Thin compressive layers within a laminar ceramic arrest large cracks (surface and internal) and produce a threshold strength. This phenomenon increases the damage tolerance of ceramics and will allow engineers to design reliable ceramic components for structural applications. The stress intensity factor derived for a crack sandwiched between two compressive layers suggests that the threshold st...

Compressive sensing enables the reconstruction of high-resolution signals from under-sampled data. While compressive methods simplify data acquisition, they require the solution of difficult recovery problems to make use of the resulting measurements. This article presents a new sensing framework that combines the advantages of both conventional and compressive sensing. Using the proposed STOne...

The cervical spinal cord is at a great risk for injury during traumatic accidents occurring within people of relatively young age. Spinal cord injury can not be easily characterized clinically nor through in vitro testing. An understanding of cervical spinal cord deformation is important for defining an injury threshold of the spinal cord. Therefore, an analytical method may be beneficial for d...

STUDY DESIGN A retrospective clinical study. OBJECTIVE To evaluate the efficacy and safety of transforaminal decompression and interbody fusion in the treatment of thoracolumbar fracture and dislocation with spinal cord injury. METHODS Twenty-six spinal cord injured patients with thoracolumbar fracture and dislocation were treated by transforaminal decompression and interbody fusion. The op...

CONTEXT Golf is a popular sport, particularly in older populations. Regardless of age and skill level, golfers risk injury to the back, shoulder, wrist and hand, elbow, and knee. Because of the unique compressive, shear, rotational, and lateral bending forces created in the lumbar region during the golf swing, the primary sport-related malady experienced by amateurs and professionals is low bac...

BACKGROUND This paper describes a case of C7 radiculopathy in a professional rugby league player after repeated cervical spine trauma. The report outlines the management of the patient following an acute cervical hyperflexion injury with chiropractic manipulation and soft tissue therapies. It also presents a change in approach to include distractive techniques on presentation of a neurological ...

Local Tissue Injury In bite wounds, shearing, tensile, and compressive forces often combine to damage tissues. Little energy is transmitted to the wounded tissues in a simple shearing injury, and tissue devitalization is often minimal. Tensile forces result in avulsion of the skin from underlying tissue. Avulsion of muscles can also occur in the deeper tissue layers, resulting in hernias and mu...

BACKGROUND To evaluate the safety and effectiveness of pedicle screw fixation for treatment of thoracolumbar fracture via Wiltse paraspinal approach. METHODS From June 2009 to June 2012, we enrolled into our study 53 cases of thoracolumbar fractures (single segment compressive or burst fractures) without neurologic injury, among whom 28 were treated by mini-open operation via Wiltse approach ...