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구정귀(Jeong-Kui Ku),백진아(Jin-A Baik) 대한치과의사협회 2024 대한치과의사협회지 Vol.62 No.4
Autogenous bone grafts remain the standard for cleft alveolus surgery despite absorption tendencies and donor site complications. DDM, derived from teeth, demonstrates promising osteoinductive properties comparable to autogenous bone. This paper aims to introduce and discuss cases of bone graft for cleft alveolus utilizing demineralized dentin matrix (DDM) derived from teeth, highlighting the outcomes and potential advantages of DDM in cleft alveolus reconstruction. A nine-year-old patient underwent cleft alveolus surgery with bilateral bone grafting. To address volume limitation of DDM, the surgical procedure involved harvesting bone from the anterior iliac crest. Postoperative radiographic assessments at nine months revealed favorable bone integration in the cleft region. The study advocates for further exploration of DDM applications in clinical recommends.
남서대서양 아르헨티나 짧은지느러미오징어(Illex argentinus)의 어획변동
구정은 ( Jeong Eun Ku ),최석관 ( Seok-gwan Choi ),안두해 ( Doo-hae An ),김은정 ( Eunjung Kim ) 한국수산과학회(구 한국수산학회) 2020 한국수산과학회지 Vol.53 No.6
The spatial and temporal catch variations of Argentine shortfin squid Illex argentinus in the Southwest Atlantic Ocean (SWA) were analyzed using Korean squid-jigging fishery data collected through electronic reporting system (ERS) from 2016 to 2020. The ERS linked with GPS has been implemented for collecting fishing data from all Korean fishing vessels operating in international waters since November 2015. The fishing period of the Korean squid-jigging fishery in the SWA runs from early summer to autumn (December to June) in the Southern Hemisphere. The fishing ground was extended from 42°S to 48°S along the Patagonian continental shelf and slope, and the main fishing ground was formed around the Falkland Islands. The yearly catch per unit effort (CPUE) of I. argentinus fluctuated between 1.69 and 7.53 tons/day. In this study, during the fishing season, a south and westward shift on the fishing ground was observed indicating the feeding migration of the south Patagonian stock. The shift in monthly fishing centroids differed according to fishing season. The gradual southward shifts of fishing centroids were observed in the catch years (2017 and 2018), whereas unapparent shifts in fishing centroids were observed in the low catch years (2016 and 2019).
구정회(Jung-Hoei Ku),조형래(Hyung-Lae Cho),박만준(Man-Jun Park),김정철(Jeong-Cheol Kim) 대한견주관절의학회 2011 대한견주관절의학회지 Vol.14 No.2
목적: 골내 침범이 동반된 비전형적인 견관절 석회화 건염 1예를 보고하고자 한다. 대상 및 방법: 만성적인 좌측 견관절 동통의 급성 악화와 운동 제한을 주소로 내원한 59세 여자 환자로 단순 방사선 상 견봉하 석회 침착과 자기 공명 영상 상 감염이나 종양과 유사하게 골 피질을 침범하고 석회 물질이 골 내부로 연장되어 있었다. 관절경하 석회 제거술과 골내 석회의 소파술, 건 결손부에 봉합 나사못을 이용한 회전근 개 봉합술을 시행하였다. 결과: 환자의 급성 견관절 통증은 술 후 즉각적인 호전을 보였고 순조로운 재활 경과와 관절 운동범위의 회복을 보였다. 술 후 5개월에 촬영한 단순 방사선 상 석회 침착의 재발은 관찰되지 않았다. 결론: 견관절 석회화 건염은 주위 골조직으로 연장된 다양한 영상 소견을 나타 낼 수 있으며, 질환을 정확히 판별함으로써 불필요한 검사나 치료를 피할 수 있을 것으로 생각된다. Purpose: We present an atypical case of calcific tendinitis of the shoulder with intraosseous loculation. Materials and Methods: A 59 year-old female complained of acute exacerbation of chronic left shoulder pain and restricted range of motion. Simple radiographs showed a subacromial calcific deposit and magnetic resonance imaging revealed cortical erosion with intraosseous extension of calcific material mimicking infection or tumor. She was managed with arthroscopic excision of the calcific deposit, curettage of the intraosseous lesion and subsequent rotator cuff repair with a suture anchor. Results: Her acute pain promptly subsided. Her rehabilitation was uneventful and she gained full range of motion. Radiographs five months after the operation showed no recurrence of calcific material. Conclusion: Calcific tendinitis of the shoulder can present with a variety of images involving the adjacent bone. The correct recognition of this disorder may avoid unnecessary investigation and treatment.
