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Neurogenic Thoracic Outlet Syndrome Induced by Subclavius Muscle Hypertrophy: A Case Report
Ha Jihoon,Lee Sangpyung,Beak Jinwook,Ryou Kyoung-Soo,Park Tae-Joon,Kim Seong-Hwan 대한말초신경학회 2023 The Nerve Vol.9 No.1
Neurogenic thoracic outlet syndrome (NTOS) is a complex disorder characterized by compression of the brachial plexus, resulting in pain, weakness, and sensory changes in the upper extremity. Traditional surgical treatments, such as first rib resection or anterior scalene muscle resection, can be invasive and associated with significant morbidity. We present a unique case of a patient diagnosed with NTOS who underwent a preoperative magnetic resonance imaging with the shoulder in an abduction position to identify the cause of NTOS. A minimally invasive subclavius muscle resection was subsequently performed, resulting in a dramatic reduction in pain and significant improvement in motor symptoms. This less invasive approach led to a quicker recovery time and reduced morbidity compared to traditional surgical methods. This case report suggests that before surgery, thoroughly investigating the causes of NTOS and selectively performing decompression only on the structures requiring intervention could also be considered a viable treatment option.
Fast clip을 적용한 콘크리트궤도용 분기기 개발 (Development of turnout on concrete track using Fast clip)
황광하(Kwang-Ha Hwang),류기대(Ki-Tae Ryou),박춘복(Chun-Bok Park),박광련(Kwang-Ryoun Park),윤병현(Byung-Hyun Yun) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.5
Turnout is a mechanical installation enabling railway trains to be guided from one track to another at a railway junction. there are classified variously according to rail type, sleeper type, fastening system, track type. Construction of concrete track are on the increase recently to secure the safety of track structure as well as to reduce the maintenance cost. SFC fastening system used the plain track a lot and for those reasons, The fast clip turnout demand growing to improving efficiency of the maintenance cost by unification of fastening clip on whole line. in this study is about development of the fastening system for new turnout using fast clip. this fastening system assembled elasticity pad underneath a base plate. its can change stiffness how to adjust contact surface area of elasticity pad Developed fastening system have passed test according to rule of KRS-TR0014-09R (rail fastening system) and Performance Certification by KR
Fast clip을 적용한 콘크리트궤도용 노스가동 분기기 개발
황광하(Kwang-Ha Hwang),류기대(Ki-Tae Ryou),박춘복(Chun-Bok Park),박광련(Kwang-Ryoun Park),윤병현(Byung-Hyun Yun) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.10
Turnout is a mechanical installation enabling railway trains to be guided from one track to another at a railway junction. A movable nose crossing frog is a device used at a railway turnout to eliminate the gap at the common crossing (High manganese block assembly crossing)which can cause impact damage noise and vibration. Our government has a plan speed up of conventional line to 250km/h semi-high speed. We had already developed flexible turnout with fixed crossing(High manganese) and SFC fastening system can cover in the semi-high speed line In this study is about development of the movable nose crossing turnout available Semi-high speed line on concrete track. This paper describes about geometry attack angle bending stress at the nose switching force safety of continuous welded long rails. This movable nose crossing turnout is expected greatly increases passing speed of turnout in national railway