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Successful Treatment of Failed Ulnar Osteotomy by Concurrent Radial Osteotomy in a Forearm Malunion
공현식,이승준,이영호,백구현 대한정형외과학회 2011 대한정형외과학회지 Vol.46 No.6
We present a patient with malunion of the ulna and radius, who experienced 2 consecutive healing failures after osteotomy of the ulnar malunion only. The purpose of the surgery was for cosmetic reasons. Healing was fi nally obtained when a seemingly minimal malunion of the radius was corrected as well. This case suggests concurrent correction of both bone forearm malunion may be required to ensure satisfactory healing.
실장산(實腸散)이 위장관(胃腸管)에 미치는 영향(影響)
공현식,유봉하,박동원,유기원,Kong, Hyeon-Sig,Rhu, Bong-Ha,Rark, Dong-Won,Ryu, Ki-Won 대한한방내과학회 1994 大韓韓方內科學會誌 Vol.15 No.2
In order to investigate the efficacy of Siljangsan by using the experimental animals, the action of gastric juice secretion, antiulcer. transport rates in the intestine and anti-cathartic action were studied. The following results were obtained. 1. Preventive effects on ulcer induced by pylorus-ligated and Ethanol-HCI were recognized 2. Suppression effects on gastric juice secretinon, free of acidity and total acidity were recognized, but pepsin output was not recognized. 3. For the transport ability of intestine of mice, the ability of small intestine was activated and large intestine was suppressed in the group administrated 4. Anti-cathatic action of mice induced by castor oil was recognized. According to above results, effect based on oriental medical reference was consistent with the actual experimental effect.
Dupuytren's Disease: the Vikings Disease in Koreans
공현식 대한의학회 2018 Journal of Korean medical science Vol.33 No.31
Dupuytren's disease (DD, or Dupuytren's contracture) is a condition in which one or more fingers (usually ring or small fingers) become progressively bent in a flexed position due to a thick, abnormal fibrous nodule or cord formation in the palmar fascia of the hand (Fig. 1). The metacarpophalangeal joint is usually involved first and later the proximal interphalangeal joint. DD is usually painless and progresses insidiously. Patients with DD usually tolerate the contracture well and present for treatment when they start to poke themselves in the eye when washing their face. Sometimes patients are thankful to be reassured that they did not have cancer. While surgery can improve the contracture, recurrence of some degrees is quite often, about 30%–50% after 5 years.
위암(胃癌)에 대(對)한 문헌고찰(文獻考察)-(근래(近來) 잡지(雜誌)를 중심(中心)으로)-
공현식,유봉하,박동원,유기원,Kong, Hyeon-Sig,Rhu, Bong-Ha,Park, Dong-Won,Ryu, Ki-Won 대한한방내과학회 1994 大韓韓方內科學會誌 Vol.15 No.1
This study was performed to investigate the gastric cancer through the journal of oriental medicine since 1990. The following results have been obtaied. 1. The Herb-medication in Gastric Cancer was composed to the oral-method and the injection-method. but, the oral-method was major and the injection-method rarely used. 2. In the treatment of Gastric Cancer, the Herb-medication that copperated with the operation and chemotherahpy was much more used 3. In the oriental medical therapy, the therapy for invigoration(補法) was common used. and the therapy for regulating vital energy(理氣), removing blood stasis(祛瘀), relieving pain(止痛), clearing away the heat evil (淸熱), removing toxic material(解毒) was used. 4. The following Herb was much more used to threat the Gastric Cancer.
