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강종우,백정흠,서동훈,박정호,김동휘,박종웅 대한수부외과학회 2019 대한수부외과학회지 Vol.24 No.3
Peripheral nerve torsion is a rare cause of peripheral nerve palsy and its etiology is also unknown. It is usually misdiag-nosed as compressive neuropathy or radiculopathy of spine though the treatment and clinical result are different from them. Authors present a case of radial nerve torsion. The symptom was same with a posterior interosseous nerve syn-drome. However, the lesion is located not at forearm but at arm. 말초 신경 염전(peripheral nerve torsion)은 말초 신경 마비(peripheral nerve palsy)를 발생시키는 드문 질환으로 그 발생 원인도 아직 알려진 바 없다. 말초 신경 염전은 보통 압박성 신경 병증(compressive neuropathy)이나 척추 신경근 병증(radiculopathy)으로 잘못 진단되는 경우가 많으며 그 치료 및 결과도 다르다. 저자들은 상완부(arm)에서 요골 신경 염전이 발생하였으나 신경 증상으로 수지 하수(finger drop)만 발생하여 후골간 신경 증후군(posterior interosseous nerve syndrome)으로 오인되었던 요골 신경 염전 증례를 보고하는 바이다.
주관증후군의 치료를 위한 국소 스테로이드 주사 요법의 효과
강종우,박종웅 대한근전도전기진단의학회 2016 대한근전도 전기진단의학회지 Vol.18 No.2
Local steroid injection has been shown to be effective in carpal tunnel syndrome at least temporarily and it is also being attempted for conservative treatment of cubital tunnel syndrome recently. However local steroid injection may be effective in reducing nerve inflammation and edema caused by local compression in nerve entrapment syndromes theoretically, hasty conclusions should not be made about effect of local steroid injection in cubital tunnel syndrome because of many differences between carpal and cubital tunnel syndrome in etiopathogenic mechanism and pathophysiology. If local steroid injection is effective in cubital tunnel syndrome, it must be only temporary effect. Moreover, repeated steroid injection can induce adverse effect of nerve atrophy or degenerative change and it can drive patients defer their surgical decompression. Therefore it should be conducted carefully and limitedly in case of ulnar neuritis and mild cubital tunnel syndrome with short symptom duration for temporary relief of symptoms.
강종우 대한골절학회 2024 대한골절학회지 Vol.37 No.1
Complications of hand fractures occur regardless of the methods used for their treatment. The treatment is also challenging. The most common and troublesome complications of hand fractures are malunion, finger stiffness, and consequent functional impairment. Early recognition and meticulous treatment of these complications is essential for improvement in hand function and satisfaction. Most of all, surgeons should clearly understand that prevention of complications is the easiest way to ensure a satisfactory outcome in hand fractures.
고형물 회수공정 결합형 신개념 음식폐기물 디스포저 시스템의 개발 및 성능 평가
강종우,전용우,유해민,이동훈,이홍규 한국폐기물자원순환학회 2013 한국폐기물자원순환학회지 Vol.30 No.1
A food waste disposer is an electrically powered device installed under a kitchen sink. It is located between the sink’s drain and the trap which shreds food waste into tiny pieces so that they can go through plumbing. Use of this unit is convenient and hygienic for discharging food waste in kitchen. Nevertheless, this unit has been illegal until now in Korea because of both conflict with the government’s policy-resource recovery from food waste-and perceived threat to the city’s sewer system. An attempt was made recently to meet growing need to introduce this unit for advantage of using disposer and maintenance of sewer system, etc. So an attempt was made to introduce the food waste disposer system of ‘treatment type before discharging to sewer’, but it was inappropriate for conditions in Korean. In this study, we developed a suitable disposer system for Korea based on an innovative solid recovery technology. And continuous operating experiments were carried out to evaluate the performance of the system for 18 days. The amount of food waste fed into the system was equivalent to the daily amount of food waste made from 30 households living in apartment units, which was calculated to be 14.44 kg/day. After grinding, SS/TS of food waste was 60 percent and it was the maximum amount of solid that could be recovered using this system. In the system of solid collection type using screw press, more than 70 percent of suspended solids were recovered. And less than 20 percent of total soilds were discharged through wastewater and it satisfied the legal standard of Korea. This novel food waste disposer system will satisfy with both the government’s environmental policy and higher quality resource recovery from food waste in the facilities.
강종우,전용우,한진영 한국폐기물자원순환학회 2013 한국폐기물자원순환학회 학술대회 Vol.2013 No.2
최근 하수슬러지의 고형연료화와 관련하여 건조 기술에 대한 관심이 높아지고 있다. 현재 산업용 건조 기술에는 여러 가지가 있으나, 일반적으로 대류 열전달 방법인 열풍 건조가 많이 이용되고 있다. 그러나 열풍 건조는 유지 관리 비용이 크며, 외부 조건에 영향을 받는 등의 운전상 어려움이 있다. 이에 비해 마이크로파 건조는 복사에 의한 내부가열 방식으로 건조시간을 단축시킬 수 있으며, 에너지효율 면에서도 뛰어나다. 그러나 국내에서는 적용 실적 및 성공 사례의 부족으로 인해 활용되지 못하고 있는 실정이다. Batch type의 lab-scale 1 ~ 4kW급 마이크로파 건조기를 사용하였으며, 하수슬러지 건조 시 피건조물의 최적 투입 두께는 2 cm 이하, 마이크로파의 최적 조사 높이는 조사너비의 70%로 도출되었다. 건조효율 평가를 위하여 2.4 kW급 열풍 건조기를 이용하여 비교 실험을 진행한 결과, 열풍 건조에 비해 마이크로파 건조가 동일 조건 하에서 건조시간은 2.7배 단축되었으며, 수분증발효율은 4배 높은 것으로 나타났다. 특히 수분함량 60 ~ 10% 구간의 수분증발효율은 마이크로파가 열풍보다 약 6배 높은 것으로 나타났으며, 피건조물의 초기 수분함량이 낮을수록 마이크로파 건조가 더 유리한 것을 확인하였다.