In 1881, Reverdin described a closing wedge osteotomy of the first metatarsal head with the apex laterally that also included excision of the medial eminence (Fig. 11-1A). His purpose was to realign the abducted hallux and remove the prominent bump. The procedure effectively reduces an abnormal proximal articular set angle but does not directly address the intermetatarsal angle. Since the time ...

All Vertical turbines use a fixed pitch angle; the determination of angle is very influential on characteristics vertical wind turbine. In initial stages planning Savonius Darrieus turbine, an experiment was carried out to determine best angle, and 7 degrees. its development, many designs have changed from design, so it necessary carry field experiments get angle. The purpose this study recomme...

The most commonly used proximal femoral fracture measures for predicting femur neck and intratrochanteric fractures are femoral axis length (FAL), hip axis length (HAL) and the derived Q angle measure (neck-shaft angle). The listed measures only consider the relationship between the diaphysis and the femoral neck but not also between the femoral head and neck. These measures assume the femoral ...

The simulation of the turbulent and potentially separating flow around a rotating, twisted, and tapered airfoil is a challenging task for CFD simulations. This paper describes CFD simulations of the NREL Phase VI turbine that was experimentally characterized in the 24.4 m × 36.6 m NREL/NASA Ames wind tunnel. All computations in this article are performed on the experimental base configuration o...

Distal radius fractures are common fractures of the upper extremity, estimated to account for one-sixth of all fractures seen and treated in emergency rooms.1-3 These fractures are seen in a bimodal age distribution and usually result from a low-energy trauma. Displaced fractures involving the articular surface of the distal radius have the worst prognosis because of the potential for incongrui...

Patients with Legg-Calvé-Perthes disease (LCP) often exhibit relative overgrowth of the greater trochanter and shortening of the femoral neck. Biomechanically, this corresponds to a shorter lever arm and a decreased muscle tension which may result in a Trendelenburg gait and pelvic instability. This is a retrospective study of 31 patients (32 hips) with LCP disease and relative overgrowth of th...

Cerclage wires are regularly hired as fixation gear to resource reposition, enhance alignment and growth stability. In specific femoral shaft, subtrochanteric periprosthetic fractures gain from cerclage fixation. Also in supracondylar shaft fractures, extra cord cerclages proved be than only a reposition device accelerated the general power of osteosynthesis construct. This study tests for stab...

This study investigated the temperature field distribution of a freezing inclined shaft. Thus, three-dimensional physical simulation test system was developed, and consists six parts, which are box shaft model, loading system, external environment data acquisition system. From results mechanical property artificially frozen sand, in range 25°C to -20°C, heat capacity sand decreases first, then ...

The aim of our study was to investigate whether placing of the femoral component of a hip resurfacing in valgus protected against spontaneous fracture of the femoral neck. We performed a hip resurfacing in 20 pairs of embalmed femora. The femoral component was implanted at the natural neck-shaft angle in the left femur and with a 10 degrees valgus angle on the right. The bone mineral density of...

To design an automatic steering controller with high performance for autonomous vehicle, it is necessary to have a precise model of the lateral dynamics with respect to the steering command input. This paper presents an empirical modeling of the steering system for an autonomous vehicle. The steering system here is represented by three individual transfer function models: a steering wheel actua...