No abstract available.
Axis, Cervical Vertebra* ; Dislocations* ; Patella*

No abstract available.

The Ilizarov fixator allows significantly more axial motion at the fracture site than the conventional monofixators. But the transfixing wires have inevitable problems of soft tissue impalement. Therefore the Rancho mounting technique, replacing the transfixing wires with half pins, has become a common place. But the increment of the axial stiffness secondary to replacing transfixing wires with half pins has not been defined clearly yet. The authors measured the axial stiffness of the Ilizarov fixator and two different configurations of the Rancho frame. The group I frame was the Ilizarov fixator composed of four rings and two transfixing wires on each ring. The group II frame was the Rancho frame and it was constructed same as the Ilizarov frame but a transfixing wire was replaced with a half pin from two central rings respectively. The group III frame was another type of Rancho frame which was constructed same as the second group but the remaining transfixing wire was replaced with a half pin from the two central rings respectively. The axial stiffness of the Group I , II and Group III frames were 71.54+/-7.21N/mm, 89.65+/-6.42N/mm, 101.01+/-7.92N/mm respectively. The axial stiffness difference between the Group I frame and the Group II frame was statistically significant(p<0.01). Also the difference between the Group I frame and the Group III frame was statistically significant(p<0.01). This study shows that the replacement of two transfixing wires with two stainless half pins resulted in significant increment of the axial stiffness of the Ilizarov frame.

The microsurgical free vascularized latissimus dorsi myocutaneous flap was successfully applied in the correction of long-term flexion contracture of the left knee due to scalding burn on the paralyzed leg from poliomyelitis. The patient was a 21 year old male, who suffered from 70° of flexion contracture of the left knee due to scalding burn at the age of 7 years. He has had flaccid paralysis of both legs since the age of 2 years. and not been able to ambulate with bilateral crutches and long leg braces. However after posterior capsulotomy, and successful microsurgical free vascularized latissimus dorsi myocutaneous flap, his left knee could be fully extended and fitted into bilateral long leg braces. So he was able to walk with bilateral crutches and discharged from the hospital on the day of 5th week after admission. Therefore microsurgical free vascularized latissimus dorsi myocutaneous flap is recommended for large soft. tissue defects such as those arising from posterior capsulotomy of knee joint used in the correction of flexion contracture from scalding burn scar upon the paralyzed legs from poliomyelitis.
Braces ; Burns ; Cicatrix ; Contracture ; Crutches ; Humans ; Knee Joint ; Knee ; Leg ; Male ; Myocutaneous Flap ; Paralysis ; Poliomyelitis ; Posterior Capsulotomy ; Superficial Back Muscles

There are many hypotheses of spinal instability after trauma and the concept had been recently changed from 2-column concept by Holdsworth to 3-column concept by Francis Denis & McAfee and also there are controversies about the operative management of the unstable thoracolumbar spine fractures and fracture-dislocations. So we tried to find some relationship between the spinal instability and the effect of the stabilization operation for the fractures and fracture-dislocations in the thoracolumbar spine in this study. Totally 53 cases that stabilization operation had been performed for the unstable fractures and fracture-dislocations of the thoracolumbar spine at Yonsei University Hospital, including Yongdong hospital, from March, 1973 to October, 1984 and followed up over 6 months, were reviewed. 1. Majority of the patients (84.9%) was in an active age group (20–49 years of his age) and more common in males. 2. The first lumbar vertebra was most commonly involved segment (43.3%) and falling from a height was the most common cause of injuries (50.9%). 3. Injuries to the anterior, middle and posterior column of the spine (58.5%) was the most common mechanism of injury according to the classification by Francis Denis and McAfee. 4. The wedged deformity of the involved segment over 50% was usual (71.7%) and mean wedged deformity was 57% of the height of the vertebral body and most commonly associated fractures besides the body itself was laminae fractures (46.5%). 5. Seventy eight percent of the angular deformity was corrected after Luque rod instrumentation and 76%, after Harrington rod instrumentation, 68%, after posterior wiring, 58%, after anterior decompression and anterior interbody fusion. 6. Forty twa point seven percent of the displacement in anteroposterior plain X-ray film and 58.8% in the lateral film were corrected by Luque rod instrumentation and 39.5% in anteroposterior film and 44.3% in the lateral film were corrected by Harrington rod instrumentation. 7. No significant differences in the recovery of the neurologic signs were found according to the method of surgical treatments. 8. So Luque rod or Harrington rod instrumentation is now recommended for obtaining the spinal stability as a method of surgical treatment in the unstable thoracolumbar spine fractures and fracture-dislocations.
Accidental Falls ; Classification ; Congenital Abnormalities ; Decompression ; Humans ; Male ; Methods ; Neurologic Manifestations ; Spine ; X-Ray Film

