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Pulsed Radiofrequency Neuromodulation for the Treatment of Saphenous Neuralgia
Han, Bo Ram,Choi, Hyuk Jai,Kim, Min Ki,Cho, Yong-Jun The Korean Neurosurgical Society 2013 Journal of Korean neurosurgical society Vol.54 No.2
A 65-year-old male presented with pain in his right medial calf. An imaging study revealed no acute lesions, and a diagnosis of saphenous neuralgia was made by a nerve conduction study. He received temporary pain relief with saphenous nerve blocks twice in a one-week interval. Pulsed radiofrequency neuromodulation reduced pain to 10% of the maximal pain intensity. At 6 months after the procedure, the pain intensity was not aggravated even without medication. Pulsed radiofrequency neuromodulation of the saphenous nerve may offer an effective and minimally invasive treatment for patients with saphenous neuralgia who are refractory to conservative management.
Han, Bo Ram,Cho, Yong Jun,Yang, Jin Seo,Kang, Suk Hyung,Choi, Hyuk Jai The Korean Neurosurgical Society 2014 Journal of Korean neurosurgical society Vol.55 No.3
Objective : Posture-induced radial neuropathy, known as Saturday night palsy, occurs because of compression of the radial nerve. The clinical symptoms of radial neuropathy are similar to stroke or a herniated cervical disk, which makes it difficult to diagnose and sometimes leads to inappropriate evaluations. The purpose of our study was to establish the clinical characteristics and diagnostic assessment of compressive radial neuropathy. Methods : Retrospectively, we reviewed neurophysiologic studies on 25 patients diagnosed with radial nerve palsy, who experienced wrist drop after maintaining a certain posture for an extended period. The neurologic presentations, clinical prognosis, and electrophysiology of the patients were obtained from medical records. Results : Subjects were 19 males and 6 females. The median age at diagnosis was 46 years. The right arm was affected in 13 patients and the left arm in 12 patients. The condition was induced by sleeping with the arms hanging over the armrest of a chair because of drunkenness, sleeping while bending the arm under the pillow, during drinking, and unknown. The most common clinical presentation was a wrist drop and paresthesia on the dorsum of the 1st to 3rd fingers. Improvement began after a mean of 2.4 weeks. Electrophysiologic evaluation was performed after 2 weeks that revealed delayed nerve conduction velocity in all patients. Conclusion : Wrist drop is an entrapment syndrome that has a good prognosis within several weeks. Awareness of its clinical characteristics and diagnostic assessment methods may help clinicians make diagnosis of radial neuropathy and exclude irrelevant evaluations.
Emerging Variant Glioma: Glioblastoma with a Primitive Neuro-Ectodermal Tumor(PNET) Component
Han Bo Ram,최혁재,양진서,Kang Sukhyung,Cho Yong Jun,Choi Kyung Chan 대한말초신경학회 2015 The Nerve Vol.1 No.1
A 81-year old male with multiple mass lesion of the right fronto-temporo-parietal lobe and right frontal lobe was admitted to our hospital due to hemiparesis. Neuroimaging studies showed ring-enhancing lesions in right fronto-temporo-parietal lobe and right frontal lobe on magnetic resonance imaging (MRI). Tumor tissue evaluated to be consistent with glioblastoma radiologically was subjected to total excision. Using a morphological and immunophenotypic approach, the predominant component of the tumor was found to bear the properties of classic glioblastoma. The other component was composed of undifferentiated areas that exhibiting small cell morphology and diffuse neuronal immunophenotype. The case was diagnosed as ‘Glioblastoma with primitive neuroectodermal tumor (PNET) component’. The patient who had been performed postoperative radiotherapy, showed shrinkage of non-operative lesion and no sign of recurrence and neurological deficit during 12 months follow-up. We report a rare case of glioblastoma with a PNET component that has a relatively favorable outcome following surgery with radiotherapy and then review previous reports.
동작에 따른 피부변화 분석을 통한 동작센서 부착의 최적위치 탐색: 조정 동작을 중심으로
한보람 ( Bo-ram Han ),박선형 ( Seonhyung Park ),조현승 ( Hyun-seung Cho ),강복구 ( Bokku Kang ),김진선 ( Jin-sun Kim ),이주현 ( Joohyeon Lee ),김한성 ( Han Sung Kim ),이해동 ( Hae-dong Lee ) 한국감성과학회 2017 감성과학 Vol.20 No.1
하이테크놀로지를 여러 가지 다른 영역과 융합하고자 하는 노력이 다양한 연구 분야에서 시도되고 있으며, 스포츠웨어를 개발함에 있어 운동선수의 운동능력을 향상시키기 위한 분야에 이러한 첨단 기술들이 도입되고 있다. 본 연구는 스포츠 훈련에 도움이 되는 동작 센싱 스마트 스포츠웨어를 개발하기 위한 기초 연구로서, 조정 동작 시 관절의 움직임을 측정할 수 있는 동작 센서를 부착하기 위한 인체상의 최적 위치를 탐색하는 것을 목적으로 한다. 본 연구에서는 일관된 동작을 반복적으로 수행할때 관절의 변화가 큰 조정을 대상 스포츠로 선정하였으며, 조정 선수의 대표 체급인 중량급과 경량급의 피험자를 선정하여 동작에 따른 피부의 변화율을 측정하여 체급별 차이를 분석하였다. 먼저, 3차원 모션캡처 시스템을 이용하여 조정 동작 시 등, 팔꿈치, 엉덩이, 무릎 부위의 피부 변화를 촬영하고, 각 마커 간 거리의 변화율을 분석함으로써 체급에 따른 차이를 보이지 않으면서 동작에 따라 피부의 변화가 큰 부분을 인체 상에 도시하였다. 이를 바탕으로 동작 센싱용 스마트 스포츠웨어를 위한 센서 부착의 가이드라인을 제시하였다. Lots of interdisciplinary studies for fusion of high technologes and the other areas of research had been tried in these days. In sports training area, high technologies like a vital sign sensor or an accelerometer were adopted as training tools to improve the performance of the sports players. The purpose of this study is finding the proper locations on the human body for attaching the motion sensors in order to develop a smart sportswear which could be helpful in training players. The rowing was selected as a subject sport as lots of movements of the joint on human body could be seen in rowing motions. The players of rowing could be devided into two weight divisions, the lightweight and the heavyweight. In this study, the change rates of distance between markers on human skin as the players moved were took on the back, the elbow, the hip and the knee area on human body by 3D motion capturing system. The distances between markers and the differences between the lightweight and heavyweight were analyzed. Finally, this study provided the guide lines for designing a motion sensing smart sportswear.