Byeongwoo Kim

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STUDY DESIGN Study for feasibility of commercially available action cameras in recording video of spine. OBJECTIVE Recent innovation of the wearable action camera with high-definition video recording enables surgeons to use camera in the operation at ease without high costs. The purpose of this study is to compare the feasibility, safety, and efficacy of(More)
BACKGROUND CONTEXT Anterior decompression and fusion (ADF) for ossification of the posterior longitudinal ligament (OPLL) is technically demanding and associated with complications. Although various factors affecting clinical outcome have been investigated in posterior decompression, prognostic factors of ADF remain unclear. PURPOSE The purpose of the(More)
Intersection-collision warning systems use vehicle-to-infrastructure communication to avoid accidents at urban intersections. However, they are costly because additional roadside infrastructure must be installed, and they suffer from problems related to real-time information delivery. In this paper, an intersection-collision warning system based on(More)
BACKGROUND CONTEXT Laminoplasty is a major surgical method used to treat patients with cervical ossification of the posterior longitudinal ligament (OPLL). Sometimes, patients with cervical OPLL demonstrate postoperative kyphosis despite sufficient preoperative lordosis. Recently, the impact of T1 slope has emerged as a predictor of kyphotic alignment(More)
Subependymomas are slow-growing, benign neoplasms that are rarely found in the spinal cord. Because of the differences in the treatment plans, it might be very helpful for neurosurgeons to intraoperatively establish a diagnosis of spinal subependymoma, differentiated from other spinal intramedullary tumors. In this study, we analyzed frozen sections of(More)
This paper describes the design of a high-efficiency vehicular roof-mounted antenna for wireless access for vehicular environment (WAVE) communication systems used for ubiquitous intelligent systems. The main objective of the ubiquitous intelligent system's automotive IT technology is to enhance the connectivity among vehicles to ensure seamless(More)
OBJECTIVE To compare the clinical characteristics of cervical spine trauma in patients with ankylosing spondylitis (AS) and cervical ossification of the posterior longitudinal ligament (OPLL) with those of a control group. METHODS A total of 124 patients with cervical spine trauma from January 2004 to December 2013 were reviewed. Fourteen patients were(More)
STUDY DESIGN Retrospective review of adult spinal deformity patients in a multiethnic database. OBJECTIVE To investigate the role of ethnicity on recruitment of compensatory mechanisms for sagittal spinal deformity. SUMMARY OF BACKGROUND DATA While the impacts of age, sex, and pelvic morphology on the ability to compensate for sagittal malalignment have(More)
Vehicle-mounted sensors have a limited detection range on a road with a gradient in relation to the vehicle infront. This study analyzes the performance on a road with a gradient of a forward collision warning system based on vehicle sensors. The level of warning given in relation to a vehicle infront is defined by the time-to-collision. Simulation results(More)