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태아 간에서 동모양혈관벽의 발육:내피세포, 별모양큰포식세포 및 적혈구의 통벽성 이주에 대한 형태학적 연구
이원각(LEE Won Gak),김경용(KIM Kyung Yong),이원복(LEE Won Bok) 대한체질인류학회 1995 해부·생물인류학 (Anat Biol Anthropol) Vol.8 No.2
태령 제 11주부터 태령 제23주 사이의 5예 태아 간에서 동모양혈관의 미세구조를 전자현미경으로 관찰하였다. 바닥판이 결여된 내피세포는 조사된 시기에서 동모양혈관벽의 대부분을 형성하였다. 또한 이 세포들은 세포사이 연접 및 중복되어 이웃하는 세포와 연결되며 성인 간과는 다르게 무창내피세포를 계속 유지하고 있었다. 또한 내피세포는 동모양혈관 내강쪽 세포막은 coated pit가 자주 발견되었으며 세포질에서는 크고 작은 여러 개의 소포들이 발견되었다. 내피세포는 혈관벽공간에 위치한 새로이 형성된 세망적혈구나 산호성적혈구모세포의 통벽성 이주에 관여하고 내피세포의 세포질 속에 침입하고 일시적인 이주구멍을 형성하여 동모양혈과 내장으로 이주하고 이주과정이 끝난 뒤에는 이주구멍의 폐쇄가 일어났다. 동모양혈관 주위지방세포는 동모양혈관주위공간을 분리하고 있으며 동모양혈관을 불연속적으로 둘러싸고 있었다. 별모양큰포식세포는 조사된 시기에서 산호성적혈구모세포의 탈출된 핵을 포식한 포용소제와 동모양혈관쪽 세포막은 나뭇가지 모양의 세포질돌기를 갖고 있어 쉽게 확인하였다.
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슬관절 전치환술후 일상생활의 문제점 : 농촌지역의 거주환자를 중심으로
김동헌,이원각 대한슬관절학회 1992 대한슬관절학회지 Vol.4 No.2
Forty-two patients (fifty-three knees) with severe arthritis of the knee were treated by total knee replacement. We used 42 P.F.C. knees and 11 A.M.K. knees. The forty-two patients consisted of thirty three females and 9 males ranging in age from 29 to 80 years (mean, 59 years). The mean follow-up period was 23 months (range, 4 months to 40 months). One of the primary goals of total knee replacement (TKR) is the restoration of painless, functional range of motion (ROM). In the authors experience, however arthroplasty never restores the full flexion or function of the normal knee. We analyzed the results and problems in daily activities of the patients living in rural area after TKR, We obtained following results; 1. Pain relief and level walking, stair up and down were satisfactory in 90 percents of the patients. 2 The mean postoperative flexion was 107 degrees and ranged from 55 degrees to 135 degrees. The mean postoperative flexion contracture were 5 degrees and ranged from 0 to 16 degrees. 3. The average Knee Rating Score of Hospital for Special Surgery was improved from 48 preoperatively to 82 postoperatively. 4. Patients living in rural area had many difficulties in daily life. 5. Equipment requirements at home and change of life style are necessary in bilateral cases and patients less than 100 degrees of ROM in single TKR.
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관절경소파술 및 탄소섬유 관절성형술에 의한 슬관절 골연골결손의 치료
김동헌,이원각 대한슬관절학회 1992 대한슬관절학회지 Vol.4 No.1
Thirty-nine patients (forty-two knees) with osteochondral defect of the knee were treated by the abrasion arthroplasty and carbon fiber arthroplasty. The thirty nine patients consisted of nineteen females and twenty males ranging in age from 35 to 76 years (mean, 48 years). The mean follow up period was 15 months (range, 6 months to 17 months). Abrasion arthroplasty was performed in patients with osteoarthritis. Satisfactory result could be obtained in patients with 2 cm or smaller osteochondral defect. Carbon fibers have many attractions. In its pure form, it is chemically inert and biocompatible with the environment of the knee, and induces an abundant collagenous fibrous tissue organized around and along the carbon fibers. Many of the patients demonstrated an excellent recovery process, e.g. the quickly become able to move without pain. I employed arthroscopy for 2 to 12 months after surgery in 6 patients and found that very few rods or pads were still visible in 6 months after implantation. I have seen no evidence of disintergration in any of the pads or rods, or migration of carbon fiber debris into the joint space or the surrounding tissues. The carbon fiber arthroplasty appears to be appropriate in the surgical management of grade II articular cartilage defects (i.e., erosion of the articular cartilage down to the subchondral bone) in the painful knee.
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Cotrel-Dubousset 기기를 이용한 불안정성 흉요추부 골절 및 골절 탈구의 치료
김동현,이원각,이성태 건국대학교 의과학연구소 1992 건국의과학학술지 Vol.2 No.-
There have been progressive increase in use of internal fixator for treatment of unstable fractures and fracture-dislocations of thoracolumbar spine that offers several advantages such as more rigid fixation and early mobilization of patient. This is a retrospective clinical and roentgenographic study to evaluate the effectiveness of Contrel-Dubousset instrumentation as a internal fixation device of spine and to analyze the causes of some complications. We analyzed 15 cases of thoracolumbar spine fracture and fracture dislocations associated with instability which was fixed with Cotrel-Dubousset instrument. Average follow up period was 6 months. The results obtained were as follows : 1. Of 15 cases, male were 11 cases, female were 4 cases, and average age of the patients was 42 years. 2. The sites of injuries were L1, L2 in 12 cases(80%) burst fracture was most common injury type. 3. In burst fractures, postoperative relative excellent reduction states were observed but the height of vertebral body was often collapsed slightly, during follow up period. 4. Metallic failure was developed in one case. 5. Cotrel-Dubousset instrument has many advantages such as anatomical reduction, rigid fixation and good maintenance for treatment of thoracolumbar spine fracture and fracture dislocation.
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선천성 골 조갑 이형성증 : A Case Report 1례 보고
황규광,이원각,김동헌 건국대학교 의과학연구소 1993 건국의과학학술지 Vol.3 No.-
The Onycho-osteodysplasia is characterized anomalies of nails associated various skeletal dysplasia-knee, pelvis, elbow and others. The condition is usually transmitted as a simple autosomal dominant gene. The authors experienced one case of Onycho-osteo dysplasia showing dystropies of mails and hypoplastic patellae in a 4-year-old boy.
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