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증등도 및 중증 무지 외반증 치료에서 원위부 갈매기형 절골술의 적용
윤준오,이호승,류석우,이기원,오세관,Yoon, Jun-O,Lee, Ho-Seung,Leu, Suk-Woo,Lee, Ki-Won,Oh, Se-Kwan 대한족부족관절학회 2003 대한족부족관절학회지 Vol.7 No.2
Purpose: We assessed the treatment result of the distal chevron osteotomy in the patients with moderate to severe hallux valgus. Materials and Methods: In a total of 28 cases of hallux valgus in 20 patients, underwent distal chevron osteotomy between July 1999 and February 2001, were enrolled in this study. 21 cases were moderate and 7 cases were severe. The preoperative average hallux valgus angle and 1st-2nd intermetatarsal angle of the two groups were $31.5^{\circ}$, $15.8^{\circ}$ in moderate cases and $44.1^{\circ}$, $17.3^{\circ}$ in severe cases, respectively. Radiologic evaluation was done preoperatively, postoperatively and on the final follow-up visit using weight-bearing radiographic imaging to determine the hallux valgus angle and 1st-2nd intermetatarsal angle. Results: Radiographic evaluation revealed hallux valgus angle and 1st-2nd intermetatarsal angle in moderate cases to be $13.0^{\circ}$, $11.3^{\circ}$ (postoperatively and in severe cases $15.6^{\circ}$, $10.9^{\circ}C$, postoperatively. On final follow up, the results were $14.5^{\circ}$, $11.6^{\circ}$ in moderate cases and $18.3^{\circ}$, $11.9^{\circ}$ in severe cases, respectively. Conclusion: Distal chevron osteotomy can be usefully applied to the treatment of moderate to severe hallux valgus.
산혈증 유발 고칼륨혈증과 고칼륨혈증 유발 산혈증의 비교 연구
윤준오(Yoon, Jun-Oh),박춘옥(Park, Choon-Ok),황상익(Hwang, Sang-Ik),김종환(Kim, Chong-Whan),김우겸(Kim, Woo-Gyeum) 대한생리학회 1990 대한생리학회지 Vol.24 No.1
A comparative study of acid-base balance has been made between acidemia-induced hyperkalemia and hyperkalemia-induced acidemia. A group of rabbits was infused 0.1 N hydrochloric acid solution and metabolic acidosis was induced. Another group was administered 20 mM potassium chloride solution and hyperkalemia was induced. The third group was infused 0.1 N hydrochloric acid and 20 mM potassium chloride solution, simultaneously. Acid-base data and plasma potassium ion concentration were monitored every thirty minutes in these three groups of rabbits. Following results were obtained: 1 ) Along with the infusion of hydrochloric acid, acute metabolic acidosis was induced in the rabbits. Plasma bicarbonate ion concentration decreased primarily in this group. As a respiratory compensation, there was a tendency of reduction of arterial Pco<sub>2</sub>. The alteration of data became larger along with the amount of administration and the time elapsed. However, hyperkalemia was not so severe compared with the second group. 2) In potassium chloride infused group, plasma potassium ion concentration increased along with the time elapsed and the amount of infusion. And the alteration of acid-base data was parrallel to the level of potassium ion concentration, above all depression of pH was prominent. 3) Above data suggest that when acute metabolic acidosis was induced, exchange of intracellular potassium ion with extracellular hydrogen ion seems significant for the regulation of extracellular acid-base balance. And when hyperkalemia was induced with the infusion of potassium chloride solution, the exchange of intracellular hydrogen ion with extracellular potassium ion also seems significant for the regulation of extracellular potassium balance. 4) In the group of rabbits infused hydrochloric acid and potassium simultaneously, disturbances of acid-base balance and potassium balance were much more severe than two other groups. In these mixed disturbances, the process of compensatory mechanism might be inhibited and one disturbance might aggregate each other. 5) Through above data it has been postulated that in acid-base disturbance potassium balance can be sacrificed as a compensatory mechanism, and vice versa in disturbance of potassium balance. And our data also suggest that hydrogen ion and potassium ion are compensatory pair, one another.
골성 추지 (bony mallet finger)의 치료
윤준오 ( Jun O Yoon ),정문상 ( Moon Sang Chung ),박원경 ( Won Kyoung Park ) 대한외상학회 1988 大韓外傷學會誌 Vol.1 No.1
Mallet finger is a common deformity caused by injury to the extensor mechanism at the distal imer-phalangeal joint. A bony mallet finger is a similar injury, but it is associated with a fracture at the base of the distal phalanx. The various metbods advocated for the treatment of the bony mallet finger include neglect, splintage and operation. Open reduction to restore congruity of the joint surfaces has been recommanded. Because of the small size of the fracture fragement and the deforming pull of the terminal extensor tendon, inter-nal fixation is often frustraring. We have treated 7 cases of bony mallet finger with the mothod of figure of 8 tension band fixation using absorbable synthetic suture at the Deparhnent of Orthopedic Surgtery, Seoul National University Hospital from Jan. 1985 to Dec. 1986. With a stringent rating system there were five excellent and two good end results. Figure of 8 tension band fixation using absorbable synthetic suture was seemed to be one of the valuable methods in the treatment of bony mallet finger.