• Clinical and Experimental Pediatrics
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• 제49권8호
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• pp.821-829
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• 2006

Hemophilia is the most common coagulation disorder. It has a long history. Hemophilia A is caused by FVIII gene mutation, and hemophilia B by FIX gene mutation. Those genes are located on X chromosome long arm. Bleedings in hemophiliacs predominantly occur in joints and muscles. Because those site are insufficient in tissue factor to induce hemostasis. Among joints knee, ankle and elbow are most frequently affected because their synovial structure is vulnerable to injury compared to other joints. Hemophilia is diagnosed with factor assay. Severe hemophilia is below 1% of FVIII : C, moderate between 1% and 5%, mild over 5%. Carrier detection and prenatal diagnosis have been conducted with RFLP-based linkage analysis and DNA sequencing. Mainstay of treatment is factor replacement therapy so far. Bleedings can be controlled by infusion of factor concentrates. Hemophilc arthropathy and muscle contracture are representative sequelae. Complications of facotor replacement therapy are inhibitor development and infections. Hemophiliacs with inhibitor should be managed with large dose factor concentrate, bypassing agent, ITI and immunosuppression. Ultimately, hemophilia could be cured by gene therapy.

• 대한족부족관절학회지
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• 제23권4호
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• pp.212-215
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• 2019

Symptomatic neuromas after amputation can be troublesome to treat and make it difficult to properly fit a brace. Surgical management is required when conservative management such as prosthetic socket modification or local injections fail. However, small cutaneous nerves adhere to adjacent soft tissue and they are difficult to locate. The authors suggest that ultrasonography guided tattoo localization using a charcoal suspension is useful to find a visually indistinguishable neuroma.

• 한국의류학회지
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• 제17권4호
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• pp.648-662
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• 1993

The summarized findings resulted from experiments and investigation are suggested as follows ; The analysis of measurements on the lower limb movements : For this experimentation, data was collected from three hundred and eighty female, age 19 to 23, who answered five lower limb movements(M1~M5). The statistics show that the order of the expansion ratio is gluteal area-length/knee-girth/back-line/knee-depth/thigh-depth/hip-girth, from the highest to the lowest in all movements. When comparing the correlation coefficient of the measurements, the values of the correlation coefficient of the height and the length items are very low, but those of the girth, the breadth, and the depth items are relatively high and those of the waist and the hip items are highest. For more sophisticated analysis, the factor analysis was conducted on the lower limb movements. Four factors were classified on the factor load by the "varimax rotation" method. Each movement shows the most important factor differently, as follows ; the most important factor in M1 is "the shape factor of lower limb below hip-line", that in M2 is "the cross-sectional shape factor", that in M3 is "the size factor of abdominal and loins region", and those in M4 and M5 accord with the interpretation of M3. When the investigation of the estimated function was conducted, in the selectional case of representative items on the slacks construction, it found that it would be better to add abdomen and thigh items as important considerations to waist girth, hip girth and crotch length.

• 한국운동역학회지
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• 제16권4호
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• pp.61-71
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• 2006

The purpose of this study was to compare kinematic characteristics on the limbs at 3 different walking speed during the energy and the normal walking. Eight subjects performed energy walking and normal walking at the slow speed(65 beats/min), the normal speed(115beats/min), the fast speed(160 beats/min). The 3-d angle was calculated by vector projected with least squares solution with three-dimensional cinematography(Motion Analysis corporation). The range of motion was calculated on the trunk, shoulder, elbow, hip, knee joint. The results showed that stride length was no difference of the two walking pattern. The duration of support phase was also no difference of the two walking pattern. The range of motion of shoulder joint significantly increased in the sagittal and frontal planes, and the range of motion of elbow joint significantly increased as the energy walking. The range of motion of hip joint had no significant difference in the any planes in changing of walking speed. But the most remarkable difference of the two walking patterns revealed at the trunk. The range of flexion/extension angle had significant increasing $2.36^{\circ}$ at normal speed, and the range of the right/left flexion angle had significant increasing below $4^{\circ}$ at the 3 walking speed, and The range of rotation angle had significant increasing $7.35^{\circ}$, $9.22^{\circ}$, respectively at the normal and slow speed. But there was no significant difference of range of motion at the hip and knee joints between energy walking and normal walking.

