• 제목/요약/키워드: One-hand

검색결과 5,344건 처리시간 0.031초

Role of the Gastrocnemius Musculocutaneous with a Propeller Style Skin Flap in Knee Region Reconstruction: Indications and Pitfalls

  • Gianluca Sapino;Rik Osinga;Michele Maruccia;Martino Guiotto;Martin Clauss;Olivier Borens;David Guillier;Pietro Giovanni di Summa
    • Archives of Plastic Surgery
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    • 제50권6호
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    • pp.593-600
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    • 2023
  • Background Soft tissue reconstruction around the knee area is still an open question, particularly in persistent infections and multiple reoperations scenario. Flap coverage should guarantee jointmobility and protection, even when foreign materials are implanted. The chimeric harvesting of the musculocutaneous gastrocnemius flap, based on the sural artery perforators, can extend its applicability in soft tissue reconstruction of the upper leg, overcoming the drawbacks of the alternative pedicled flaps. Methods A multicenter retrospective study was conducted enrolling patients who underwent to a pedicled, chimeric gastrocnemius musculocutaneous-medial sural artery perforator (GM-MSAP) or lateral sural artery perforator (GM-LSAP) flap for knee coverage in total knee arthroplasty (TKA) recurrent infections and oncological or traumatic defects of the upper leg from 2018 to 2021. Outcomes evaluated were the successful soft tissue reconstruction and flap complications. Surgical timing, reconstruction planning, technique, and rehabilitation protocols were discussed. Results Twenty-one patients were included in the study. Nineteen GM-MSAPs and 2 GM-LSAPs were performed (soft tissue reconstruction in infected TKA [12], in infected hardware [4], and in oncological patients [5]). Donor site was closed primarily in 9 cases, whereas a skin graft was required in 12. Flap wound dehiscence (1), distal flap necrosis (1), distal necrosis of the skin paddle (1), and donor site infection (1) were the encountered complications. Flap reraise associated to implant exchange or extensive debridement was successful without requiring any further flap surgery. Conclusion The propeller-perforator GM-MSAP offers qualitative defect coverage and easiness of multiple flap reraise due to skin availability and its laxity.

OverIT: An Interactive Overlay for Touchscreen-based UI Customization by Demonstration

  • Lee, Kyungyeon;Chung, SeungA;Oh, Uran
    • International journal of advanced smart convergence
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    • 제10권3호
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    • pp.143-148
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    • 2021
  • Smartphones have been widely used for various purposes and stay connected with people at all times. However, the use of such touchscreen devices can be physically restricted depending on users' context where only one hand is available to interact with the device. Even major smartphone manufacturers (e.g., Apple, Samsung) offer one handed mode, they still lack functions in the third-party applications, and the process is also complicated. We propose OverIT, a system that enables users to customize interfaces by adding new buttons on an interactive overlay which can be positioned anywhere on the touchscreen where each button serves the same functionality as an existing one. It is designed to support users to map a certain button event freely and easily to a newly created button by performing a demonstration of a button tap. We expect our system to improve the overall user experience of one-handed interaction with touchscreen devices.

수공예 작업치료 프로그램 활동이 급성기 뇌졸중 환자의 손 기능에 미치는 효과 (Effects of Occupational Therapeutic Craft Activity on improvement cognitive function and hand function in acute patients with stroke)

