Experimental, epidemiological and clinical studies indicate and important relationship between abnormalities in serum lipoproteins and atherosclerosis. With the introduction in 1965 by Fredrickson and Lees of a system for phenotyping hyperlipoproteinemias, quantitation of pre-and beta-lipoproteins gained much significance, and hence, the development of simple method for studying serum lipids and lipoproteins is needed. In the past, several methods have been proposed for the estimation of serum lipoproteins by electrophoresis. Authors observed serum total lipoprotein, beta-lipoprotein, pre-beta-lipoprotein and alpha-lipoprotein fractions in 80 (male:40, female;40)normal individuals with electrophoesis using cellulose acetate membrane instead of filter paper and concluded as follow: 1) Total lipoprotein and beta-lipoprotein levels had increasing tendency according to aging on both sexes. 2) Serum pre-beta-lipoprotein level also had increasing tendency according to age on both sexes and these features are more conspicious after fifth decade. 3) Electrophoresis using cellulose acetate membrance seem to be convinient method for analysis of serum lipoproteins especially pre-beta-lipoprotein fraction. 4) This method can be likely applied as routine screening test of hyperlipemia.
Aging ; Atherosclerosis ; Cellulose* ; Electrophoresis* ; Hyperlipidemias ; Hyperlipoproteinemias ; Lipoproteins ; Lipoproteins, LDL ; Mass Screening ; Membranes*

Although the conclusion is controversial, there has long been an appealing notion that catecholamines may be involved in some way in the pathogenesis of primary hypertension and almost invariably most of hypotensive drugs involve at various sites of the neuron and produce their effect by depletion of norepinephrine in the sympathetic nerve ending. The authors undertook the comparative study on catecholamine depleting action of 3 most effective drugs available for the treatment of hypertension, reserpine, guanethidine and alpha-methyldopa, measuring the plasma catecholamine levels and urinary exceretion of caecholamine by the modified fluorometric method of Weil-Malherbe and Bone during the treatment of hypertension. The results are as follows: 1) Before the administration of hypotensive drugs, mean blood pressure was 180/110mmH, mean psalma epinephrine level was 0.36+/-0.23gamma%, mean plasma norepinephrine level was 0.48+/-0.35gamma%, 24 hours urinary excretion of epinephrine was 3.6+/-0.12gamma/day and 24 hours urinary excretion of norepinephrine was 68.9+/-0.34gamma/day. 2) In group 1 (reserpin administered group), the mean blood pressure was 190/110mmHg before the treatment and which was declined to 155/89mmHg on the last day of 4th week, in group 2 (guanethidine administered group), the mean blood pressure measured before the treatment was 185/110mmHg and which was declined to 150/85mmHg on the last day of 4th week, and in group 3 (alpha-methylodpa administered group), the mean blood measured pressure measured before the treatment was 182/110mmHg and which was declined to 153/88mmHg on the last day of 4th week. 3) After the treatment for 4 weeks with reserpin guanethidine and alpha-methyldopa, the mean plasma epinephrine levels were declined from 0.37+/-0.12gamma% to 0.11+/-0.08gamma% in group 1, from 0.38+/-0.16gamma% to 0.14+/-0.10gamma% in group 2 and from 0.33+/-0.23gamma% to 0.10+/-0.09gamma% in group 3. 4) The mean plasma norepinephrine levels were declined from 0.05+/-0.21gamma% to 0.22+/-0.12gamma% in group 1, from 0.51+/-0.25gamma% to 0.20+/-0.10gamma% in group 2 and from 0.51+/-0.21gamma% to 0.20+/-0.11gamma% in group 3 after the treatment of 4 weeks respectively. 5) Urinary exceretion of epinephine was declined from 32.3+/-0.16gamma/day to 10.4+/-0.10gamma/day in group 1, from 34.5+/-0.34gamma/day to 17.2+/-0.16gamma/day in group 2, and from 28.2+/-0.14gamma/day to 10.3+/-0.11gamma/day in group in group 3 after the treatment of 4weeks duration. 6) The mean value of 24 hours urinary excretion of norepinephrine was declined to from 72.2+/-0.35gamma/day to 28.5+/-0.14gamma/day in group1, from 69.2+/-0.34gamma/day to 22.6+/-0.21gamma/day in group 2 and from 68.6+/-0.34gamma/day to 18.2+/-0.10gamma/day in group 3 after the treatment of 4 weeks duration. 7) From the above result we can summarized as follows: Antihypertensive effect of each drugs was; guanethidine>alpha-methylodopa>reserpin in order but depressing action plasma norepinephrine levels was; alpha-methyldopa>guanethidine>reserpin and depressing effect of urinary norepinephrine excretion was; alpha-methyldopa>guanethidine>reserpin, in order.
Antihypertensive Agents* ; Blood Pressure ; Catecholamines ; Epinephrine ; Guanethidine ; Humans ; Hypertension ; Methyldopa ; Nerve Endings ; Neurons ; Norepinephrine ; Plasma* ; Reserpine

