No abstract available.
Dental Impression Materials ; Knee

The incidence of the spondylolysis is very low before five years but during the adolescence the incidence increase. The etiologic factors of spondylolisthesis are congenital and acquired. The acquired factors are traumatic and stress fracture. Then there are many congenital properties of the etiologic factors for the spondylolisthesis because several congenital anomalies are combined with spondyolysis or isthmic spondylolisthesis. But there are few articles about relationship between the spondylolysis or isthmic spondylolisthesis and the congenital anomalies around the lumbosacral area. The purpose of this particular study is to search the etiologic factors that increase the degree of the vertebral slippage and relationship between the spondylolysis or ishtmic spondylolisthesis around the lumbosacral area. The plain X-ray and computed tomograms were taken in the 48 patients and the 26 control group that have not chronic low back pain previously. The patients were divided into three groups, such as the spondylolysis, grade I spondylolisthesis, and grade II spondylolisthesis. The parameters measured from the plain X-ray were the incidence of congenital anomalies and degree of vertebral slippate. The parameters measured from the computed tomograms were fact angles and the degree of pseudodisc. Tropism were present for 5 cases, and 16 cases at L3-4 facets, 12 cases, and 22 cases at L4-5 facets, 10 cases, and 28 cases at L5-S1 facets in control and patients group. There was no correlation between the presence or absence of tropism and the vertebral slippage. The sacralization was related with the vertebral slippage but other congenital anomalies were not related to the degree of vertebral slippage. There was a increment of vertebral slippage according to the increase of facet angle, but the linear correlation was absent on regression analysis. So statistical significance was absent among the control group and 3 patients groups. And the vertebral slippage was not significantly different among the groups that were divided according to the difference of facet angle. There was a linear correlation between the degree of the pseudodisc and the degree of vertebral slippage of square=0.60 on regression analysis. At present study, there was a trend of increase of vertebral slippage according to increase of facet angle and presence of the sacralization. And there was a linear correlation between the degree of the pseudodisc and the vertebral slippage.
Adolescent ; Fractures, Stress ; Humans ; Incidence ; Low Back Pain ; Spondylolisthesis ; Spondylolysis ; Tropism ; Zygapophyseal Joint

BACKGROUND: The concentration of the blood including ACTH, catecholamine, serum prolactine, cortisol is increased due to responding on stress by carrying out endotracheal intubation upon the mutiple trauma patients who were taken to the emergency room. Diazepam is a kind of benzodiazepine pharmacon and common pharmacon used for stability of the patients, relief and pretreatment as a booster for the relaxation of skeletal muscle. This research aims to know how effectively medication of diazepam before endotracheal intubation helps to constrain the reaction on the part of cardiovascular system due to laryngoscopy and endotracheal intubation, and makes concentration of catecholamine in blood changed. METHODS: The subjects are consisted of the patient asked for endotracheal intubation instantly, suffering from caput trauma (GCS 8.0) among the multiple trauma patient, more than 20-year-old who were taken to the emergency room in Chosun university hospital from October 1, 1995 to September 30, 1996. They were decided into 2 classes, 30 people each class, and one (group I ) was carried out endotracheal intubation without injecting diazepam,0.3 mg/kg, and the other (group II) was done with the endotracheal intubation by injecting diazepam, 0.3mg/kg. Group I and group II were measured blood pressure and heart rate before intubation and at 1, 3, 5, 7 minute after endotracheal intubation, sampled arterial blood from femoral artery, and then compared and analyzed. All of the data were recorded by mean, standard deviation, and percentage and repeated measures ANOVA test was used for the statistical test and the data was regarded as statistically significant when p value is below 0.05. RESULTS: 1) They were no significant differences statistically between 2 groups in the distribution of the age, weight, sex of the patients. 2) The changes in the systolic blood pressure had no statistical significance in the comparison between group I and group II, but diastolic blood pressure and the change of heart rate had statistical significance because p value was shown below 0.05. 3) Norepinephrine of blood was significantly lower in group II than group I. 4) Epinephrine of blood was significantly lower in group II than group I. CONCLUSION: It was shown that medication of diazepam before endotracheal intubation made stability of the patients and it changed significantly the reaction on the part of cardiovascular system from stress caused by laryngoscopy and endotracheal intubation. So it will be a good thing to inject diazepam for pretreatment to bring relief of the patients and cardiovascular stability before endotracheal intubation.
Adrenocorticotropic Hormone ; Benzodiazepines ; Blood Pressure ; Cardiovascular System ; Diazepam* ; Emergency Service, Hospital ; Epinephrine ; Femoral Artery ; Heart Rate ; Humans ; Hydrocortisone ; Intubation ; Intubation, Intratracheal* ; Laryngoscopy ; Multiple Trauma* ; Muscle, Skeletal ; Norepinephrine ; Prolactin ; Relaxation ; Young Adult