• 한국운동역학회지
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• 제15권4호
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• pp.13-24
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• 2005

The purpose of this study was to compare kinematic data between experts and novices, and identify difference kinematic parameters changing direction to kick in penalty kick of soccer play. Novice subjects were 5 high school students Who has never been experienced a soccer player, and expert subjects were 5 competitive high school soccer players. The 3-d angle was calculated by Euler's Angle by inertial axis and local axis with three-dimensional cinematography. Kinematic parameters in this study consisted of angles of knee joints, hip joints, lower trunk and upper trunk when the support foot was contacted on ground and kicking foot impacted the ball. The difference of angle of knee joints in the flexion/extension was insignificantly showed below $4{\sim}9^{\circ}$ in groups and directions of ball at the time of support and impact. But the difference of angle of hip joint was significant in groups and directions of ball at the time of support and impact. Specially the right hip joint of experts were more flexed about $12^{\circ}$($43.99{\pm}6.17^{\circ}$ at left side, $31.87{\pm}4.49^{\circ}$ at right side), less abducted about $10^{\circ}$ ($-31.27{\pm}4.49^{\circ}$ at left side, $-41.97{\pm}6.67^{\circ}$ at right side) at impact when they kicked a ball to the left side of goalpost. The difference of amplitude angle in the trunk was significantly shown at upper trunk not lower trunk. The upper trunk was external rotated about $30^{\circ}$ (novice' angle was $-16.3{\pm}17.08^{\circ}$, expert's angle was $-43.73{\pm}12.79^{\circ}$) at impact. Therefore the significant difference of kinematic characteristics could be found at the right hip joint and the upper trunk at penalty kick depending on the direction of kicking.

• Archives of Plastic Surgery
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• 제48권6호
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• pp.691-698
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• 2021

Background The reverse sural artery (RSA) flap is widely used for lower extremity reconstruction. However, patients sometimes suffer from donor site complications such as scar contracture and paresthesia, resulting in dissatisfaction with the aesthetic outcomes. This study investigated the characteristics of donor site morbidity associated with RSA flaps and described our experiences of dealing with complications by performing resurfacing surgery using thoracodorsal artery perforator (TDAP) flaps. Methods From April 2008 to August 2018, a total of 11 patients underwent contracture release and resurfacing surgery using TDAP flaps due to donor morbidity associated with RSA flaps. All affected donor sites were covered with a skin graft, the most common of which was a meshed split-thickness skin graft (six cases). Results Eight of the 11 patients (72.7%) suffered from pain and discomfort due to scar contracture, and seven (63.6%) complained of a depression scar. The donor sites were located 6.3±4.1 cm below the knee joint, and their average size was 140.1 cm². After resurfacing using TDAP flaps, significant improvements were found in the Lower Extremity Functional Scale (LEFS) scores and the active and passive ranges of motion (AROM and PROM) of the knee joint. The LEFS scores increased from 45.1 to 56.7 postoperatively (P=0.003), AROM increased from 108.2° to 118.6° (P=0.003), and PROM from 121.4° to 126.4° (P=0.021). Conclusions Planning of RSA flaps should take into account donor site morbidity. If complications occur at the donor site, resurfacing surgery using TDAP flaps achieves aesthetic and functional improvements.

• 대한족부족관절학회지
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• 제6권1호
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• pp.80-85
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• 2002

Purpose: This study is to assess the involvement of vessels in lower extremity in diabetics, using color doppler ultrasonogram. Materials and Methods: Arteries of both lower extremities were divided into 3 groups-large vessel (above-knee arteries), popliteal vessel, and small vessel(below-knee arteries) -, and evaluated using color doppler ultrasonogram in 60 diabetics. In color doppler ultrasonogram, the wave forms of all vessels were divided into 5 grades; grade I was triphasic wave form, grade II was spectral broadening form, grade III was monophasic wave form, grade IV was pulsus tardus et parvus form, grade V was absence of wave. Grade III, IV, V were grouped into vessel obstruction. We reviewed the correlationships among the degree of the peripheral vascular involvement, duration of dibetes, existence of bilaterality, types of dibetes. Results: Bilateral involvement was high in both lower extremity. Luminal stenosis, vascular calcification and vessel obstruction were high incidence in the patients over ten years of diabetic duration. Prevalence of vascular calcification and vessel obstruction were high in the small vessel of ankle level. But, insulin injection was not related to the incidence of vascular abnormality. Conclusion: Color doppler ultrasonogram seems to be useful for evaluation of peripheral vascular status, decision making for necessity of additional test, periodic follow -up tool in diabetes patients.

• 대한의용생체공학회:의공학회지
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• 제19권5호
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• pp.519-530
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• 1998