  • 장태용;박보라;양영애
    • 한국산학기술학회논문지
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    • 제18권5호
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    • pp.355-365
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    • 2017
  • 본 연구의 목적은 급성기 뇌졸중 환자를 대상으로 수공예 작업치료 프로그램 활동을 시행하였을 때 인지기능과 손 기능에 미치는 효과를 알아보고, 추후 급성기 뇌졸중 환자의 중재방법에 대한 유용한 자료를 제공하는 것이다. 본 연구의 진행은 서울 경기도에 위치한 A종합병원, B재활병원에 입원 중인 뇌졸중 환자 30명을 대상으로 2016년 3월부터 2016년 11월까지 두 그룹을 무작위 할당한 후 실험군에는 수공예 프로그램 활동을 4주 동안 주 2회, 30분간 적용하고 그룹 간 비교를 실시하였다. 치료 전 후에 뇌졸중 환자의 인지기능과 손 기능을 평가하기 위해서 사용한 평가도구는 Box & Block Test, Jebsen-Taylor Hand Function Test, Neurobehavioral Cognitive Status Examination(NCSE), Trail-Making Test이다. 결론적으로 중재 전 후 비교에서 수공예 프로그램 활동군의 손 기능 평가가 유의하게 향상되었고(p<.05), 인지기능도 유의하게 향상되었다(p<.05). 본 연구의 결과를 통해서 수공예 프로그램 활동이 급성기 뇌졸중 환자의 인지기능과 손 기능 향상에 더 효과적임을 파악한 점에서 연구의 의의를 지니며, 향후 급성기 뇌졸중 환자의 작업치료 중재 프로그램의 개발 및 적용 시 기초자료로 의미있게 활용될 수 있을 것이다.

어린이들의 비의도적 행위에 대한 노출계수 개발 및 영향요인 분석 (Exposure Factor Development of Children's Hand and Mouthing Activities Using Videotaping Methodology and Analysis of Influential Factors)

  • 정다영;윤효정;양원호;김탁수;서정관;허정;류현수;김순신;최민지
    • 한국환경보건학회지
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    • 제43권5호
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    • pp.438-445
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    • 2017
  • Objectives: The purpose of this study was to develop exposure factor data for the Korean child population, with a specific focus on behavior characteristics such as hand-to-mouth and object-to-mouth and an analysis of influential factors. Methods: We divided environments into two places, which were house/indoor and nursery. A total of 400 children (house/indoor) and a total of 162 children (nursery) were recruited from the cities of Seoul, Incheon, Daegu, and Gwangju. The children were divided into two groups. We conducted direct measurement by using one hour of videotaping alongside questionnaire surveys. This was performed to calculate behavior rates, such as how many children perform hand-to-mouth and object-to-mouth behaviors. Results: The respective average frequencies of hand-to-mouth and object-to-mouth were $0.8{\pm}2.23$ and $0.82{\pm}2.64contacts/hr$ for house/indoor. The respective average frequencies of hand-to-mouth and object-to-mouth were $2.87{\pm}4.63$ and $1.47{\pm}3.84contacts/hr$ in the nursery group. For the mouthing participants, the average frequencies of hand-to-mouth and object-to-mouth were 3.31 and 3.20 contacts/hr in house, and 4.80 and 3.26 in nursery. Compared to other countries such as the USA, the frequencies of hand-to-mouth and object-to-mouth behaviors found in this study were relatively lower. Conclusions: Children have the potential for exposure to toxic substances through non-dietary ingestion pathways by mouthing objects or their fingers. In this study, the mouthing frequency was relatively lower than that found in Western countries. This can be explained that mouthing behaviour may be affected by culture and lifestyle characteristics.

MME 도메인간 핸드오버 지원을 위한 키캐싱 기반 인증비용의 감소기법 (Reduction of Authentication Cost Based on Key Caching for Inter-MME Handover Support)