No abstract available.
Muscle, Skeletal* ; Prednisolone*

No abstract available.
Mandible*

OBJECTIVE: This study was designed to evaluate whether maternal serum human chorionic gonadotropin(hCG) level measured during second trimester could be used as a predictor of pregnancy-induced hypertension. METHODS: Between March 1996 and November l997, 505 pregnant women undergoing second trimester(14-22 weeks of amenorrhea) triple marker screening for neural tube defect and Down syndrome who delivered at our institution were reviewed. All samples were assayed in the same laboratory and medical records were reviewed about medical and obstetrical history. RESULTS: Maternal serum human chorionic gonadotropin level(multiples of the median, MoM) was significantly higher in the pregnancy-induced hypertension group than in the control group. With the use of 2. l multiples of the median as a cutoff value, the sensitivity of human chorionic gonadotropin as a screening marker for development of pregnancy-induced hypertension was 38.7%, the specificity was 95.9%, positive predictive value was 38.7% and negative predictive value was 95.9%. Conlusion: We suggest that second trimester maternal serum human chorionic gonadotropin levels can be used clinically as an early predictive marker for pregnancy-induced hypertension.
Chorion ; Chorionic Gonadotropin* ; Down Syndrome ; Female ; Humans ; Humans* ; Hypertension* ; Hypertension, Pregnancy-Induced ; Mass Screening ; Medical Records ; Neural Tube Defects ; Pregnancy ; Pregnancy Trimester, Second* ; Pregnancy* ; Pregnant Women ; Sensitivity and Specificity

No abstract available.
9,10-Dimethyl-1,2-benzanthracene* ; Animals ; Breast Neoplasms* ; Breast* ; Estrogens* ; Rats*

BACKGROUND AND OBJECTIVES: The relationship of cold pressor, hyperventilation and exercise test responses to circadian patterns and types of angina in vasospastic angina have still not been known. The aim of this study was to identify subgoups of patients who have similar clinical features and provocation test response. MATERIALS AND METHODS: Twenty-one consecutive patients with pure vasospastic angina were studied. Six exercise tests were performed in the early morning, late morning, and late afternoon in consecutive days, and 2 hyperventilation tests and 2 cold pressor tests in the early morning. Circadian distribution and types of angina(at rest, on physical activity or both) were evaluated by clinical history, clinical records and ambulatory ECG recordings during admission and follow-up periods(mean 19+/-9 months). RESULTS: Three patterns of circadian distribution of anginal attacks were identified during all observation periods together(morning and night: MN n=, morning and afternoon or evening: M+/E n=, morning, night and afternoon and/or evening: MN+/E n=1). Exercise test was positive in 36%(40/111) without circadian variation, hyperventilation test in 66%(23/35) and cold pressor test in 6%(2/33). Neither hyperventilation test nor cold pressor test was related to circadian patterns, types or activity of angina, or numbers of spastic artery. But positive exercise test increased significantly in patients with angina on physical activity(43% vs 21%, p<0.05), high activity(57% vs 18%, p<0.01), multivessel spasm(50% vs 27%, p<0.05 ) and circadian patterns of M+/E and MN+/E(29%, 55% vs 4%, p<0.05, p<0.01). All patients with MN had rest angina and single vessel spasm. All 6 patients with M+/E had angina both at rest and on physical activity and 5 single vessel spasm. Eight of 11 patients with MN+/E had angina both at rest and on physical activity and 8 multivessel spasm. CONCLUSION: These findings suggest that hyperventilation test is highly sensitive in vasospastic angina without any relationship to clinical features, but exercise test response is related well to circadian patterns of angina attacks which are associated with characteristic clinical features.
Arteries ; Electrocardiography ; Exercise Test ; Follow-Up Studies ; Humans ; Hyperventilation ; Motor Activity ; Muscle Spasticity ; Spasm