Fixation failure is a major complication of intertrochanteric fracture. The causes of fixation failure were assessed in a series of 80 patients with intertrochanteric fractures, which had been internally fixed with either a sliding hip screw or a Gamma interlocking nail. The overall rate of fixation failure was 16.3%, in which the cutting-out of the implant from the femoral head was the only cause of the instance. The cutting-out rate was influenced by the accuracy of fracture reduction, the position of implant placement within the femoral head, and the bone mineral density. Anatomical reduction and the central placement of implant within the femoral head showed the most excellent results compared to other treatment modalities. Age, gender, fracture type and a kind of fixation implant had no significant effect. Our results showed that the intertrochanteric fractures should be reduced as anatomically as possible and it is essential that the central placement of the implant within the femoral head be obtained.
Bone Density ; Head ; Hip ; Hip Fractures* ; Humans

STUDY DESIGN: This study assessed the final functional results after treatment of thoracolumbar burst fractures and compared the relationship between the results and the parameters of reduction and state of the fractures. OBJECTIVES: To define prognostic factors affecting the final results and to present some precautions to minimize the treatment failure. SUMMARY OF LITERATURE REVIEW: In the treatment of the thoracolumbar burst fractures in which flexion loads are predominant, the sagittal contour is crucial to achieve permanent pain-free stability, but definitive therapeutic guidelines have remained a controversal topic. MATERIALS AND METHODS: We reviewed 37 thoracolumbar burst fractures with an average follow up period of 1.8 years: group 1 consisting of 20 cases treated conservatively and group 2 consisting of 17 cases treated surgically with posterior instrumentation. Finally functional results were analysed with the Denis'pain and work scores, and were compared between groups on anterior body height and local kyphosis. RESULTS: A satisfactory pain score less than or equal to P3 was in 15(75%) in group 1 and 15(88.2%) in group 2(p>0.05), but satisfactory work score less than or equal to W3 was in 12(60%) in group 1 and in 14(82.4%) in group 2(p<0.05). But, some loss of body height and local kyphosis in group 1 was not reversely related with functional outcomes. Eight cases in group 1 showing unsatisfactory result in work scores were analyzed as 4 osteoporosis(Jikei grade I, II/III), 3 associated compression fracture of the contiguous vertebra and one combined osteoporosis and compression fracture, showing significant loss of vertebral height and increase of kyphosis(p<0.01). CONCLUSIONS: Functional results of group 1 showing loss of vertebral height less than 50% and increased kyphosis less than 200 were comparable to those of group 2. The osteoporosis and associated compression fracture of adjacent vertebra were the risk group to develop posttraumatic kyphosis and might be added to the surgical indication of the thoracolumbar burst fractures.
Body Height ; Follow-Up Studies ; Fractures, Compression ; Kyphosis ; Osteoporosis ; Spine ; Treatment Failure

