1.Radiologic analysis & diagnostic value of lateral tomography on ossification of posterior longitudinal ligamentof c-spine
Hae Jeong JEON ; Hae Sang JEON ; Dae Young KIM
Journal of the Korean Radiological Society 1985;21(5):812-818
The ossification of posterior longitudinal ligament of the spine(OPLL) is newly recongnized clinical entity,although compression of the spinal cord by an OPLL was reported by key as early as in 1839 in Guy's HospitalReport. OPLL was noticeable in lateral tomography as an abnormal dense radiopacity along the posterior margins ofthe vertebral body. Authors retrospectively analysed the diagnostic values and findings of lateral tomography ofthe cervical spine in 11 cases at Kang Nam General Hospital Public Corporation during 1 yr from July 1984 to June1985. The results were as follows; 1. Among suspected 11 cases of OPLL, 9 cases were confiremd as OPLL on lateraltomogram. 2. Age range was 25 years old to 55 years old and more prevalent age was over 5th decades & male wasmore involved than female. 3. Frequent involvement was C2-C5 level and number of vertebral bodies involved was 3.6in average. 4. This ossification developed 4 modes, a continuous type 11%, segmental 33%, mixed type 33%,circumscribed type in 22%. 5. OPLL thickness were from 2mm to 4.5mm and spnal canal narrowing ratio were form 25%to 44% and there were norational relationships between clinical symptom and thicknness of OPLL. 6. On diagnosis ofOPLL, lateral tomography is accurate and recommendable screening study due to easy, noninvasive, indisipensable and less harmful technique, compared to those of myelography or computed tomography.
Diagnosis
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Female
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Hospitals, General
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Humans
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Male
;
Mass Screening
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Myelography
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Ossification of Posterior Longitudinal Ligament
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Retrospective Studies
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Spinal Cord
;
Spine
2.Femoral Neck Fracture in Young Adult: 25 Cases Treated with Multiple Pinning
Hyung Ku YOON ; Kwang Pyo JEON ; Dae Eun JUNG ; Ho Seung JEON ; Dae Young JANG
The Journal of the Korean Orthopaedic Association 1996;31(2):235-246
In general. femoral neck fracture in young adult presents poor prognosis due to the high velocity injury, high angle shear fracture, and poor candidate for arthroplasty. In addition to the relative rarity of the injury, the high incidence of aseptic necrosis and nonunion have been reported in the management of these fractures. 25 cases of femoral neck fracture in young adult were treated with multiple pinning and analyzed at Sung-Ae general hospital from 1987 to 1994 after 28 months follow up in average with review of charts, X-ray and clinical result. There were 18 male and 7 female, 5 cases of them had significant polytrauma to other organs or skeletal system, authors tried to treat them as soon as possible to decrease the interval time between fracture and fixation (the average time was 39.7 hours.) Union occurred in all of Garden stage I (4 cases) and II (4 cases), but in Garden stage III (7 among 8 cases) and IV (7 among 9 cases) the union rate was lower. Average union time was 16.5 weeks. The incidence of complications (12%, 3 among 25 cases) was higher in displaced fractures group (Garden stage III, IV) and also in poorly reduced group of Garden’s alignment index. In conclusion, the prognosis of femoral neck fractures in young adult was related with mainly initial reduction and rigid fixation than the initial injury.
Agriculture
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Arthroplasty
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Female
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Femoral Neck Fractures
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Femur Neck
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Follow-Up Studies
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Hospitals, General
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Humans
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Incidence
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Male
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Multiple Trauma
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Necrosis
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Prognosis
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Young Adult
3.Clinical study of myositis ossificans.
Han Goo LEE ; Young In LEE ; Dae Geun JEON
The Journal of the Korean Orthopaedic Association 1991;26(1):138-144
No abstract available.
