This study introduces a novel approach to model the hydraulic fractures in a shale reservoir using a common stochastic method called “random-walk.” The goal of this work is to capture part of the “complexity” of a fracture/fracture network that has been generated by a hydraulic fracturing treatment and to attempt to characterize this fracture network using reservoir performance signatures. The ...

INTRODUCTION A femoral shaft fracture with an ipsilateral patella fracture has been, to our knowledge, given only cursory attention in English-speaking literature. CASE PRESENTATION A 15 year old male patient had hitten by a car to his motorcycle came to emergency room and he had been operated for his femoral shaft freacture and vertical patellar fracture which was iniatally missed. CONCLUS...

BACKGROUND Posterior fixation alone may not be adequate to achieve and maintain burst fracture reduction. Adding screws in the fractured body may improve construct stiffness. This in vitro study evaluates the biomechanical effect of inserting pedicle screws in the fractured body compared with conventional short- and long-segment posterior fixation. METHODS Stable and unstable L2 burst fractur...

There has been a resurgence in the treatment of end-stage tibiotalar arthritis with prosthetic replacement. This procedure has highlighted numerous complications including malleolar fracture. We wanted to determine the clinical relevance of malleolar fracture with the two most commonly used implants in the United States. We retrospectively compared the first 20 STAR with the first 25 Agility to...

Abstract Background To introduce a novel transoral instrumentation in the treatment of unstable fractures atlas. Methods From January 2008 to May 2018, 22 patients with C1 who received Jefferson-fracture reduction plate (JeRP) via approach were retrospectively analyzed. The case history and radiographs before after surgery noted. type fracture, position internal fixation assessed through preope...

The aims of this study were to evaluate the effect of root canal filling techniques on root fracture resistance and to analyze, by finite element analysis (FEA), the expansion of the endodontic sealer in two different root canal techniques. Thirty single-rooted human teeth were instrumented with rotary files to a standardized working length of 14 mm. The specimens were embedded in acrylic resin...

A case of a mandibular fracture with an unusual complication is reported. A 13-year-old boy was admitted four years after conservative treatment of a symphyseal fracture. He complained of recurrent swelling. A radiographic evaluation showed a horizontally laid permanent mandibular left lateral incisor (PMLLI) that had probably slid into the fracture line and provoked repetitive infection episod...

Study Design Biomechanical analysis of lateral mass screw pullout strength. Objective We compare the pullout strength of our bone cement-revised lateral mass screw with the standard lateral mass screw. Methods In cadaveric cervical spines, we simulated lateral mass screw "cutouts" unilaterally from C3 to C7. We salvaged fixation in the cutout side with polymethyl methacrylate (PMMA) or Cortoss ...

Subchondral insufficiency fracture (SIF) of the femoral head occurs in the elderly and recipients of organ transplantation. Osteoporosis and deficient lateral coverage of the acetabulum are known risk factors for SIF. There has been no study about relation between spinopelvic alignment and anterior acetabular coverage with SIF. We therefore asked whether a decrease of lumbar lordosis and a defi...