Angiographic findings were analysed in 11 cases of Behcet'sdisease which was diagnosed clinically in Seoul national University Hospital from July 1982 to June 1983. Arterial involvement was noted in 5 cases and venous involvement in 6 cases respectively. Arterial aneurysm and occlusion were arteriographic findings. Arterial aneurysm was noted at large arteries in all 5 cases and multifocal involvement was noted in 4 cases. Characteristic finding of arterial involvement was protruding saccular aneurysm. Venous involvement was thrombotic occlusion of deep veins in iliac, femoral and tibial areas in all 6 cases. Behcet's disease should be differentiated whenever these arterial or venous angiographic findings are revealed in a young adult.
Aneurysm ; Arteries ; Humans ; Seoul ; Veins ; Young Adult

No abstract available.

No abstract available.

STATEMENT OF PROBLEM: One of common problems associated with single teeth dental implant prosthetic is the loosening of screws that retain the implants. PURPOSE: The maintenance of screw joint stability is considered a function of the preload achieved in the screw when the suggested initial tightening torque is applied. The purpose of this study was to investigate acquired preload after initial clamping torque for estimating screw joint stability. MATERIAL AND METHODS: A comparative study on the effect of initial clamping of two types of implant systems with different connections was conducted. Three dimensional non-linear finite element analysis is adopted to compare the characteristics of screw preloads and stress distributions between two different types of implant systems composed with abutment, screw, and fixture under the same loading and boundary conditions. RESULTS: 1. When the initial clamping torque of 32Ncm was applied to the implant systems, all types of implants generated the maximum effective stress at the first helix region of screw. 2. Morse taper connection types of implants generate lower stress distributions compared to those by butt joint connection types of implants due to large contact surface between abutment and fixture. 3. The internal types of implant systems with friction grip type implant systems have higher resistance to screw loosening than that of the external types of implant systems since the internal types of implant systems generated larger preload than that generated by the external types for the same tightening moments.
Constriction* ; Dental Implants ; Finite Element Analysis* ; Friction ; Hand Strength ; Joints ; Tooth ; Torque

A 30-year-old male was involved in a car accident. Radiographs revealed a depressed marginal fracture of the medial tibial plateau and an avulsion fracture of the fibular head. Magnetic resonance imaging showed avulsion fracture of Gerdy's tubercle, injury to the posterior cruciate ligament (PCL), posterior horn of the medial meniscus, and the attachments of the lateral collateral ligament and the biceps femoris tendon. The depressed fracture of the medial tibial plateau was elevated and stabilized using a cannulated screw and washer. The injured lateral and posterolateral corner (PLC) structures were repaired and augmented by PLC reconstruction. However, the avulsion fracture of Gerdy's tubercle was not fixed because it was minimally displaced and the torn PCL was also not repaired or reconstructed. We present a unique case of pure varus injury to the knee joint. This case contributes to our understanding of the mechanism of knee injury and provides insight regarding appropriate treatment plans for this type of injury.
Adult ; Fibula/*injuries/surgery ; Humans ; *Knee Injuries/complications/surgery ; Male ; *Multiple Trauma/complications/surgery ; *Tibial Fractures/complications/surgery

PURPOSE: The aim of this study was to clarify the clinicopathological differences between T1N1M0 and T2N0M0, particularly the survival rates, and the role of chemotherapy in the stage Ib gastric cancer. METHODS: From January 1992 to December 1999, 118 cases were confirmed as having stage Ib gastric cancer in the Korea University Medical Center. Among them 31 patients were classified as being T1N1M0 and the other 87 cases were T2N0M0. The clinicopathological features and the prognosis were evaluated retrospectively. RESULTS: The overall 5-year survival rate of the stage Ib gastric cancer patients was 94%. Overall 5-year survival rates in T1N1M0 and T2N0M0 were 100% and 91%, respectively. Though T1N1M0 group showed better prognosis, there was no significant difference between two groups (P=0.14). D1, D2, and D2+alpha resections were performed in 28 cases (23.7%), 81 (68.6%), and 9 (7.6%), respectively, and there was no difference in the survival rate (P>0.05). The 5-year survival rates were analyzed according to whether or not they had received chemotherapy. There was a 98% 5-year survival rate with those who had chemotherapy and a 90% 5-year survival rate with those who had not had chemotherapy, but there was no significant difference between them (P=0.18). In the T2N0M0 group, the 5 year survival rates of patients with or without chemotherapy were 97% and 86%, respectively, but there was no significant difference (P=0.16). CONCLUSION: Though T1N1M0 group showed a better prognosis than the T2N0M0 group, there was no significant difference between the two groups (P=0.14). There was no significant survival difference between D1, D2, or D2+alpha procedures. It appears that post operative intravenous chemotherapy does not affect the prognosis of stage Ib gastric cancer, and the role of the chemotherapy in patients with T2N0M0 diseases is minimal.
Academic Medical Centers ; Drug Therapy ; Humans ; Korea ; Prognosis ; Retrospective Studies ; Stomach Neoplasms* ; Survival Rate

