BACKGROUND Chest CT is more sensitive than a chest X-ray (CXR) in diagnosing rib fractures; however, the clinical significance of these fractures remains unclear. OBJECTIVES The purpose of this study was to determine the added diagnostic use of chest CT performed after CXR in patients with either known or suspected rib fractures secondary to blunt trauma. METHODS Retrospective cohort study ...

BACKGROUND Rib fractures are the most common type of thoracic trauma and cause other complications. We explored the risk factors for pneumonia in patients with multiple rib fractures. MATERIALS AND METHODS Four hundred and eighteen patients who visited our hospital with multiple rib fractures between January 2002 and December 2008 were retrospectively reviewed. Chest X-rays and chest computed...

This study presents a triangle director dipole antenna with rectangular impedance balun (RIB). The proposed consists of triangular director, coplanar waveguide (CPW) to stripline (CPS) transition line, and the RIB. substitutes typical planar quasi-Yagi antenna. has modified generates circular polarization. Also, RIB match an between CPW-fed CPS line. It obtains ultra-wide frequency band 4020 MH...

The present study proposes a novel fatigue life prediction considering the temperature load, which may be neglected in traditional assessment of suspension bridge steel deck welds under dynamic vehicle load. Vehicle fatigue, pavement temperature, and gradient models are developed based on test data from weight-in-motion system, U-rib welds, environment temperature. U-rib-to-deck U-rib-to-U-rib ...

It is conventionally considered that because of their fiber orientations, the external intercostal muscles elevate the ribs, whereas the internal interosseous intercostals lower the ribs. The mechanical action of the intercostal muscles, however, has never been studied directly, and the electromyographic observations supporting this conventional thinking must be interpreted with caution. In the...

To improve understanding of structural coupling and deformation patterns throughout the loaded ribcage, the present study reports the force-displacement and kinematic responses under a highly-localized loading condition using three PMHS ribcages (ages 44, 61, and 63 years). The ribcages were quasi-statically loaded locally to a non-failure displacement (nominally 15% of the ribcage depth at the...

BACKGROUND: Hip Dysplasia is a frequent orthopedic disease that is characterized by early joint sublux- ation. The DARthroplasty technique is a two-part process that involves applying bone graft to increase the femoral head coverage with a low morbidity rate and the long term is known results. OBJECTIVES: This study was aimed to investigate the radiograph...

BACKGROUND Rib fracture is the most common thoracic injury. It is thought to be present in 10% of all traumatic injuries and in almost 40% of patients who sustained severe non-penetrating trauma. There are 12 pairs of ribs. This study reviews various methods of acquisition and reconstruction of radiographic images of traumatic rib fractures in order to determine the optimal views and to simplif...

Researchers have reported on the importance of the rib cage in maintaining mechanical stability in the thoracic spine and on the validity of a compressive follower preload. However, dynamic mechanical testing using both the rib cage and follower load has never been studied. An in vitro biomechanical study of human cadaveric thoracic specimens with rib cage intact in lateral bending, flexion/ext...