구정회 ( Jung Hoei Ku ),조형래 ( Hyung Lae Cho ),진홍기 ( Hong Ki Jin ),김지언 ( Ji Un Kim ) 대한스포츠의학회 2017 대한스포츠의학회지 Vol.35 No.2
Medial epicondylitis, also known as “golfer`s elbow,” is a common overuse syndrome of the elbow and predominantly affects the origin of the common flexor tendon. We report two unique cases of medial epicondylitis complicated by chronic complete tear of the ulnar collateral ligament and common flexor tendon origin. Physical examination showed a focal huge swelling of medial epicondylar region of the dominant elbow and magnetic resonance imaging revealed complete tear of the ulnar collateral ligament and common flexor tendon and extravasation of intra-articular effusion. Satisfactory results were achieved with ulnar collateral ligament reconstruction and simultaneous repair of the common flexor tendon origin.
구정하(Jungha Ku),유운형(Unhyung Ryu),정욱섭(Wookseob Jeong) 한국HCI학회 2019 한국HCI학회 학술대회 Vol.2019 No.2
본 연구는 디지털 치과 당일 치료 통합 솔루션 개발과제의 일환으로 디지털 치과 솔루션 (구강스캐너, CAD/CAM, 가공기 등)이 기존 치과에 적용되기 위해 서비스 이용자 중심에서 필요한 것을 제품-서비스 시스템 디자인의 관점에서 살펴보았다. 이를 위해 치과 서비스 이용자, 치과의사, 치과위생사 및 행정담당자, 기공사, 개발사 임직원 등 30 명을 대상으로 한 심층인터뷰, 현장관찰, 서비스 사파리, 문헌조사 등을 통해 세가지 디자인 원칙을 도출하였다. 도출된 디자인 원칙은 a) 치과 서비스 이용자가 ‘신뢰’를 느낄 수 있도록 통증에 공감하고 감각을 배려한 지속적 의사소통 수단을 마련하는 것, b) 디지털 치과 서비스를 제공하는 치과의사와 치과위생사의 니즈에 적합한 단계별 교육 프로그램과 인력훈련 환경을 제공하는 것, c) 이해관계자 간의 소통이 자연스럽게 연결될 수 있는 소통환경을 조성하는 것이다. 이후 디자인 원칙을 바탕으로 구체적인 아이디어를 발굴하기 위해 주요 이해관계자 8 명을 포함한 코디자인 워크숍을 진행하였다. 그 결과 a) 치과의사 중심 진료체제에서 환자가 참여하는 협진 체제로의 전환, b) 서비스 이용자에게 통증과 진료비에 대한 신뢰감을 줄 수 있는 소통방식을 바탕으로 구성된 서비스 시스템이 필요하고, 이를 디지털 치과 솔루션 장비와 통합해야 디지털 솔루션이 적용된 미래치과의 모습을 제시할 수 있다는 결론을 도출할 수 있었다.
구정회 ( Jung Hoei Ku ),조형래 ( Hyung Lae Cho ),황태혁 ( Tae Hyok Hwang ),이동현 ( Dong Hyun Lee ) 대한스포츠의학회 2015 대한스포츠의학회지 Vol.33 No.2
Scapulothoracic bursitis refers to inflammation of the bursae secondary to trauma or overuse owing to sports activities or work. It usually causes persistent pain and scapulothoracic crepitus by irritation of bursa but can be presented as painless mass around chest wall. We report a case of scapulothoracic bursitis in a baseball pitcher presenting as rapidly growing chest wall mass confused with a soft tissue tumor. Computed tomography and magnetic resonance imaging revealed as a well-demarcated cystic mass situated between the scapula and chest wall. Incisional drainage resulted in complete resolution of the mass within a couple of weeks. Scapulothoracic bursitis may be presented as painless huge mass in overhead sports athlete and one of the differential diagnoses of soft tissue tumor of the chest wall.
인도양 해역 우리나라 원양 연승어업의 어획물 종조성과 어획동향(2010-2015년)
구정은 ( Jeong Eun Ku ),이성일 ( Sung Il Lee ),김두남 ( Doo Nam Kim ) 한국수산과학회(구 한국수산학회) 2018 한국수산과학회지 Vol.51 No.3
We analyzed scientific observer data to identify species composition and catch trends of Korean tuna longline fisheries in the Indian Ocean. The data were collected by Korean scientific observers onboard Korean tuna longline fishing vessels in the Indian Ocean from 2010 to 2015. The observers identified 94 species including 5 tuna, 6 billfish, 11 shark, 7 other fish, 5 seabird and 1 sea turtle. Albacore tuna Thunnus alalunga and southern bluefin tuna Thunnus maccoyii were the dominant tuna species, and swordfish Xiphias gladius were the most commonly captured billfish. During the survey periods, 87 seabirds were incidentally bycaught. Black-browed albatross Diomedea melanophris was the dominant seabird species in bycatch, especially in 2010. Cluster analysis showed difference in the species composition of catches between the eastern and western Indian Ocean.