1.Nine cases of multiple symmetric lipomatosis.
Young Soon HYUN ; Young Joo LEE ; Chang Sig CHOI
Journal of the Korean Surgical Society 1991;40(1):94-106
No abstract available.
Lipomatosis, Multiple Symmetrical*
2.Clinical review of surgical procedures in patients over 65 years of age.
hyun hun SHIN ; Dae Hwa CHOI ; Chang Woo LEE
Journal of the Korean Surgical Society 1993;44(6):839-846
No abstract available.
Humans
3.A case of palatally impacted incisor treated by onlay technique with surgical exposure.
Kwang Hyun KIM ; Mok Kyun CHOI ; Chang BAI
Korean Journal of Orthodontics 1974;4(1):57-61
The patient, a girl of 19 years in good health, had a class I malocclusion. The maxillary left centra1 incisors and both lateral incisors had already erupted. But the space for the right central incisor was partially closed by the mesial drifting of the neighboring teeth. The caused a shift in the midline and a cross-bite relation on the incisors. X-ray examination revealed the presence of the right central incisor in the alveolar bone and odontoma just above the crown of the right central incisor. After enough space for the impacted incisor was created in the dental arch with a open-coil spring the rectangular incision was made. Removing the odontoma uncovered the flat surface of the labial aspect of the incisor. During the tooth had erupted of its own accord, any unnecessary force had been imposed on the tooth. When it was decided that the tooth should be brought out by the mechanical device, the gold cast onlay with hook was used and run a light elastic between this hook and the main arch wire. Finally the tooth was brought down to the arch level. The result was excellent. Fortunately the esthetic problem and any detrimental effects on the psychological make-up could be avoided.
Crowns
;
Dental Arch
;
Female
;
Humans
;
Incisor*
;
Inlays*
;
Malocclusion
;
Odontoma
;
Tooth
4.The radiographic findings of cerebello-pontine angle lesions
Young Hwan JUN ; Byung Ihn CHOI ; Kee Hyun CHANG
Journal of the Korean Radiological Society 1983;19(2):314-323
Thirty-five cerebello-pontine angle lesions were diagnosed with simple skull X-ray, CT, and angiography atSeoul National University Hospital from Sept. 1978 through Aug. 1982. The radiographic findings were analysed withemphasis on the differential points of CT among the major three cerebello-pontine angle tumors; acousticneurinoma, meningioma and epidermoid. The results are as follows; 1. Among the 35 cases of cerebello-pontine anglelesions, 19 cases were acoustic neurinoma. 4 cases miningioma, 4 cases epidermoid, 2 cases metastasis, 1 caseschoroid plexus papilloma, 1 case arteriovenous malformation, and 3 cases intra-axial posterior fossa tumors. 2.The characteristic radiographic findings of acoustic neurinoma were windening of internal auditory canal, petrousbone erosion, posterior extension of tumor at the level of internal autidory canal, hypo or isodense mass onpre-contrast CT with high enhancement after intravenous contrast infusion, and cystic change within the mass. 3.Meningioma shows anterior extenstion of the lesion at the level of internal auditory canal, broad base and obtuseangle sign of the lesion with petrous bone, hyperdense mass on precontrast CT. with highly homogeneous enhancementafter intravenous contrast infusion. 4. Epidermoid characteristically shows hypodense mass on precontrast CT withno change after intravenous contrast infusion. 5. The differential points of the major 3 cerebello-pontine tumorswere bone change, mass location, attenuation , degree of attachment to petrous bone, and cystic change.
Angiography
;
Arteriovenous Malformations
;
Infratentorial Neoplasms
;
Meningioma
;
Neoplasm Metastasis
;
Neuroma, Acoustic
;
Papilloma
;
Petrous Bone
;
Skull
5.A case of Behcet's disease with aneurysms of common carotid arteries and abdominal aorta
Yeon Myung CHOO ; Kee Hyun CHANG ; Sung Jae CHOI
Journal of the Korean Radiological Society 1984;20(2):286-290
One case of Behcet's disease with multiple aneurysms in both common carotid arteries and abdominal aorta is presented with brief review of the literatures. A 26-year-old woman had slowly enlarging pulsatile masses in both sides of neck and recurrent ulcerations in oral cavity and genitalia. One day prior to admission, aphasia, right facial nerve palsy and right hemiplegia suddently developed. Brain CT showed acute infarction in left basal ganglia. Both Carotid Angiography and abdominal Aortography demonstrated mulitple aneurysms in both common carotid arteries and abdominal aorta with organizion thrombi and thromboembolism of internal carotid artery.
Adult
;
Aneurysm
;
Angiography
;
Aorta, Abdominal
;
Aortography
;
Aphasia
;
Basal Ganglia
;
Brain
;
Carotid Artery, Common
;
Carotid Artery, Internal
;
Facial Nerve
;
Female
;
Genitalia
;
Hemiplegia
;
Humans
;
Infarction
;
Mouth
;
Neck
;
Paralysis
;
Thromboembolism
;
Ulcer
6.Computed tomography in lumbar herniated disc
Chul Soon CHOI ; Kee Hyun CHANG ; Man Chung HAN
Journal of the Korean Radiological Society 1984;20(3):407-413
197 spine CTs were performed from 29th, March 1982 to 7th March, 1984. Among them, 39 patients preoperatively diagnosed as herniated nucleus pulposus ar bulging disc with CT and myelography were operated. 43 disc spaces ofdisc disease were analysed in true positive and false negative cases. Finally the accuracy, sensitivity and specifictiy of spine CT and myelography ar calculated. The resuslts are as follows; 1. The CT findings of disc diseases are in order of frequency, asymmetrical obliteration of epidural fat (82%), ventral indentation orcompression on dural sac(72%), focal protrusion of disc(64%), root changs
Constriction, Pathologic
;
Humans
;
Hypertrophy
;
Intervertebral Disc Displacement
;
Methods
;
Myelography
;
Spine
;
Vacuum
;
Zygapophyseal Joint
7.A case of Pilomatrixoma of the Eyelid.