진행된 키엔벡 병에서의 방형회내근 유경 요골 피판을 이용한 관절성형술의 중장기 결과
공현식,백구현,이영호,김세훈,조영재,정문상,Gong, Hyun-Sik,Baek, Goo-Hyun,Lee, Young-Ho,Kim, Sae-Hoon,Cho, Young-Jae,Chung, Moon-Sang 대한미세수술학회 2006 Archives of reconstructive microsurgery Vol.15 No.2
The purpose of this study was to analyze the mid to long-term clinical and radiological outcome of vascularized pronator quadratus-wrapped radial bone flap arthroplasty for symptomatic advanced $Kienb{\ddot{o}}ck's$ disease. Between 1982 and 2000, 41 cases of advanced $Kienb{\ddot{o}}ck's$ disease were treated with vascularized pronator quadratus wrapped radial bone flap arthroplasty. There were 17 men and 24 women, with a mean age of 39 years at the time of operation. According to Lichtman's classification, there were 13 stage IIIb and 28 stage IV patients. The duration of follow-up averaged 6.1 ($3{\sim}22$) years. We assessed the clinical outcome by subjective pain and active range of motion of the wrist, and evaluated the radiologic outcome by using carpal height ratio and radioscaphoid angle. Postoperatively, all patient reported an improvement in their symptoms. The mean active extension and flexion were improved by $9^{\circ}$ and $6^{\circ}$, respectively (p<0.05). The carpal height ratio was decreased from a mean of 0.52 to 0.48, and the radioscahpoid angle was increased from a mean of $61^{\circ}$ to $66^{\circ}$, but the differences were not significant statistically. Vascularized pronator quadratus-wrapped radial bone flap arthroplasty improves the wrist motion and may prevent serious carpal collapse in advanced $Kienb{\ddot{o}}ck's$ Disease.
조성경사를 갖는 다층 Zr(Y,Ce)O_2 TZP/뮬라이트 복합체의 제조와 특성
공현식,전병세 경남대학교 신소재연구소 2002 신소재연구 Vol.14 No.-
조성경사를 갖는 다층 Zr(Y,Ce)O_2, TZP/Mullite계 세라믹복합체를 가압여과법에 의해 제조하고, 그 기계적 성질을 검토하였다. 수축률, 밀도, 4점 꺽임강도값 및 파괴인성값을 측정하였다. 다층물질의 4점 꺽임강도는 350∼400 MPa로서 단상일 경우보다 높게 나타났으며, 파괴인성값은 5.5∼6.0 MPa·m^1/2 정도였다. The multi-layered Zr(Y,Ce)O_2 TZP/Mullite composite materials with compositional gradient were prepared by filter pressing method and its mechanical properties were characterized. The rate of shrinkage, density, the four-point bend strength and fracture toughness were measured. The four-point bend strength of the muti-layer materials war 350∼400 MPa, and the fracture toughness was 5.5∼6.0 MPa·m^1/2
중족골두 무혈성 괴사에서 생체흡수성 핀으로 고정한 배측 쐐기 절골술
공현식,백구현,김지형,정문상,Gong, Hyun-Sik,Baek, Goo-Hyun,Kim, Ji-Hyeong,Chung, Moon-Sang 대한족부족관절학회 2005 대한족부족관절학회지 Vol.9 No.1
Purpose: To present the procedure and results of dorsal wedge osteotomy fixated by bioabsorbable polyglycolide pins for the treatment of symptomatic Freiberg's disease. Materials and Methods: From January 1997 to December 2002, six patients with Freiberg's disease underwent dorsal wedge osteotomy of the metatarsal neck to bring the healthy plantar part of the metatarsal head into articulation. Bioabsorbable polyglycolide pins were used for the fixation and short-leg walking cast was applied for 4 weeks. Results: All patients returned to full daily activities without pain in three months after the operation. Radiographically, solid healing of the osteotomy was observed at average ten weeks. The active range of motion of the metatarsophalangeal joint increased by a mean gain of 30 degrees, and no complication such as displacement, osteolysis or sinus formation was observed. Conclusion: Dorsal wedge osteotomy fixated by bioabsorbable pins for patients with symptomatic Freiberg's disease is effective procedure that provides relatively early range of motion exercise and avoids second procedure for implant removal.
[구조강도부문] 다축 하중을 고려한 가속 내구 시험의 최적 조건 설정에 관한 연구
공현식(H. S. Gong),권종호(J. H. Kwon),이강용(K. Y. Lee),임종순(J. S. Im),김기훈(G. H. Kim) 한국자동차공학회 2000 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The accelerated testing technique using the equivalent load condition plays an important part in the automotive industry. However, the theoretical background and advantages of this technique have been on the rise recently. The environmental durability condition forms the foundation of the accelerated testing technique, so it is important to analyze the loading components and damage in service environment. We developed the GUI program for the determination of the accelerated testing condition under the multi-axial loading, and introduce the theoretical background and process for application of the program.