Open tibial pilon fractures present extensive soft tissue disruption and common complications such as sepsis or skin slough, and deserve special cosideration in addition to the challenging reconstructive problems. The purpose of this study is to assess the effectiveness of limited internal fixation and external fixation for the treatment of the open tibial pilon fractures, and to introduce some idea in Ilizarov device use. We reviewed 27 open tibial pilon fractures treated with limited internal fixation and external fixation from Feb. 1992 to Mar. 1996(follow-up range, 1 to 5 years). Fracture classification(Ruedi and Allgower) was type I in 5, type II in 10 and type III in 12, open wound type(Gustilo-Anderson) was II in 8, IIIA in 17 and IIIB in two. Secondary procedures were 16 soft tissue procedures, 13 bone graftings and 2 limb lengthening. Mean time for removal of the external fixators was 3.5 months(range, 6 to 21 weeks), and clinical union averaged 4.3 months(range, 12 to 25 weeks). At the time of last follow-up, radiologic grading(Burwell and Charnley) showed 13 good(48%), 10 fair(37%) and 4 poor results(15%). Objective functional grading(Ovadia and Beals) showed 5 excellent(19%), 15 good(56%), 6 fair(22%) and 1 poor(4%), and subjective grading 2 excellent(7%), 16 good(59%), 7 fair(26%) and 2 poor(7%). Common complications included 10 wound sepsis(37%), 6 posttraumatic arthritis(22%) and 5 malunions(19%). In conclusion, we cosider limited internal fixation and external fixation is an effective treatment modality till bone union for open tibial pilon fractures, and Ilizarov method using tension wires crossed only through the fracture fragments can provide a sufficient early and late stability.
External Fixators ; Extremities ; Follow-Up Studies ; Ilizarov Technique ; Sepsis ; Skin ; Tibia ; Transplants ; Wounds and Injuries

There have long been a lot of controversies on the treatment of unstable thoracolumbar spine fracture, and the role of decompression is also controversial. Compression of the neural elements by retropulsed bone fragments can be relieved indirectly by the reduction with posterior instrumentation or directly by the exploration of the spinal canal through a posterolateral or anterior approach. There is no universal agreement about the indications for each of these method. Authors analyzed the result of 24 cases of thoracolumbar spine fracture which had been operated by anterior decompression and Kaneda instrumentation from the February 1990 to May 1993 at Inha general hospital. The results were as follows: 1. The most common cause of injury was falling from a height, 20 cases (83.3%). And the 12 cases were in the 4th decade, with an average age of 37.7 years. 2. According to McAfee classification, there were 7 stable(29.2%) and 15 unstable bursting fractures(62.5%). And the most common level of injury was L1(11 cases, 45.8%). 3. Neurologic status was improved one or more grade(Frankel grade) in 21 cases except one case of complete paraplegia. 4. The average correctional angle of kyphotic deformity was 13.1° immediate postoperatively, and the loss of correction(average, 6.7°) was observed during the follow-up period. 5. The segmental instability was found at the level below the fusion in three cases during the follow-up period. 6. There was neither failure of instrument, dislodgement of graft bone nor lateral wedging during the follow-up period.
Accidental Falls ; Classification ; Congenital Abnormalities ; Decompression ; Follow-Up Studies ; Hospitals, General ; Methods ; Paraplegia ; Spinal Canal ; Spine ; Transplants

Seventy-three uncemented total hip arthroplasties in the sixty-four patients were studied as a retrospective manner. Hydroxyapatite and tricalcium-phosphate (HA/TCP Calcicoat) coated titanium fiber-mesh stems were used in forty-eight cases and the identical components but without hydroxyapatite coating were used in the other twenty-five cases. The distribution of the patients in two groups showed no statistically significant differences and the same porous coated hemispherical acetabular components were used in two groups. At the time of two year follow-up after the operation, the mean Harris hip score and the Enghs radiographic assessment score were 95.5 and 19.8, respectively, in the HA/TCP Calcicoat tm group and 94.4 and 19.2, respectively, in the non-coated group. None of these differences were statistically significant. At three months after operation, the frequency of the thigh pain was 8.3% in the HA/TCP Calcicoat tm group and 20% in the non-coated group, which was also not significantly different (p=0.24). There were no revisions in either group. All the femoral components except one among the non-coated group showed stable bony fixation in both groups and no differences in Enghs radiographic assessment criteria were detected between the two groups. There seemed to be a tendency of early pain relief and more endosteal new bone formation in the HA/TCP Calcicoat TM group, which, however, failed to show a statistically significant clinical or radiographic differences. This result is considered as preliminary and longer follow-up should be required to uncover any hidden advantages or disadvantages of the HA/TCP Calcicoat TM coating on titanium fiber-mesh stem.
Acetabulum ; Arthroplasty ; Arthroplasty, Replacement, Hip ; Durapatite* ; Follow-Up Studies ; Hip ; Humans ; Osteogenesis ; Retrospective Studies ; Thigh ; Titanium*