Myositis Ossificans*
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Myositis*
4.Computed tomography of osteitis condensans ilii
Guk Hee KIM ; Hae Sang JEON ; Dae Young KIM
Journal of the Korean Radiological Society 1986;22(4):596-600
The CT is a more accurate technique for detecting sclerotic bony change of osteritis condensans ilii thanplain radiograph. We analysed a comparison between CT and plain radiography of osteitis condensans ilii, acorrelation between osteitis condensans ilii and women of childbearing age. The result were as follow: 1. Theincidence of osteitis condensans ilii is 5.3% on KUB, 11.7% on CT when the width of iliac sclerosis is more than7.5mm as diagnsotic criteria. 2. We observed a osteitis condensans ilii between 19 years and 51 years of age, mostfrequently in fourth decade. 3. The width of iliac sclerosis is 10-13 mm in 3 cases of osteitis condensans ilii onboth CT &KUB, 7.5-9mm in 4 cases of osteitis condensans ilii on CT only. 4. The incidence of osteitis condensansilii is increased significantly when the width of iliac sclerosis is less than 7.5mm as diagnostic criteria. 5.Relatively high correlation between osteitis condensans ilii and delivary in our study (66.6%)
Female
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Humans
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Incidence
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Osteitis
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Radiography
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Sclerosis
5.Value of the lumbar lordotic angle taken angle from CT scanogram as an index of back pain
Hea Sang JEON ; Guk Hee KIM ; Dae Young KIM
Journal of the Korean Radiological Society 1986;22(5):873-878
Normal" spinal posture is generally accepted as moderate lordosis of the cervical and the lumbar sections ofspine and moderate kyphosis of the thoracic and sacrococcygeal sections. Among these normal range of the lumbarlordosis is less well defined. CT is very useful method to identified the bony structure and adjacent soft tissueof the spine, so it is very available method to detect accrate lumbar lordotic angle by using lateral Scanogram.Analysis and comparison of lumbar lordotic angles, crossing angle are drawn each parallel line to the superior endplate of body of 1st. lumbar vertebra and to the inferior end plate of the 5th. Lumbar vertebra, in 174 cases withbackache and 50 cases normal groups at Kangnam General Hospital Public Corporation, from Aug. 1985 to Jul 1986.Male and female were almostly same affected in backache group (1.1:1). And most lumbar lordotic angles were 10 degrees to 40degrees between all backache age group. On backache group, over all mean lumbar lordotic angleswere 24.7±8.9degrees but no significant difference at mean value of the each disease, such as HIVD, DegenerationSpondylosis or No Remarkable Finding group. On control group, over all mean ones were 29.2±8.0degrees. So,significant difference of lumbar lordotic angle between backache and control group, and most difference is at 5th.decade group(p<0.01).
Animals
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Back Pain
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Female
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Hospitals, General
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Humans
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Kyphosis
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Lordosis
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Methods
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Posture
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Reference Values
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Spine
6.Treatment of Acromioclavicular Dislocation with Modified Phemister Method
Hyung Ku YOON ; Hoe Seung JEON ; Kwang Pyo JEON ; Dae Eun JUNG ; Soon Young PARK
The Journal of the Korean Orthopaedic Association 1995;30(2):416-423
The method of treatment of acromioclavicular dislocation is controversial, and conservative and surgical treatment have been reported to be both successful. Recently, many surgeons tend to treat the acromioclavicular dislocation with anatomical reduction of acromioclavicular joint and rigid internal fixation because of many disadvantages of conservative methods. We report 24 cases of acute acromioclavicular dislocation treated with modified Phemister method from March 1989 to December 1992. The follow-up ranged from 12 months to 31 months with 16.5 months on average. The results are as follows. l. Among 24 cases, 21 cases are males and 20 cases are in 3rd decade to 5th decade. 2. The most common cause of injuries is falling down, followed by traffic accident. 3. Associated injuries are fractures in 5 cases, spleen rupture in 1 case. 4. Except 1 case with spleen rupture, 23 cases were treated within 2 weeks after injury. 5. Preoperative difference in C-C distance on stress view is 8.6mm on average, ranged from 6mm to 18mm. 6. Clinical results were excellent in 11 cases, good in 10 cases, fair in 2 case, and poor in 1 case. 7. Complications were pin migration in 1 case and symptomatic acromioclavicular arthritis in 1 case.
Accidental Falls
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Accidents, Traffic
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Acromioclavicular Joint
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Arthritis
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Dislocations
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Follow-Up Studies
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Humans
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Male
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Methods
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Rupture
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Spleen
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Surgeons
7.Clinical Experience of the Endoscopic Removal of Ureteral Stone without Anesthesia.
