In this paper, a numerical study is conducted to investigate the stress shadow effects (stress reorientation and change) during hydraulic fracturing in a transverse multiple fracture system. A numerical model is used for the numerical study. It is a 3D model and can simulate the fracture operation from injection begin to full closure (fracture contact). Therefore, there is no need to assume the...

Transverse fracture through the axis body is quite different from Anderson and D’Alonzo type III odontoid fracture, and its combination with hangman’s fracture has not been reported on a literature review, which is a combination fracture involving multiple areas of axis and the classification relative to multiple axis fractures that have not been put forward yet. Although there was no neurologi...

BACKGROUND Osteoporosis is an important risk factor for fragility fractures. Although osteoporosis is considered common in multiple sclerosis (MS), few previous studies focused on fractures in MS. OBJECTIVE Using the North American Research Committee on Multiple Sclerosis (NARCOMS) Registry, we investigated the frequency of osteoporosis, fractures, and clinical risk factors for fracture in MS...

INTRODUCTION For decades, acetabular fractures were treated conservatively. Judet et al. in 1960s established the operative treatment of these fractures by continuous improvement of pre-operative evaluation and classification of fractures. Several studies demonstrated that accurate fracture reduction decreases the incidence of post-traumatic arthritis and improves functional outcome. CASE SER...

Central acetabular fracture dislocation is usually caused by high-energy external trauma. However, 26 cases that occurred as a result of a seizure attack appeared in the literature from 1970 to 2007, with the seizure attacks themselves caused by many different factors. In this setting, the central acetabular fracture not caused by direct trauma might initially remain unnoticed leading to a dela...