No abstract available.

Background: Fluvastatin is the first entirely synthetic 3-hydroxy-3-methylglutaryl-coenzyme A(HMG-CoA) reductase inhibitor. Clinical data indicate that this agent exhibits the proven efficacy of its class and also has some theoretical advantages in safety for long-term use because of its unique pharmacololgic property consistent with hepatoselectivity(i.e., low systemic exposure). This study is to evaluate efficacy and safety of fluvastatin in hypercholesterolemic patients in Korea. Methods: An open clinical trial with fluvastatin was conducted in 31 subjects who continued to have high blood cholesterol levels of 6.21 mmol/L(240 mg/dl) or greater after 1 month of lipid-lowering diet plus single blind placebo period. Fluvastatin was administered for 8 weeks with the initial dose of 20 mg per day and if serum cholesterol levels did not fall below 5.20 mmol/L(200 mg/dl) after 4 weeks the dose was increased to 40 mg per day for the second 4 weeks. On each visit every 4 weeks they underwent interview and laboratory tests about side effects and tolerability. Results: The mean % changes in plasma total cholesterol and LDL-cholesterol from baseline were
Cholesterol ; Creatine Kinase ; Diet ; Humans ; Hypercholesterolemia ; Korea ; Oxidoreductases ; Plasma ; Sleep Stages ; Triglycerides

STUDY DESIGN: A retrospective study. OBJECTIVES: To assess the efficiency of undercorrection and transpedicular screw fixation through a posterior approach in osteoporotic spine fractures with a thoracolumbar kyphotic deformity. SUMMARY OF LITERATURE REVIEW: The surgical treatment of osteoporotic spine fractures with a thoracolumbar kyphotic deformity requires extensive surgical procedures to obtain complete restoration of the sagittal alignment, but it has a few technical limitations due to insufficient mechanical stability at the bone-screw interface. A special strategy is essential for transpedicular screw fixation for osteoporotic spine fractures with a thoracolumbar kyphotic deformity. MATERIALS AND METHODS: We reviewed 14 osteoporotic spine fracture cases, with a thoracolumbar kyphotic deformity, which had undergone undercorrection and transpedicular screw fixation through a posterior approach, between March 2000 and June 2003, with an average follow-up period of 15. 2 months. According to the Jikei grade of the osteoporosis, 9 and 5 cases were grades 2 and 3, respectively. As a radiographic assessment, we measured the kyphotic angles of the fused segments on the preoperative, postoperative and last follow up thoracolumbar lateral views on standing using Cobb's method, and also assessed the kyphotic angle correction (KAC). The clinical results were evaluated at the last follow-up. RESULTS: The kyphotic angles at the preoperative, postoperative and last follow-up were 33.5 degrees +/- 9.3, 22.4 degrees +/- 6.9 and 24.7 degrees +/- 6.8, respectively. We obtained a mean KAC gain of 11.1 degrees postoperatively (p<0.05), but a loss of 2.3 degrees at the last follow-up (p>0.05). The clinical results were analyzed as good, fair and poor in 8, 5 and 1 case, respectively. Fusions were achieved in all cases. CONCLUSIONS: Undercorrection and transpedicular screw fixation for a thoracolumbar kyphotic deformity in osteoporotic spine fractures can be one of the alternatives to avoid fixation failure and an extensive surgical procedure.
Congenital Abnormalities* ; Follow-Up Studies ; Kyphosis ; Osteoporosis ; Retrospective Studies ; Spine*