A 4-year-old boy presented with a cervical enterogenous cyst manifesting as right arm pain. Neurological examination revealed weakness of his right upper extremities and increased deep tendon reflexes. This isolated, cervical intraspinal enterogenous cyst was treated successfully by posterior laminectomy, intradural exploration, and subtotal resection. He made a good recovery without additional neurological deficits. A brief overview is given of this rare cyst, together with their clinical, pathological, radiological features and associated findings.
Arm ; Child, Preschool ; Humans ; Laminectomy ; Male ; Neurologic Examination ; Reflex, Stretch ; Spine* ; Upper Extremity

The formation of aortic thrombi is an extremely rare complication of acute pancreatitis. Here we report a case of acute pancreatitis complicated by a paraesophageal pseudocyst, necrotizing mediastinitis, and the formation of multiple thrombi in the ascending aorta. The patient was successfully treated by surgical therapy, which included extensive debridement of the mediastinum and removal of the aortic thrombi under cardiopulmonary bypass. Although esophageal resection was not carried out concomitantly, the lesions were resolved and the patient remained free of complications over 2 years of follow-up care.
Aorta ; Cardiopulmonary Bypass ; Debridement ; Esophageal Diseases ; Follow-Up Studies ; Humans ; Mediastinitis* ; Mediastinum ; Pancreatitis* ; Pancreatitis, Acute Necrotizing ; Thrombosis

PURPOSE: Recurrent patellar dislocation is often associated with genu valgum. The purpose of this study was to analyze the short-term results of single-incision, closing-wedge distal femoral osteotomy (CWDFO) combined with medial reefing and lateral release for recurrent patellar instability with genu valgum. MATERIALS AND METHODS: Combined CWDFO/medial reefing/lateral release was performed on 10 knees. Clinical evaluation was based on pre- and postoperative Knee Society Score (KSS) and Kujala patellofemoral score. Radiographic evaluation was performed with reference to the weight-bearing line (WBL), the femorotibial angle (FTA), and the mechanical lateral distal femoral angles in the knee-standing view. RESULTS: At a mean follow-up of 20±11.7 months (range, 12–42 months), KSS scores improved significantly, from 46.7±5.2 preoperatively to 87±4.4 postoperatively (p<0.001), as did the Kujala score, from 44±8 preoperatively to 86.6±6.8 postoperatively (p<0.001). The WBL decreased significantly, from 76±7% preoperatively to 41±11% postoperatively (p<0.001). The FTA was improved significantly, from 12.7±1.7° preoperatively to 4±4° postoperatively (p<0.001), as was the mLDFA, from 83±4° preoperatively to 91±1.3° postoperatively (p<0.001). CONCLUSION: Use of single-incision CWDFO combined with medial reefing and lateral release prevents patellar dislocation, corrects deformity, and improves clinical outcomes.
Congenital Abnormalities ; Follow-Up Studies ; Genu Valgum* ; Knee ; Osteotomy* ; Patellar Dislocation* ; Weight-Bearing

PURPOSE: Plasma fibrin D-dimer (D-dimer) has been suggested as a potential screening marker of acute aortic syndrome (AAS) in the emergency department (ED). However, the appropriate thresholds of D-dimer for AAS have not yet been defined. Moreover, studies reporting determinants of D-dimer concentrations in AAS are scarce. METHODS: Data were collected retrospectively on patientsfor whom a D-dimer assay and enhanced computed tomography (CT) had been performed for differential diagnosis in the ED. The D-dimer assay used during the study was the quantitative latex agglutination assay. The study was conducted in a university ED with an annual census of 67,500 between March 2004 and February 2006. A receiver operating characteristics curve was used to find the optimal cutoff of the D-dimer to predict AAS in the ED. A multivariable linear regression analysis was used to identify factors associated with increased D-dimer concentrations in AAS. RESULTS: The enrolled patients (n=105) were divided into 2 groups according to enhanced CT findings: an AAS group (n=65) and a non-AAS group (n=40). The mean D-dimer level was higher in the AAS group (10.7+/-12.8 ug/mL) than in the non-AAS group (0.6+/-0.3 ug/mL)(p<0.001). The Ddimer test showed a 92.3% sensitivity, an 85.0% specificity, a 90.9% positive predictive value, an 87.2% negative predictive value, and a 90.5% accuracy for detection of AAS at a discriminate level of 1.0 ug/mL. Stratified age, smoking, extent of AAS, complications associated with AAS, and the time interval from symptoms to D-dimer testing were independently associated with D-dimer concentrations in AAS. CONCLUSION: At a discriminate level of 1.0 ug/mL, the Ddimer assay is a sensitive and specific test for the detection of AAS in the ED. D-dimer concentrations in AAS were significantly associated with stratified age, smoking, extent of AAS, complications associated with AAS, and the time interval from symptom onset to testing.
Agglutination ; Aorta ; Censuses ; Diagnosis, Differential ; Emergencies* ; Emergency Service, Hospital* ; Fibrin* ; Humans ; Latex ; Linear Models ; Mass Screening ; Plasma* ; Retrospective Studies ; ROC Curve ; Sensitivity and Specificity ; Smoke ; Smoking ; Universities