  • 황학선;정종필
    • 한국인터넷방송통신학회논문지
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    • 제13권5호
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    • pp.209-220
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    • 2013
  • 핸드오버는 통신 중인 무선 단말이 데이터의 손실을 최소화 하면서 현재 접속하고 있는 기지국/셀에서 다른 기지국/셀로 이동을 하여도 연속적으로 통신이 가능하게 하는 기술이다. 즉, 이동통신 가입자가 특정 무선통신 구역에서 다른 무선통신 구역으로 이동할 때, 통화 채널을 자동으로 전환시켜 통화를 끊어지지 않게 해주는 기능을 말한다. 현재 모바일 네트워크의 가장 큰 문제점으로 지적되고 있는 핸드오버 시 통화 지연 현상 및 끊김 현상을 해결하기위해 빠르고 효율적인 핸드오버를 위한 많은 연구가 진행되고 있으며, 이러한 통화지연 및 끊김 현상은 모든 모바일 네트워크에서 필수적으로 해결해야 할 부분이다. 최근 모바일 네트워크의 기술 발달로 LTE(Long Term Evolution) 네트워크가 상용화되어 모바일에서도 고속의 데이터처리가 가능한 시대를 열었다. 하지만 LTE 네트워크 환경에서는 핸드오버 시 새로운 인증키가 생성되어야 한다. 이런 경우 핸드오버에 의해 인증 과정이 수행되어 인증 비용 및 지연시간이 발생하는 문제점이 있다. 본 논문에서는 UE가 oMME에서 nMME로 핸드오버 시 oMME는 인증키를 일정 시간동안 저장하여 인증키의 Life Time내에 기존의 MME로 다시 복귀한다면 저장된 인증키를 재사용을 하여 인증 절차를 간소화하는 효율적인 키캐싱 핸드오버 기법을 제안한다.

고려수지요법이 여성노인의 무릎통증에 미치는 효과 (Effects of Koryo Hand Therapy(KHT) on Woman Elders' Knee Pain)

  • 고효정;정미경;권윤희
    • 한국산학기술학회논문지
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    • 제12권9호
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    • pp.4022-4029
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    • 2011
  • 본 연구는 고려수지요법이 여성노인의 무릎통증에 미치는 효과를 검증하기 위해 실시되었다. 연구설계는 비동등성 대조군 사전 사후설계 유사 실험 연구이며, 연구대상자는 D시 1개 노인병원에 입원하여 있는 여성노인 환자 중 서암봉 요법을 적용한 실험군 A 35명, 서암뜸 요법을 적용한 실험군 B 35명, 대조군 35명으로 총 105명이었다. 실험처치인 고려수지요법은 주 3회씩 6주간 실시하였으며, 자료처리는 SPSS/win 17.0 통계프로그램을 이용하여 ${\chi}^2$-test, One-way ANOVA, Repeated measure ANOVA를 이용하여 분석하였다. 본 연구의 결과는 서암봉 요법을 적용한 실험군 A(p=.000), 서암뜸 요법을 적용한 실험군 B(p=.000)는 처치를 받지 않은 대조군보다 무릎통증이 감소되었다. 그리고 서암뜸 요법을 적용한 실험군 B는 서암봉 요법을 적용한 실험군 A보다 무릎통증이 감소(p=.001)되었다. 이상에서 고려수지요법은 여성노인의 무릎통증 완화에 효과적인 대체 요법이라고 볼 수 있다.

PLN 성분 분석을 통한 전기장센서 기반 손동작신호 추출 (Hand Motion Signal Extraction Based on Electric Field Sensors Using PLN Spectrum Analysis)

  • 정선일;김영철
    • 스마트미디어저널
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    • 제9권4호
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    • pp.97-101
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    • 2020
  • 본 연구에서는 센서상의 전하량 변화를 통하여 전위차를 측정할 수 있는 수동형 전기장센서를 이용하여 사람의 손동작에 의해 유발되는 신호를 측정 장치의 전원이나 주변 전력선에 의해 센서에 유입되는 잡음(PLN: Power Line Noise)의 고조파 성분을 분석하여 동작신호를 검출하고 추출하는 연구를 수행 한다. 전기장 센서에 유입되는 전력선잡음으로 센서가 사람의 존재, 접근, 동작에 의해 영향 받는 사실을 이용해 PLN의 주성분인 60Hz 고조파 성분의 스펙트럼분석을 수행하여 PLN 신호의 증가 또는 감소를 식별할 수 있고 상대적으로 동작에 민감한 120Hz 성분을 이용한다. FFT를 사용하여 120Hz의 신호성분이 특정 임계값을 통과할 때 신호를 검출하는 방법이다. 동작이 탐지되는 경우 임계값을 기준으로 프레임을 결정한다. 본 연구의 방법을 이용하여 얻은 동작 감지 성공률은 약 90% 수준을 달성하였다. 이렇게 감지된 동작신호로 추출한 프레임의 정확도는 약 85%이다. 수동형 전기장 센서를 이용하여 동작신호를 PLN을 이용하여 동작검출에 이용한 연구사례는 국내외적으로 드문 사례이며, 본 논문에서는 PLN이 상존하는 실내 적용환경에서 유망하게 활용될 수 있다.