The Tikhoff-Linberg procedure is a limb-sparing surgical option to be considered for bony and soft tissue tumors in and around the proximal humerus and shoulder girdle. The authors reported 6 cases of the Tikhoff-Linberg procedure for tumors around the shoulder Joint at the Department of Orthopedic Surgery of Severance Hospital from March 1988 to August 1989. 1. The 6 cases were composed of 2 osteogenic sarcoma, 2 chondrosarcoma, 1 chondroblastoma, and 1 giant cell tumor cases. 2. The tumors were completely removed by the Tikhoff-Linberg procedure without amputation or disarticulation of the upper extremity. 3. The distal clavicle, upper humerus and or parts or all of the scapula were resected. 4. The Tihkoff-Linberg procedure was performed for patients whose tumors did not involve the neurovascular bundle in the axilIa. 5. The function of the hand and forearm after the Tihkoff-Linberg procedure are near normal in all cases. 6. The Tikhoff-Linberg procedure would be recommended as a limb-sparing operation for tumors around the shoulder joint that were required wide resection without disarticularion or forequarter of the upper extremities.
Amputation ; Chondroblastoma ; Chondrosarcoma ; Clavicle ; Disarticulation ; Forearm ; Giant Cell Tumors ; Hand ; Humans ; Humerus ; Orthopedics ; Osteosarcoma ; Scapula ; Shoulder Joint ; Shoulder ; Upper Extremity

No Abstract available.

Wallerian degeneration is well known as the anterograde degeneration of axon and their accompanying myelin sheath from injury to the proximal portion of the axon or its cell body. The most common cause of wallerian degeneration is cerebral infarction. Authors experienced three patients with old hemispheric infarct with typical wallerian degeneration in the brain stem, which was demonstrated by magnetic resonance imaging (MRI) in two cases and CT in one case. This report demonstrates the wallerian degeneration in the corticospinal tract on the MRI and CT with the brief review of the literatures.
Axons ; Brain Stem ; Brain* ; Cell Body ; Cerebral Infarction ; Humans ; Magnetic Resonance Imaging* ; Myelin Sheath ; Pyramidal Tracts ; Wallerian Degeneration*

The purposes of this study were to detect the indices of evaluating for degree of compression and to detect the indices of recovery after decompression in different time intervals in the animal model of 50 percent compression of the cauda equina, through the examination of neurologic status and electrodiagnosis. Twenty-one male dogs, weighing between nine and eleven kilogram, were used. Three experimental groups were studied. One group (5 dogs) served as controls. In the other groups, the cauda equina was constricted by 50 percent to produce chronic compression, and decompression was done after 2 weeks compression in one group and 4 weeks compression in another group. The dogs in which the cauda equina had been decompressed at 2 weeks, showed the recovery of sensory evoked potentials at 2 weeks after decompression and bulbocavernosus reflexes at 4 weeks. The dogs in which the cauda equina had been decompressed at 4 weeks, showed the recovery of sensory evoked potentials and bulbocavernosus reflexes at 4 weeks after decompression. In both groups of the cauda equina compression, motor evoked potentials were partially recovered by 6 weeks after decompression. The initial neurological deficits in both groups were improved by 6 weeks. The cauda equina revealed that the epidural scar tissue in compressed site was more severe in 4 weeks compression group. But the substance of the cauda equina did not have any pathological changes in gross examination. Microscopically, neural tissue was showed the normal appearance without pathological changes in all groups. In conclusions, the early decompression of cauda equina revealed that the onset of recovery was more faster and the amplitude of recovery was larger comparing with delayed decompression in electrodiagnostic test. Also, the surgical decompression itself was helpful to improve the electrodiagnostic changes around 4 weeks after decompression. Sensory evoked potential was improved at the first and motor evoked potentials was recovered after disappearance of the claudication.
Animals ; Cauda Equina* ; Cicatrix ; Decompression* ; Decompression, Surgical ; Dogs* ; Electrodiagnosis ; Evoked Potentials ; Evoked Potentials, Motor ; Humans ; Male ; Models, Animal ; Polyradiculopathy ; Reflex

Avulsion fractures of the tibial tuberosity are uncommon and they usually occur in adolescents during sports activities. Ogden et al modified Watson-Jones classification into three types. To our knowledge, only two cases of tibial tuberosity avulsion fractures combined with meniscal tear were reported. We report an Ogden-type III intra-articular fracture of the tibial tuberosity combined with tear of the medial meniscus.
Adolescent ; Classification ; Humans ; Intra-Articular Fractures ; Menisci, Tibial ; Sports

No abstract available.

The purpose of this retrospective study was to compare the morphologic change of the posterior cruciate ligament (PCL) in the anterior cruciate ligament (ACL) tear group and control group by the quantitative analysis. The study groups of patients were; acute ACL tear group (21 patients), chronic ACL tear group (31 patients), and meniscus tear group (20 patients) that undertaken partial meniscectomy. To express curved shape of the PCL quantitatively, the authors made a line (basal line) between the femoral attachment and tib- ial attachment of the PCL and decided the point (apex) that was located most far away from the base line. And the authors made a line (line 1) between the femoral attachment and the apex of the PCL, another line (line 2) between the tibial attachment and the apex of the PCL, and quartered the base line; first quartile, Hl, second quartile, H2, and third quartile, H3. The authors measured the each angle between basal line and line 1 (angle a), between basal line and line 2 (angle b), each height of the PCL at each quartile (Hl, H2, H3) and at the apex of the PCL on the basal line (H4). Three groups were compared and examined which factor was able to decide whether the ACL was ruptured or nnt. Angle a was significantly higher in chronic ACL tear group than acute ACL tear group and meniscus tear group. In conclusion, the PCL of sigmoid or curled up shape is a more constant finding of chronic ACI tear than acute ACL tear.
Anterior Cruciate Ligament* ; Colon, Sigmoid ; Humans ; Magnetic Resonance Imaging* ; Posterior Cruciate Ligament* ; Retrospective Studies