In this study, activated carbon fibers (ACFs) were prepared using a new method from polyethylene (PE) fibers. The stabilizing (or crosslinking) process of PE, an essential step, was achieved through a hybrid treatment using electron-beam/sulfuric acid at 110 °C that was more effective than the traditional method of using sulfuric acid at 180 °C for polyolefin. The stabilized precursor was then carbonized at 700 °C and activated at 900 °C with different activation times.
View Article and Find Full Text PDFIn this study, a method for manufacturing high-density polyethylene (HDPE)-based carbon fibers using a hybrid cross-linking method was studied. HDPE precursor fibers were first cross-linked with an electron beam (E-beam) at an irradiation dose of 1000-2500 kGy, and then cross-linked in sulfuric acid at 80-110 °C for 60 min. Hybrid crosslinked fibers were carbonized for 5 min at a temperature of 900 °C.
View Article and Find Full Text PDFBackground: We investigated the overall clinical outcome of the expanded paratricipital approach in complex articular fractures of the distal humerus and the effect of lack of visualization in the surgical field. In addition, we performed a cadaveric study to investigate the expansion or limitation of articular access in the expanded paratricipital approach.
Methods: Forty-one AO/OTA type 13C fracture cases treated using the expanded paratricipital approach at a single trauma center from 2013 to 2017 were enrolled in this study.
Background: Osteotomies aimed at correcting adult spinal deformity are associated with higher complications and perioperative morbidity. Recently, oblique lumbar interbody fusion (OLIF) was introduced for degenerative lumbar diseases. The aim of our study is to demonstrate the effectiveness of OLIF on the management of adult degenerative lumbar deformity (ADLD).
View Article and Find Full Text PDFIntroduction: The use of evaporative coolants in the management of acute musculoskeletal injury has received increasing attention recently. However, its efficacy compared with conventional cryotherapy in treating injured human subjects remains unclear. The purpose of this study is to compare the efficacy of evaporative coolants with that of ice packs in preoperative management of edema and pain in patients with an ankle fracture.
View Article and Find Full Text PDFImplant arthroplasty and arthrodesis of the first metatarsophalangeal joint are the main surgical treatment options for advanced hallux rigidus. The superiority of each modality continues to be debated, because there are few high-quality evidence-based studies, such as randomized controlled clinical trials or meta-analyses of comparative studies. The purpose of this study was to identify whether implant arthroplasty or arthrodesis is superior for the treatment of advanced hallux rigidus through meta-analysis of comparative studies.
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