Numerous experimental fracture healing studies are performed on rats, in which different experimental, mechanical parameters are applied, thereby prohibiting direct comparison between each other. Numerical fracture healing simulation models are able to predict courses of fracture healing and offer support for pre-planning animal experiments and for post-hoc comparison between outcomes of differ...

Determining whether a bone fracture is healed is one of the most important and fundamental clinical determinations made in orthopaedics. However, there are currently no standardized methods of assessing fracture union, which in turn has created significant disagreement among orthopaedic surgeons in both clinical and research settings. An extensive amount of research has been dedicated to findin...

Despite improvements in implants and surgical techniques, osteoporotic fractures remain challenging to treat. Among other major risk factors, decreased expression of morphogenetic proteins has been identified for impaired fracture healing in osteoporosis. Bone grafts or bone graft substitutes are often used for stabilizing the implant and for providing a scaffold for ingrowth of new bone. Both ...

The healing of fractures varies in pattern within wide limits, depending on several factors. Taking the degree of stabilisation as a parameter, it is usually found that the more rigid the fixation the less the periosteal reaction. This can be observed clinically in the healing of fractures fixed by stable osteosynthesis, in so far as radiologically visible callus seldom appears. If callus does ...

PURPOSE Transferring the bone morphogenetic protein 2 (BMP-2) genes into the tissues or cells can improve the bone healing of the fracture has been widely accepted. We evaluated the efficiency of using gene gun to transfer the BMP-2 gene thereby affected the healing of a fractured bone. METHODS The vector coding for BMP-2 was constructed by a non-replicating encephalo-myocarditis virus (ECMV)...

Wound and bone fracture healing are natural repair processes initiated by trauma. Over the last decade, many mathematical models have been established to investigate the healing processes in silico, in addition to ongoing experimental work. In recent days, the focus of the mathematical models has shifted from simulation of the healing process towards simulation of the impaired healing process a...

Angiogenesis is an important step in bone fracture healing. In this article, we report on the healing of long bone fractures, and the involvement of the vascular and the inflammatory systems in the process. We conducted a prospective study of 20 healthy adults with traumatic long bone fracture. One week after fracture, and then 1 month later, we evaluated markers of inflammation: vascular respo...

The aim of this study is to clarify the effect of low intensity pulsed ultrasound (LIPUS) on shortening of the fracture healing period and endochondral ossification during the fracture healing process. We first established a model of aging-related delayed union fractures consisting of aged mouse (C57BL/6J; 40 weeks old) with closed femur fractures. We compared the healing process of 40-week-old...