In the present paper, fracture mechanisms and corresponding stress distributions in aluminium cast alloy locally reinforced by SiC particles and Al2O3 whiskers under monotonic and cyclic load are investigated experimentally and numerically. The material is monotonically and cyclically deformed to failure at room temperature. The fracture origin and the fracture path are investigated on the frac...

OBJECTIVE A full understanding of an injury event and the mechanical forces involved should be important for predicting specific anatomical patterns of injury. Yet, information on the mechanism of injury is often overlooked as a predictor for specific anatomical injury in clinical decision-making. We measured the relationship between mechanism of injury and risk for cervical spine fracture. M...

Extensor mechanism injuries are unusual and require early operative intervention to optimally restore extensor mechanism continuity, strength, and function. Quadriceps tendon ruptures typically occur in patients older than 40 years and can be associated with degenerative tendon changes, obesity, systemic illnesses, and trauma. Patellar tendon ruptures are usually seen in younger patients as a r...

The authors present the case of a body-builder who sustained a spiral fracture of the humerus during arm wrestling (Indian wrestling). The cause of the fracture and the underlying mechanism are discussed and it is concluded that it appears appropriate to warn body-builders and weight-lifters against arm wrestling.

Osthole is a bioactive coumarin derivative and has been reported to be able to enhance bone formation and improve fracture healing. However, the molecular mechanism of Osthole in bone fracture healing has not been fully defined. In this study we determined if Osthole enhances bone fracture healing through activation of BMP2 signaling in mice. We performed unilateral open transverse tibial fract...

BACKGROUND Hip fracture has been associated with various risk factors, including osteoporosis, excessive alcohol consumption, physical inactivity, visual impairment, aging, sex, rural/urban inhabitation, race and climatic variations. Mechanisms of hip fractures in many parts of the world have been documented, and include road traffic accident (RTA), gunshot injury, fall from heights and many ot...

BACKGROUND Radial head fractures are commonly interpreted as isolated injuries, and it is assumed that the energy transferred during trauma has its influence on the risk on associated ipsilateral upper limb injuries. However, relationships between Mason classification, mechanism of injury, and associated injuries have been reported only once before in a relatively small population. The purpose ...

BACKGROUND The mechanical response of the spinal cord during burst fracture was seldom quantitatively addressed and only few studies look into the internal strain of the white and grey matters within the spinal cord during thoracolumbar burst fracture (TLBF). The aim of the study is to investigate the mechanical response of the spinal cord during TLBF and correlate the percent canal compromise ...

This study aims to evaluate the biomechanical mechanism of pelvic ring injury for the stability of pelvis using the finite element (FE) method. Complex pelvic fracture (i.e., anterior column with posterior hemitransverse lesion) combined with pelvic ramus fracture was used to evaluate the biomechanics stability of the pelvis. Three FE fracture models (i.e., Dynamic Anterior Plate-Screw System f...

Mallet fingers with an avulsion fracture of the distal phalanx or rupture of the terminal tendon of the extensor mechanism is known as a common injury, while mallet thumb is very rare. In this paper, the case of a 19-year-old woman with a sprained left thumb sustained while playing basketball is presented. Plain radiographs and computed tomography revealed an avulsion fracture involving more th...