Chang Hyun CHOI ; Hae Ran CHANG ; Moo Woong KIM
Journal of the Korean Ophthalmological Society 1992;33(2):180-184
Pilomatrixoma, a rare benign tumor which consists of basophils and shadow cells, has not been reported in Korea. It originates from a hair follicle and occurs commonly on eyelids and the eyebrow in children and young adults. We expoerienced a 7 year-old male who had a progressive growing palpable mass on the upper eyelid. The systemic steroid was administrated under the impression of hemangioma, but there was no effect. So, the mass was exploratorily excised and confirmed as pilomatrixoma by pathologic examinations. We present a case of pilomatrixoma on the upper eyelid in a child.
Basophils
;
Child
;
Eyebrows
;
Eyelids*
;
Hair Follicle
;
Hemangioma
;
Humans
;
Korea
;
Male
;
Pilomatrixoma*
;
Young Adult
8.An experimental study for calculation of cross sectional area and volume in various objects using auto-CAD(computer aided design).
Chang Ju LEE ; Won Ho CHO ; Ho Guen CHANG ; Su Jung CHOI ; Hyun Cheol YANG
The Journal of the Korean Orthopaedic Association 1991;26(6):1864-1871
No abstract available.
9.Bone Ingrowth into Harris-Galante Porous-coated Acetabular Cup Retrieved during Revision.
Jun Dong CHANG ; Je Hyun YOO ; Yong Hyuk CHOI ; Chang Ju LEE
Journal of the Korean Hip Society 2006;18(1):12-17
Purpose: To investigate the extent of bone ingrowth into the porous-coated acetabular cups as well as the factors that correlated with bone ingrowth in total hip arthroplasty. Materials and Methods: Thirty six Harris-Galante porous-coated acetabular cups that were retrieved through revision surgery were examined in this study. Acetabular cups retrieved due to infection or severely destroyed cups (ed note: severe what?) were excluded. The extent of bone ingrowth into the acetabular cups was grossly measured, and its correlation with the variables including age, gender, weight, height, the duration of fixation, size, number of screws, inclination and anteversion was statistically analyzed. Results: The mean proportion of bone ingrowth was 52.9 21.9%(2~90%) and less than 30% in three cups(8.3%). The pattern and the location of bone ingrowth were not consistent. There was no correlation between the extent of bone ingrowth and age, gender, weight, height, the duration of fixation, cup size, number of screws, size, inclination and anteversion. Conclusion: Harris-Galante porous-coated acetabular cups showed satisfactory bone ingrowth regardless of the variables associated with the demographic or surgical conditions. Surface treatments with a fiber-metal porouscoating appears to be suitable for cementless acetabular cups in terms of the long term results.
Acetabulum*
;
Arthroplasty, Replacement, Hip
10.Clinical Consideration on the Treatment of Fractures by Hoffmann's Transfixation Method
Chang Uk CHOI ; Hak Hyun KIM ; Yon Il KIM ; Byong Chun JUN ; Sa Sang CHANG
The Journal of the Korean Orthopaedic Association 1982;17(5):964-972
Open long bone fracture is frequently difficult to reduce and maintain, especilly when there is extensive soft tissue damage. Infection, instability, malalignment and soft tissue complication often result in prolonged mobidity or failure. The Hoffmann's apparatus have merits, that can easily correct distracted, angular or rotational deformity of fracture site during early post-operative period, and stable fixation facilitates easily to the care of soft tissue injury. In addition, the affected limb can be elevated with balanced suspension, possible early exercise of neighboring joints. But we have exerienced some problems during treatment of fracture with Hoffmann's transfixation method. From February 1980 to December 1981, Hoffmann's transfixation method was employed in treatment of twenty-one patients that considered to have a poor prognosis with conversional forms of treatment. The results were obtained as follows; 1. For correction of distracted, angular, or rotational deformity, the fracture site should be reduced accurately. 2. Hoffmann pins should be transfixed as one plane and parrallel to each other. 3. Rigidity of fixation can be increased by increasing number of pins, actually three or more pins should be applied at each fragment of fracture. 4. Hoffmann's apparatus is more complex for management, more expensive and requires skillful technique compared with other external fixation apparatus. 5. The lateral view of fracture site could not be confirmed accurately due to overlapping of Hoffmann's adjustable connecting rod and bony shadow. 6. The main cause of injuries was due to traffic accidents in 17 cases (81%), involving tibia in 18 cases, femur in 2 cases and humerus in 1 case. 7. In the sixteen cases which could be assessed, the average times for external transfixation was 13.9 weeks and then followed by early weight bearing with P.T.B. cast or brace. The average time of bony union was 26.4 weeks. 8. The final result was excellent in 7 cases, good in 5 cases, acceptable in 3 cases, poor in 1 case.
Accidents, Traffic
;
Braces
;
Congenital Abnormalities
;
Extremities
;
Femur
;
Fractures, Bone
;
Fractures, Open
;
Humans
;
Humerus
;
Joints
;
Methods
;
Prognosis
;
Soft Tissue Injuries
;
Tibia
;
Weight-Bearing