본 논문에서는 하지 전단 환자의 보행 성능을 개선하고, 활동성을 증대시긴 목적으로 에너지 저장형 의족의 유연 용골 선계를 위한 기초 연구를 수행하였다. 문헌에서 얻을 수 있는 2차원 시상면에서의 정성걸음새와 인체측정 데이터를 분석하여, 의족의 유연 용골 기초 구조 모델을 제시하였다. 기초 구조 모델은 단순한 빔과 선혈 회전 스프링 ·댐퍼로 구성되었다. 고강도 경량 소재를 의족의 유연 용골 기초 구조에 적용하기 위해 탄소섬유 강화 복합재료를 용골의 기초 구조 소재로 선정하였다. 빔의 형상 변화에 따른 복원변형에너지를 유한요소해석에 의해 계산해내고, 빔형상 변화가 설계변수가 될 수 있음을 제시하였다. 복원변형에너지를 많이 저장할 수 있는 유연 용골 구조의 설계를 위해, 직교배열표를 이용한 조지전 시뮬레이션 계획을 세우고, 유한요소 프로그램인 ABAQUS를 이용하여 계획에 따른 유한요소해석을 수행하고, 분산활석을 통해 효과적인 에너지 저장형 의족의 유연 용골 구조를 얻어냈다. 유연 용골 구조를 이용한 의족걸음새의 동적 시뮬레이션 모델을 완성하고, 한 보행 사이클 동안의 동적 해석을 수행하였다. 그리하여 의족 시스템 개발을 위한 효과적 설계 과정이 제시되었다.

• Journal of Acupuncture Research
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• 제17권3호
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• pp.125-139
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• 2000

Study of the fourteen meridians that include name of P'ung(風) point. The results were summarized as follows. 1. Pyongp'ung(秉風) is located middle of the supraspinatous fossa(Small intestine Meridian, 手太陽小腸經). we can cute the local area disease and also use to cure the pathway of the Arm greater yang small intestine which is attacked by P'ung(風) disease. 2. Yep'ung(翳風) is located behind the lobule of the auricle, in the depression between the mastoid process and the mandible(Triple Energizer Meridian, 手少陽三焦經). we can cure the local area disease especially hyper yang disease and also use to cure the pathway of the Arm lesser yang triple energizer which is attacked by P'ung(風) and Yo'l(熱) disease. 3. P'ungmun(風門) is located 1.5 chon beside the lower end of the spine of the second thoracic vertebra(Bladder Meridian, 足太陽膀胱經). we can cure the local area disease and also use to cure the pathway of the Leg greater yang bladder which is attacked by P'ung(風) disease. 4. P'ungbu(風府) is located 1 chon above the middle of natural line of the hair at the back of the head, in the depression below the occiptal protuberance(Governor meridian, 督脈). It connects (Liver meridian, 足厥陰肝經) and Yin Link Vessel(陽維脈). we can cure the rigidity and pain in head and nape which is related Yin Link Vessel(陽維脈). 5. P'ungshi(風市) is located on the lateral part of the thigh, 7 hon above the patella(From the greater trochanter to the knee joint is 19 chon, Gallbladder Meridian (足少陽膽經). we can cure the local area disease(leg, knee, etc). 6. P'ungji(風池) is located Below the occipital bone, in the depression on the outer part of the trapezius muscle(Gallbladder Meridian, 足少陽膽經) on a level with P'ungbu(風府) (Governor vessel, 督脈). we can cure the local area disease and also use to cure the pathway of the Leg lesser yang gall bladder which is attacked by P'ung(風) disease.

• 한국방사선학회논문지
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• 제11권4호
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• pp.273-278
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• 2017

적외선 체열검사를 시행한 $L_4-L_5$ 추간판 탈출증 환자의 45명 중 여자가 더 많았으며, 연령은 50대가 가장 많았다. 피절 분포표에 따라 측정한 결과, ${\chi}^2-test$에서는 성별과 나이에 따라서 유의한 차이를 보이지 않았다(p>0.05). $L_4-L_5$ 추간판 탈출증 환자의 ROI 온도를 측정한 부위는 후면 오른쪽 정강이뼈 뒤쪽의 온도가 가장 높았으며, 후면 왼쪽 정강이뼈 뒤쪽-전면 오른 무릎아래-전면 왼 무릎아래의 순이었다. 측정부위에 따라 유의한 차이를 보였다(p<0.05). 나이에 따라서는 ${\chi}^2-test$에서는 나이에 따라 0.030을 유의한 결과를 보였다(p<0.05). 정상인의 평균 ROI 온도는 $31.20{\pm}0.58$, 환자의 평균 ROI온도는 $30.30{\pm}0.50$으로 온도 차이는 $0.66{\pm}0.59$로 나타났다. 환자의 ROI온도가 정상인과 차이가 나는 지 알아보기 위한 일 표본 t-검정결과, 유의확률이 0.03으로 0.05보다 작으므로 환자의 ROI온도는 $31.20{\pm}0.58$보다 낮게 나타났다(p<0.05). 앞으로의 과제는 온열환경에 따른 보정 테이타의 처리기술과 그것을 이용한 새로운 온열 인덱스의 개발이 필요하다고 사료된다. 따라서 데이타의 보정을 줄이기 위해서는 적외선 체열 진단 시 전처치가 무엇보다 중요하며, 이를 검사하는 방사선사는 환자를 측정 시 주의 깊은 관찰과 배려가 요구된다.