Kyung Il KWON ; Gyu Young YEUM
Korean Journal of Urology 1994;35(10):1128-1132
Use of the rigid ureteroscope has become widely accepted for the removal of ureteral calculi. We evaluated retrospectively the experience with rigid ureteroscopy from March 1992 to February 1993. We performed 68 ureteroscopies for the removal of stone in 67 patients, overall success rate was 86,8%. 52 stones were treated with sedatives only and l6 stones under the anesthesia. The success rates were 86.5% ( 45/52) and 87.5% (l4/l6) each. We failed to remove ureteral stones in 9 case, the failure of ureteroscope introduction was the most common cause of failure. The most common complication was the ureteral mucosal trauma, that was treated by indwelling of ureteral stent. We conclude that ureteroscopy may be an effective and useful procedure for the treatment of 1ower ureter stone (smaller than 10mm in size) under non-anesthesia.
Anesthesia*
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Humans
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Hypnotics and Sedatives
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Retrospective Studies
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Stents
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Ureter*
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Ureteral Calculi
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Ureteroscopes
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Ureteroscopy
8.A Case of Cystadenocarcinoma of the Kidney.
Kyung Il KWON ; Seog Il PARK ; Ho Seung RHEE ; Gyu Young YEUM
Korean Journal of Urology 1995;36(9):999-1002
Papillary renal cell carcinoma is a histological variant that may be cystic in appearance. This variety has been termed cystadenocarcinoma to distinguish it from a renal cell carcinoma that has been rendered cystic through necrosis and hemorrhage. Because a greater proportion presented as stage I lesion, papillary renal cell carcinoma has been reported to have a better prognosis than renal cell carcinoma in general. We report a case of cystadenocarcinoma of the kidney that was confirmed by surgical exploration.
Carcinoma, Renal Cell
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Cystadenocarcinoma*
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Hemorrhage
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Kidney*
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Necrosis
;
Prognosis
9.A Case of Synchronous Squamous Cell Carcinoma of the Bladder and Transitional Cell Carcinoma of the Ureter.
Kyung Il KWON ; Seog Il PARK ; Ho Seung LEE ; Gru Young YEUN
Korean Journal of Urology 1995;36(4):458-462
The occurrence of double primary tumors in an individual patient was first described by Billroth approximately 100 years ago. The genitourinary organs appear to be at greater risk for double primary tumors, because the urological system is at higher risk for primary tumors( prostate and bladder ). Multifocal involvement is a well-known feature of transitional cell carcinoma. But the coexistence of two separate primary urothelial carcinomas occurring simultaneously is extremely unusual. We report on a 25-year-old man who had synchronous double primary tumors : squamous cell carcinoma of the bladder and transitional cell carcinoma of the ureter.
Adult
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Carcinoma, Squamous Cell*
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Carcinoma, Transitional Cell*
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Humans
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Prostate
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Ureter*
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Urinary Bladder*
10.THE INFLUENCE OF WATTAGE AND CURING TIME OF MICROWAVE ENERGY ON PHYSICAL PROPERTIES OF THE DENTURE BASE RESIN.
Dae Sung JEONG ; Jang Seop LIM ; Chang Mo JEONG ; Young Chan JEON
The Journal of Korean Academy of Prosthodontics 1999;37(6):767-775
The purpose of this study was to evaluate the effect of wattage and curing time on surface hardness, three-point bending strength and internal porosity of microwave curing denture base resin. Two sizes of resin spicimens were made of Acron MC ; 3.5x10x60mm for surface hardness and three-point bending strength measurement and 5x12x60mm for internal porosity measurement. They were cured by microwave energy at varing wattages(500W, 700W) and curing times(2min., 3min., 4min.) to determine if a certain wattage/curing time combination would improve physical properties. Surface hardness was measured with Vikers hardness tester, three-point bend-ing strength with universal testing machine and internal porosity was calculated by measuring the weight in air and in water. The results obtained were as follows : 1. There was no significant difference in percent porosity among experimental groups(p>0.05). 2. 500W/3min, group showed the higher surface hardness than 700W/2, 3, 4min. groups(p<0.05), and 700W/4 min. group showed the lower surface hardness than 500W/2, 3, 4min. groups(p<0.05), but there was no significant difference among others(p>0.05). 3. 500W/3min. group yielded the higher value of bending strength than 500W/2min., 700W/3, 4min. groups(p<0.05), but there was no significant difference among others(p>0.05).
Denture Bases*
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Dentures*
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Hardness
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Hardness Tests
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Microwaves*
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Polymethyl Methacrylate
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Porosity
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Water