Incidence of apical crack formation and propagation during removal of root canal filling materials with different engine driven nickel-titanium instruments

  • Ozyurek, Taha;Tek, Vildan;Yilmaz, Koray;Uslu, Gulsah
    • Restorative Dentistry and Endodontics
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    • 제42권4호
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    • pp.332-341
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    • 2017
  • Objectives: To determine the incidence of crack formation and propagation in apical root dentin after retreatment procedures performed using ProTaper Universal Retreatment (PTR), Mtwo-R, ProTaper Next (PTN), and Twisted File Adaptive (TFA) systems. Materials and Methods: The study consisted of 120 extracted mandibular premolars. One millimeter from the apex of each tooth was ground perpendicular to the long axis of the tooth, and the apical surface was polished. Twenty teeth served as the negative control group. One hundred teeth were prepared, obturated, and then divided into 5 retreatment groups. The retreatment procedures were performed using the following files: PTR, Mtwo-R, PTN, TFA, and hand files. After filling material removal, apical enlargement was done using apical size 0.50 mm ProTaper Universal (PTU), Mtwo, PTN, TFA, and hand files. Digital images of the apical root surfaces were recorded before preparation, after preparation, after obturation, after filling removal, and after apical enlargement using a stereomicroscope. The images were then inspected for the presence of new apical cracks and crack propagation. Data were analyzed with ${\chi}^2$ tests using SPSS 21.0 software. Results: New cracks and crack propagation occurred in all the experimental groups during the retreatment process. Nickel-titanium rotary file systems caused significantly more apical crack formation and propagation than the hand files. The PTU system caused significantly more apical cracks than the other groups after the apical enlargement stage. Conclusions: This study showed that retreatment procedures and apical enlargement after the use of retreatment files can cause crack formation and propagation in apical dentin.

Osteomyelitis following Domestic Animal Bites to the Hand: Two Case Reports and Practical Guidelines

  • Lim, Jung Soo;Byun, Jin Hwan;Min, Kyung Hee;Lee, Hye Kyung;Choi, Yun Sun
    • Archives of Plastic Surgery
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    • 제43권6호
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    • pp.590-594
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    • 2016
  • Recently, the number of cases of animal bite wounds has increased significantly in concordance with an increase in the pet population around the world. The authors report two rare cases of osteomyelitis of the phalanx following cat and dog bites. On initial physical examination, signs of a severe infection were observed. Radiographs of both patients showed the presence of osteomyelitis, and in one of the patients, the diagnosis was confirmed with a bone biopsy. After use of empirical antibiotics, intravenous antibiotic therapy that matched the identified bacterium's sensitivity was initiated, and at the same time, secure dressing including debridement was performed to induce secondary healing. In addition, the patients were closely monitored with serial X-rays, and culture and blood test follow-up. One patient fully recovered without sequelae, but the other patient suffered a loss of distal interphalangeal joint motion. When dealing with bite wounds located on the hand, it is important to visit the hospital as soon as possible and receive the appropriate treatment early. Moreover, to prevent severe complications such as osteomyelitis, it is important to administer antibiotic therapy to which the cultured bacteria are sensitive, along with proper wound management and prophylactic antibiotic treatment.