1.The Role of Anitiplatelet Antibody and the Therapeutic Effect of High-Dose I.V. gamma-globulin in Childhood Idiopathic Thrombocytopenic Purpura.
Kyu Chul CHOI ; Sang Ho PARK ; Yong Mook CHOI
Journal of the Korean Pediatric Society 1988;31(2):212-219
No abstract available.
gamma-Globulins*
;
Purpura, Thrombocytopenic, Idiopathic*
2.Idiopathic Thrombocytopenic Purpura in Children.
Kyu Chul CHOI ; Sang Ho PARK ; Yong Mook CHOI
Journal of the Korean Pediatric Society 1987;30(6):664-670
No abstract available.
Child*
;
Humans
;
Purpura, Thrombocytopenic, Idiopathic*
3.Expression of Osteocalcin and Transglutaminase C during Fracture Healing and Distraction Osteogenesis in Rat's Tibia
In Ho CHOI ; Sang Cheol SEONG ; Myung Chul LEE ; Gye Yong SONG ; Sang Chul PARK
The Journal of the Korean Orthopaedic Association 1994;29(5):1311-1325
Incorporation of bromodeoxyuridine(BrdU) and expression of osteocalcin and transglutaminase C(TGase C) during fracture healing and distraction osteogenesis were investigated in the rat with immunohistochemical studies. Transverse osteotomy was made at the proximal tibia. Bilateral dynamic mini-fixator was applied to immobilize the fracture and also to lengthen the leg. Distraction was started, at the rate of 0.25 mm twice daily, from the 4th operative day and continued for 7 days. Animals were killed for immunohistochemical studies on the 1st, 3rd, 5th, 7th, 14th, 28th, 42nd, 56th, and 84th day after osteotomy or distraction. Longitudinal histologic sections of the healing bone were stained with monoclonal antibodies against BrdU, osteocalcin, and TGase C. Radiologically, complete fracture healing was achieved in 6 weeks after osteotomy, while neo-osteogenesis was successfully achieved in the distracted gap in 7 weeks after the completion of distraction, During active healing stage of the fracture and distraction osteogenesis, BrdU was mainly expressed in the perisoteal and endosteal osteoprogenitor cells while osteocalcin was expressed in the proliferating osteoprogenitor cells, osteoblast, osteocyte, osteoid matrix, and chondrocyte. The expression of BrdU and osteocalcin in the mesenchymal cells from the surrounding soft tissues around the osteotomy site was negligible. At the site of enchondral bone formation, TGase C was expressed in the cytomplasm of more centrally located and matured chondrocytes, while oseocalcin was mainly expressed in the cytoplasm of peripherally located chondrocyte. These findings may suggest that osteocalcin participates in early phase of enchondral bone formation, while TGase C in the late phase, suggesting the role of TGase C in matrix stabilization. At the site of intramern-branous bone formation, the expression of TGase C was weakly positive in both osteoprogenitor cell and osteoblast. The reason of the difference in the expression of TGase C between the enchondral bone formation and intrarnembranous bone formation should be further investigated. Fracture healing and distraction osteogenesis was predominantly induced by intramembranous ossification rather than enchondral ossification. Periosteal osteoprogenitor cells appeared to initiate and to lead bone formation after osteotomy and distraction. Active proliferation and differentiation of osteoprogenitor cell ocurred during entire periods of distraction. Also, active osteoid matrix formation and mineralization was started from the 5th day of distraction and continued thereafter for further 4 weeks after completion of the lengthening. These findings indicate that preservation of the periosteum is essential to achieve successful fracture healing and distraction osteogenesis.
Animals
;
Antibodies, Monoclonal
;
Bromodeoxyuridine
;
Chondrocytes
;
Cytoplasm
;
Fracture Healing
;
Leg
;
Miners
;
Osteoblasts
;
Osteocalcin
;
Osteocytes
;
Osteogenesis
;
Osteogenesis, Distraction
;
Osteotomy
;
Periosteum
;
Rats
;
Tibia
4.CLINICAL ANALYSIS OF REFLEX SYMPATHETIC DYSTROPHY AFTER HAND INJURIES.
Sang Hyun WOO ; Byoung Chul CHOI ; Jung Hyun SEUL
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1997;24(2):326-339
Reflex sympathetic dystrophy(RSD) defines as a chronic pain syndrome with sympathetic manifestations that afflicts individuals who haute suffered a trauma to the hand. Persistent pain and dysfunctions of the hand are frequently overlooked by the surgeons. The exact pathophysiology of RSD is not known but severity of injury and prolonged immobilization of the joints are considered as resonable causes on the retrospective studies. The diagnosis of reflex sympathetic dystrophy is based on clinical manifestations, simple X-ray and three-phase bone scan. Confirmative diagnosis absolutely depends on the presence of a diffusely abnormal pattern of uptake in phase III in a patient haying pain with underlying cause and strong clinical signs of sympathetic overactivities. As with most disease processes, early diagnosis and treatment is a goal of management of RSD. Surgical restoration of anatomical structures such as tendon, nerve and joint goes ahead of any kind of procedures and it made the VAS pain score decrease from 7.8 to 3.4 in 16 patients. Also, decrease of pain could be achievable with sympathetic or stellate ganglion block with steroid medication. Active physical therapy after surgery is also verb helpful to functional recovery of the hands. Once the appropriate diagnosis is made, combined therapy composed of surgical restoration of anatomical structure, physiotherapy and steroid medication with sympathetic block will be free from pain and produce early functional recovery.
