit...

OBJECTIVE Increasing evidence suggests long-term alendronate use may overly suppress bone metabolism, limiting repair of microdamage and creating risk for insufficiency fractures. The purpose of this study is to demonstrate an association between alendronate use and a specific pattern of low-energy femoral shaft fracture. DESIGN, SETTING, AND PATIENTS A retrospective review was performed of p...

An investigation into the mixed mode fracture of steel fiber reinforced concrete (SFRC)beams with one percent volume fraction of steel fiber is presented. A series of notched beams withdifferent notch depths and locations are tested under three-point bending. The test results for apparentfracture toughness, crack trajectories, and fracture energy are presented. The crack paths for SFRCand plain...

converting the organic wastes and losses into compost is an appropriate technique to stabilize organic materials. one of the limitative factors in transporting and storing the composts is their low specific mass which usually leads to increase costs in their processing. to overcome this limitation, several methods such as pelleting have been proposed especially for efficient processing of powde...

Background: Tibial plateau fractures, complex injuries, are observed following highand low-energy traumas. The main goals of the treatment are to restore the extremity alignment and articular surface, and to obtain the early knee motion and rehabilitate the patient. We aimed to evaluate the effect of trauma severity on clinical and radiological results in the treatment of tibial plateau fractur...

Ankylosing spondylitis (AS) is an inflammatory disease primarily affecting the spine. Osteoporosis can be a complication of AS and associated with low bone mineral density. As well, spinal fractures in the AS are usually unstable and may cause neurologic deficit at the mainly cervical region with low energy trauma. However, reports of lumbar compression fracture in AS are very rare. Thus, we re...