abstract   background: fractures of the tibia are important for their commonness and controversy in their management. both conservative and surgical techniques have been introduced in an effort to speed time to :::::union::::: while minimizing the occurrence of complications. standard treatment for low-energy tibial shaft fractures includes closed reduction and cast immobilization. the purpose ...

The early detection of vertical root fractures can be difficult and treatment frequently hopeless. Texts suggest several treatment modalities, ranging from extraclion to hemisection and radisectomy in multirooted teeth. The subject is particularly well documented in articles by Bender and Freedland (1), Bouchan et al. (2), and Mori and lijima (3). Pitts and Natkin (4) have also studied the prob...

Spontaneous fractures (i.e. caused by sudden loading and muscle contraction, not by trauma) represent a significant percentage of proximal femur fractures. They are particularly relevant as may occur in elderly (osteoporotic) subjects, but also in relation to epiphyseal prostheses. Despite its clinical and legal relevance, this type of fracture has seldom been investigated. Studies concerning s...

Abstract As an unconventional oil and gas resource, coalbed methane has become a key area of exploration worldwide, hydraulic fracturing is the critical technology for efficient stimulation methane. However, due to strong heterogeneity deep coal seam reservoirs development natural cleat fractures, fracture propagation path quite complex difficult capture. In this study, we propose simulation me...

Malapa is one of the richest early hominin sites in Africa and the discovery site of the hominin species, Australopithecus sediba. The holotype and paratype (Malapa Hominin 1 and 2, or MH1 and MH2, respectively) skeletons are among the most complete in the early hominin record. Dating to approximately two million years BP, MH1 and MH2 are hypothesized to have fallen into a natural pit trap. All...

Popularly known as "the silent disease" since early symptoms are usually absent, osteoporosis causes progressive bone loss, which renders the bones susceptible to fractures. Bone fracture healing is a complex process consisting of four overlapping phases-hematoma formation, inflammation, repair, and remodeling. The traditional use of natural products in bone fractures means that phytochemicals ...

Despite appropriate management of distal radius fractures, TFCC tears and DRUJ instability in the acute setting, a subset of patients will have ongoing pain or instability of the DRUJ. Ongoing instability is thought to eventually lead to pain, loss of motion and degenerative changes due to alterations in normal kinematics of the joint, although there is little in the literature to support this ...

Since natural fractures have shorter heights, it is necessary to incorporate the height difference in mechanical behavior of hydraulic fracture crossing cemented at different angles. However, impact growth on intersection and not yet fully understood present. In this study, we use adaptive cohesive zone methods investigate behaviors a propagating hydrofracture The patterns mechanisms for crack ...

The development of natural fractures (NFs) in shale gas reservoirs is conducive to improving the productivity wells. However, NF leads high-frequency frac hits between infill and parent wells, which critically restricts its efficiency. To elucidate large contribution hydraulic (HFs) NFs during production NF-developed reservoirs, such WY area western China are taken as an example. A total 197 we...