Chronic Pain
;
Diagnosis
;
Early Diagnosis
;
Hand Injuries*
;
Hand*
;
Humans
;
Immobilization
;
Joints
;
Reflex Sympathetic Dystrophy*
;
Reflex*
;
Retrospective Studies
;
Stellate Ganglion
;
Tendons
5.A case of primary hyperparathyroidism caused by parathyroid adenoma.
Sang Ill CHOI ; In Chul KIM ; Sung Do LEE
Journal of the Korean Surgical Society 1992;43(5):776-781
No abstract available.
Hyperparathyroidism, Primary*
;
Parathyroid Neoplasms*
6.A Clinical Study on Pathologic Fractures
Han Koo LEE ; Jang Seok CHOI ; Sang Chul SUNG
The Journal of the Korean Orthopaedic Association 1977;12(3):439-445
Pathologic fracture occurs in a bone with preexisting stuctual weakness. The author reviewed 30 cases of pathologic fractures in which admission record and X-ray finding was well preserved among 53 cases admitted patients in the department of Orthopaedic Surgery, Seoul National Universty Hospital for 10 years from 1967. The results were as follows: 1.Age & Sex incidence showed even distribution. 2. The most frequent involved site was femur (40%) 3. The underlying etiology was as follows: 2 chronic osteomyelitis 1 homophilia 7 benign tumor 20 malignant tumor 4. metastatic tumor was the most frequent cause in 30 cases. 5. Treatment was as follows: Conservative treatment 4 cases Surgery 21 cases.
Clinical Study
;
Femur
;
Fractures, Spontaneous
;
Humans
;
Incidence
;
Osteomyelitis
;
Seoul
7.Repair of Neglected Rupture of the Achilles Tendon using V-Y Tendinous Flap
Ki Soo KIM ; Sang Sik MIN ; Suk Chul CHOI
The Journal of the Korean Orthopaedic Association 1982;17(5):1039-1043
The 6 patients with neglected rupture of the Achilles tendon were treated by end to end anastomosis using the V-Y tendinous flap originated by Abraham in 1975. A tendinous flap was developed over the tendon by making an inverted V incision, which was then repaired in a Y fashion. The postoperative results were satisfactory with no functional disability of the ankle and with recovery of muscle strength for periods of 8 months to 15 months, but slight limited dorsiflexion of the ankle in two cases were noticed. The advantages of this method are: 1. Optimum functional recovery. 2. Recovery of muscle strength and tendon contour. 3. Prevention of late stretching or possible rupture of the healed tendon at the rupture site.
Achilles Tendon
;
Ankle
;
Humans
;
Methods
;
Muscle Strength
;
Rupture
;
Tendons
8.A study of serologically confirmed measles.
Sang Mook CHOI ; Chang Soo OH ; Sang Chul PARK ; Chang Hwi KIM ; Sang Jhoo LEE
Journal of the Korean Pediatric Society 1992;35(4):508-514
No abstract available.
Measles*
9.Dorsal Nerve Somatosensory Evoked Potential Test for Localizing the Lesion in Neurogenic Erectile Dysfunction.
Won Jae YANG ; Young Deuk CHOI ; Young Chul CHOI ; Sang Yol MAH ; Hyung Ki CHOI
Korean Journal of Urology 2000;41(5):645-649
No abstract available.
Erectile Dysfunction*
;
Evoked Potentials, Somatosensory*
;
Male
10.Evaluation of sonographic and radiographic findings of pelvic masses
Hyo Seon CHUNG ; Chul Uk CHOI ; Yong Chul KIM ; Kyoung Ja SHIN ; Sang Chun LEE
Journal of the Korean Radiological Society 1985;21(5):826-833
Ultrasonographic and radiographic findings in 72 cases of pelvic masses which have been provedhistopathologically were analyzed. The results were as follows; 1. Among 72 cases, 28 cases were uterine massesand 44 cases were adnexal masses. 2. Pathologic accuracies of ultrasonographic diagnosis were 64.3% in uterinemasses, 70.5% in adnexal masses, and 68.1% in all pelvic masses. 3. Plain or IVP findings were not specific indiagnosis and showed secondary mass effects or functional disturbances. 4. Because of its high accuracy ofpathologic diagnosis and safety, ultrasonography can be regared as the most valuable and preferential study. Butin cases of cystic myomas, endometrioses, cystic missed abortions and huge masses, the accurate diagnoses weredifficult.
Abortion, Missed
;
Diagnosis
;
Endometriosis
;
Female
;
Myoma
;
Pregnancy
;
Ultrasonography