OBJECTIVES Suboptimal bone health is increasingly recognised as an important cause of morbidity. Multiple sclerosis (MS) has been consistently associated with an increased risk of osteoporosis and fracture. Various fracture risk screening tools have been developed, two of which are in routine use and a further one is MS-specific. We set out to compare the results obtained by these in the MS cli...

Fracture of femur bones in car accident is common. In the present work, the fracture of femur bone was modeled as a failure under three-point bending. The CT scan data was converted into 3D solid modeling using Mimics software. The finite element analysis (FEA) was carried out using ANSYS software. The FEA results were in good agreement with the experiment results.

Superior variety of anterior dislocation of the hip is a rare injury. Its occurrence with acetabular fractures has been documented infrequently. We report a case of superior dislocation of the hip with anterior column acetabular fracture. Open reduction of the hip and internal fixation of the fracture was carried out using a twin incision technique. The course to recovery has been uneventful.

A new procedure is proposed to perform push-out tests in SiC/SiC composites. To avoid the interphase damage resulting from mechanical polishing, the sample is prepared with the help of a ion slicing process. Initiation of debonding is detected on the mechanical response. A finite fracture mechanics approach allows to use the force at debonding onset to estimate the interfacial fracture energy.

Bilateral locked facets at L4-5 without facet fracture is a rarely known disease. We present a case of a 37-year-old male patient diagnosed as traumatic L4-5 bilateral facets dislocation without facet fracture. We carried out open reduction, epidural hematoma removal, posterior interbody fusion. After surgery, we attained rapid improvement of the neurologic deficits and competent stabilization.

The fracture and crack growth of mechanical structures is a usual phenomenon which is due to the application of tensile, cyclic loading or thermal stresses on the structure. So introducing of methods to prevent the crack growth is useful. Afterward, one of the repairing methods of crack growth, consisting to make a hole in the crack tip to elimi-nate the sharp corners, was explained. This metho...

Background: Proximal humeral fracture is the second most common fracture of upper limb. The problem like swelling, pain, stiffness, functional disabilities were the major problem, even after the physical therapy of proximal humeral fracture. Objective: To find out the effect of progressive controlled weight bearing on upper extremity following proximal humeral fracture using functional range of...

Shock wave induced spall fracture is a complex multiscale phenomenon, and it is a challenge to build a constitutive and computational model that can capture the essential features of the spall fracture. In this work, we present a computational micro-mechanics model to simulate spall fracture by using part of the multiscale micro-mechanics theory proposed the Wright and Ramesh (Wright and Ramesh...

This study investigated the fracture resistance and retention of endodontically treated roots with over-flared canals restored with different post systems, including one cast metal post and four fiber posts with/without auxiliary fiber posts. One hundred endodontically treated incisor roots were experimentally flared using a tapered diamond bur. The roots were restored using one of the five pos...

INTRODUCTION Stress fractures are common during military training but femoral neck stress fractures are uncommon and sometimes pose diagnostic and therapeutic challenges. An incomplete stress fracture with excellent prognosis, if left unprotected, can lead to displaced femoral neck fracture with almost 63% complication rate even with best of the treatment. The aim of this study was to analyze v...