INTRODUCTION Clavicle fractures are very common, accounting for approximately 4% of all adult fractures. Segmental bipolar fractures involving the lateral and the medial ends of the clavicle are extremely rare, with only isolated cases reported in the literature. The injury mechanism is often unclear and the management of these fractures remains controversial. CASE PRESENTATION Here is to rep...

We report a case of fracture of femoral head occurring in the setting of underlying osteonecrosis following a low-energy trauma in a middle-aged male. Patient also has underlying pelvic pathology from a previous trauma. The possible mechanism of injury is discussed. Extensive literature search reveals that this is the first report of a fracture in an osteonecrotic femoral head.

We report a case of fatal haemorrhage following a low-energy fracture of the pubic ramus in an 85-year-old woman.

INTRODUCTION Osteoporosis represents one of the most frequent comorbidity among HIV patients. The current standard method for osteoporosis diagnosis is dual-energy X-ray absorptiometry. Calcaneal quantitative ultrasound can provide information about bone quality. The aims of this study are to compare these two methods and to evaluate their ability to screen for vertebral fracture. METHODS Thi...

The role that plastic-frictional energy dissipation in the fracture process zone plays in the workof-fracture method for measuring the fracture energy of concrete or other quasibrittle materials is analyzed, and a possible improvement of this method is proposed. It is shown that by measuring the unloading compliance at a sufficient number of states on the post-peak descending load-deflection cu...

Measurements of the mechanical properties of snow are essential for improving our understanding and the prediction of snow failure and hence avalanche release. We performed fracture mechanical experiments in which a crack was initiated by a saw in a weak snow layer underlying cohesive snow slab layers. Using particle tracking velocimetry (PTV), the displacement field of the slab was determined ...

background postoperative pain is a common complication that can lead to serious morbidities and delayed recovery. objectives the aim of this study was to investigate the effect of low-level laser therapy on acute pain after tibial fracture surgery. patients and methods in this randomized clinical trial, 54 patients who were candidate for tibial fracture surgery were allocated randomly to two gr...

BACKGROUND Recently a Fracture and Osteoporosis outpatient clinic (FO clinic) was set up at the University Medical Centre groningen (UMCG) with the aim to optimise case-finding of osteoporosis in older patients with a low-energy fracture. To provide a diagnostic setting before the start of our fo clinic, case-finding was carried out in patients who suffered an 'osteoporotic' fracture in the yea...