1.THE NEW CRUSH MODEL AND ITS PATENCY RATE ON THE RAT FEMORAL VESSELS.
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1997;24(2):257-263
A new crush anastomosis model which can be evaluated as crush energy was established on the femoral artery and vein of the rats weighing 250g on the average. The degrees of vessel injury were evaluated as crush energy. The arteries underwent the crush injury with the energy of 0.3J, 0.4J, 0.5J, while the reins were crushed with the energy of 0.2J, 0.3J, 0.4J respectively then the vessels in each group were divided and anastomoses by a standard microsurgical technique. Saline and heparin were used as a luminal topical agent and systemic one, which allowed contact with the damaged endothelium. The heparin treated group had a patency rate of 95%(0.3J), 87.5%(0.4J), 40%(0.5J) vs. 55%(0.3J), 15%(0.4J), 10%(0.5J) in the saline irrigated group in the femoral arteries, which had the patency rate of 82.5%(0.2J), 72.5%(0.3J), 42.5%(0.4J) vs. 35%(0.2J), 12.5%(0.3J), 7.5%(0.4J) in the saline irrigated group in the femoral vein at 1 day. There was a energy-related decrease in patency rate. These findings indicate that the crush model of 0.4J in the rat femoral artery, 0.3J in the rat femoral vein is a reliable and reproducible thrombosis model. The model described in this study is to be used to evaluate and assess the ability of antithrombotic agent in preventing thrombosis at the anastomotic site.
Animals
;
Arteries
;
Endothelium
;
Femoral Artery
;
Femoral Vein
;
Heparin
;
Phenobarbital
;
Rats*
;
Thrombosis
;
Veins
2.Mammaplasty by the periareolar "round block" technique.
Kyeong Sook CHO ; Chin Ho YOON ; Han Joong KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1993;20(5):1064-1071
No abstract available.
Female
;
Mammaplasty*
3.Experimental study on bone substitute by polyethylene with demineralized bone powder.
Sung Tack KWON ; Yoon Ho LEE ; Chin Whan KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1993;20(6):1187-1199
No abstract available.
Bone Substitutes*
;
Polyethylene*
4.Histologic study of chemical peel in guinea pig after pretreatment with tretinoin and tretinoin-combined pretreatment kit.
Won June YOON ; Heung Sik PARK ; Dong Jin LEE ; Chin Ho YOON ; Han Joong KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1998;25(6):988-996
The purpose of this study was to evaluate the histologic difference that occured after trichloroacetic acid(TCA) chemical peel in an animal model that was pretreated with Tretinoin alone or Tretinoin-based combined pretreatment kit. Eight Hartley white guinea pigs were used in our study. The dorsal skin of the guinea pigs was divided into six equal squares(2x2 cm). Upper two areas of these six were not pretreated, middle two areas were pretreated for 4 weeks with Tretinoin alone and lower two areas were pretreated for 4 weeks with Tretinoin-based combined kit. Each guinea pig underwent chemical peel with 50% TCA. The wounded areas were biopsied at post-peeling 3 weeks and 6 weeks. The histology revealed that those animals pretreated with combined kit healed quicker than the animals pretreated with Tretinoin alone. This study implies that if patients are treated with Tretinoin-based-combined pretreatment kit before undergoing chemical peel, the pretreatment time will be shortened.
Animals
;
Guinea Pigs*
;
Guinea*
;
Humans
;
Models, Animal
;
Skin
;
Tretinoin*
;
Wounds and Injuries
5.CLINICAL STUDY ABOUT THE EFFECT OF THE PREGNANCY ON THE CAPSULAR CONTRACTURE AROUND BREAST IMPLANTS.
Won Bae BAE ; So Ra KANG ; Dong Heon LIM ; Chin Ho YOON ; Yoon Ho LEE ; Han Joong KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1997;24(6):1508-1515
No abstract available.
Breast Implants*
;
Breast*
;
Contracture*
;
Pregnancy*
6.A clinical study of donor site care in the split thickness skin graft with thrombin application.
Kang Won LEE ; Hong Mi YOUCK ; Chin Ho YOON ; Han Joong KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1991;18(3):528-532
No abstract available.
Humans
;
Skin*
;
Thrombin*
;
Tissue Donors*
;
Transplants*
7.Comparative study between using co2-laser(ryj-II) and classic method in frenulotomy.
Chin Ho YOON ; You Hwan RHO ; Heung Sik PARK ; Han Joong KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1998;25(8):1475-1479
Tongue-tie is recognized to have adverse influences in sucking and swallowing(infant feeding), growth of jaw, speech, and mechanical movement due to restrictions of tongue mobility. We used CO2-laser(RYJ-II) in frenulotomy of tongue-tie patients with expectations in reducing intraoperative bleeding, postoperative pain and edema. We operated 32cases of the patient group utilizing CO2-laser(RYJ-II) in frenulotomy, 20 cases of the patient group using classic frenulotomy method with scalpel. We compared following variables in two groups: intraoperative bleeding, operation time and postoperative pain and edema. Frenulotomy using CO2-laser(RYJ-II) resulted in reduction in bleeding, postoperative pain and postoperative edema, while reduction in operation time and wound healing time were not confirmed in this study. Authors suggest the ideal suitability of CO2-laser(RYJ-II) in frenulotomy of tongue-tie patients with a brief review of literature.
Edema
;
Hemorrhage
;
Humans
;
Jaw
;
Pain, Postoperative
;
Tongue
;
Wound Healing
8.Frontalis muscle transfer technique through single inscision in blepharoptosis.
Dong Hoon WOO ; Dong Hun LIM ; Chin Ho YOON ; Han Joong KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1991;18(4):708-715
No abstract available.
Blepharoptosis*
9.Analysis of nasal septal fracture combined in nasal bone fracture using computerized tomography.
Jin Ee KIM ; Heung Sik PARK ; Chin Ho YOON ; Han Joong KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1998;25(5):852-859
There have been several reports that nasal bone fractures are inadequately managed. They are probably due to poor understanding of the pathophysiology of nasal bone fracture and absence of the accurate diagnostic method. And there has been little adequate comprehensive classification of nasal bone fracture and nasal septal fracture. We examed 132 patients sustaining nasal bone fracture using computerized tomography. Fracture line, deviation, depression, associated skeletal deformities and the nasal septum were clearly identified. We compared our results with Murray & Maran's classification of nasal bone fracture. We found that they revealed almost same results and computerized tomography was good method for diagnosis of nasal septal fracture. The computerized tomography will be helpful for accurate diagnosis and preperative planning of the correction of nasal bone and septal fracture.
Classification
;
Congenital Abnormalities
;
Depression
;
Diagnosis
;
Humans
;
Nasal Bone*
;
Nasal Septum
10.Histopathologic study of soft palate muscles in cleft palate (II)>.
Hyun Chul KIM ; Suk Wha KIM ; Yoon Ho LEE ; Chin Whan KIM ; Doo Hyun CHUNG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1992;19(4):538-548
No abstract available.
Cleft Palate*
;
Muscles*
;
Palate, Soft*