The aim of the study was to examine the correlation between the chosen position of screws and the complications observed in patients who underwent locked plating of proximal humeral fractures. We evaluated radiographs of 367 patients treated by locked-plating for proximal humeral fractures. Radiographs were taken at one day, 6 weeks, 3 months and 6 months after surgery, and were analyzed for se...

(‘omplete dislocation of the acromio-clavicular joint is not a common injury. A review of the literature fails to disclose a carefully followed series numbering more than twenty-five identically treated cases. Treatment is indeed varied, and end-results uncertain. In the past four years we have been fortunate in encountering twenty-seven cases of complete acromio-clavicular dislocation (Fig. 1)...

This study extends research on entrepreneurial behavior by investigating the relationship between the marketing strategy innovativeness (MSI) and new product performance in technology-based new ventures in China. Specifically, premised on contingent resource-based view we argue that MSI is a firm capability that must be bundled with external managerial relationships and be deployed in the appro...

We show that existence of a non-coercive Lyapunov function is sufficient for uniform global asymptotic stability (UGAS) of infinite-dimensional systems with external disturbances provided an additional mild assumption is fulfilled. For UGAS infinite-dimensional systems with external disturbances we derive a novel ’integral’ construction of non-coercive Lipschitz continuous Lyapunov functions. F...

We examine the effect of external electric fields on the behavior of colloidal silica rods. We find that the electric fields can be used to induce para-nematic and para-smectic phases, and to reduce the number of defects in smectic phases. At high field strengths, a new crystal structure was observed that consisted of strings of rods ordered in a hexagonal pattern in which neighboring rods were...

In an inertial sensor-based pedestrian navigation system, the position is estimated by double integrating external acceleration. A new algorithm is proposed to reduce z axis position (height) error. When a foot is on the ground, a foot angle is estimated using accelerometer output. Using a foot angle, the inclination angle of a road is estimated. Using this road inclination angle, height differ...

ISP fixation has been shown to be a safe and efficacious alternative to traditional methods of posterior spinal fixation. A high degree of biomechanical stability and reliable fusion rates are achieved with preservation of adjacent level structures when using new iterations of rigid interspinous fixation. Since ISP devices do not violate adjacent facet joints, they potentially can decrease the ...

Per-trochanteric (4 Part) fractures of femur are commonest in elderly people. The incidence is expected to increase in the coming years, with an ageing population resulting in a greater number of traumatic injuries in patients with osteoporotic bone. DHS fixation is gold standard modality for treatment of such fractures. Various implants used for such fractures are 1) DHS Sliding compression sc...