No abstract available.
Hirschsprung Disease

No abstract available.
Colorectal Neoplasms* ; Follow-Up Studies*

No abstract available.
Colorectal Neoplasms* ; Follow-Up Studies*

We studied the intradural variations of spinal nerve rootlets in 100 cases of Korean adults. The results of the study are as follows ; 1. The incidence of intrasegmental variations (abberrant rootlets) is high in cervical segments and decreased toward lumbosacral segments. The incidence is higher in posterior rootlets than anterior, except cervical sesments. 2. The incidence of intersegmental variations is higher in posterior rootlets than anterior, and generally high in cervical and lumbar segments. 3. We divide the intersegmental variations into supernumerary rootlets, dividing rootlets, and anastomosing rootlets, and among them the incidence of anastomosing rootlets is higher. We divide the anastomosing rootlets into parallel anastomosing rootlets, uniting anastomosing rootlets, and rearrangement anastomosing rootlets. 4. The anterior to posterior anastomosing of spinal nerve rootlet is present in 4 of cases studied.
Adult ; Humans ; Incidence ; Spinal Nerves*

No abstract available.
Tibia*

The Graf system has supposed advantages with its flexible nature, as compared with rigid fixation. But there have been no reports about effects in the adjacent motion segment after soft stabilization. The purpose of this study was to evaluate the radiologic changes occuring in the adjacent segments of the Graf system and to assess its ability stabilizing the lumbar spine. A retrospective review of radiographs and medical records was undertaken in 32 cases who had been treated with the Graf system in degenerative lumbar spinal disorders. The average age at operation was 52.5 years and the average follow up period was 49.6 months. The results of this study were as follows: clinical assesments based on the Kirkaldy-Willis criteria revealed excellent in 13 cases (40.6%), good in 16 cases (50%), fair in 2 cases (6.3%) and poor in 1 case (3.1%). Radiologically we analysed the adjacent segments in 25 cases except the cases which did not have the correspondence between the clinical findings and the radiological findings, and the fixated segments in 32 cases. The acceleration of degenerative changes were found in the above adjacent segments in 11 cases (44%) and in the below adjacent segments in 5 cases (27.7%). Also, those changes were found in the fixated segments with discectomy in 19 cases (50%) and in the fixated segments without discectomy in 9 cases (37.5%). In conclusion, we think that the Graf system in a lumbar region may biomechanically influence the adjacent segments. The mechanical effects of the device could be changed by the polyester bands which were followed for a longer period of time in the fixated segments. Therefore, randomized prospective studies comparing the Graf system to other treatement methods could provide clear indications for lumbar spinal disorders.
Acceleration ; Diskectomy ; Equidae ; Follow-Up Studies ; Lumbosacral Region ; Medical Records ; Polyesters ; Retrospective Studies ; Spine

No abstract available.
Electric Stimulation*

PURPOSE: The Purposes of this study are to identify the circulating etiologic viruses of acute lower respiratory tract infection in children and to understand the relation with clinical diagnosis. METHODS: We obtained a total of 418 nasopharyngeal aspirates from children admitted for their acute lower respiratory tract infections at three tertiary hospitals in Seoul from September 2008 to March 2009. We performed multiplex RT-PCR to identify 14 etiologic viruses and analyzed their emerging patterns and clinical features. RESULTS: Average age of patients was 16.4 months old and the ratio of male to female was 1.36. Viruses were detected in 56.2% of a total of 418 samples. Respiratory syncytial virus (35%) was the most frequently detected and followed by human rhinovirus (22%), human bocavirus, adenovirus, human metapneumovirus, parainfluenza virus, influenza virus and human coronavirus. Co-infection reached 21.9% of positive patients. CONCLUSION: When we manage the patients with acute lower respiratory infectious diseases, we should remind the role of various viral pathogens, which might be circulating by seasons and by local areas.
Adenoviruses, Human ; Child ; Coinfection ; Communicable Diseases ; Coronavirus ; Female ; Human bocavirus ; Humans ; Male ; Metapneumovirus ; Orthomyxoviridae ; Paramyxoviridae Infections ; Respiratory Syncytial Viruses ; Respiratory System ; Respiratory Tract Infections ; Rhinovirus ; Seasons ; Tertiary Care Centers ; Viruses

It is essential to define the mechanical and morphological characteristics of bone in undrestanding the mechanism and treatment of fractrues of bone. We already reported the results of bending study in 1983 and tension study in 1987 to assess the mechanical and morphological changes of bone according to the growth. Following these studies, we performed torsion study on growing long bone to have better understanding of the characteristics of bone. In order to assess the mechanical and morphological properties of fracture of growing bone by torsion, we divided 100 Newzealand white rabbits(40 1-month-old rabbits, 20 3-months old rabbits and 40 5-months-old rabbits) into 6 experimental groups according to their maturity and side : Group 1(right femur of 1 month old), Group 2( left femur of 1 month old), Group 3(right femur of 3 months old), Group 4(left femur of 3 months old), Group 5(right femur of 5 months old), Group 6(left femur of 5 months old). Each group of femora were loaded in torsion with varing distance and the following results were obtained: 1. Fracture shapes were composed of the spiral component and the vertical component which connected the two ends of the spiral component. 2. Younger bones revealed greater deformation angle and apex angle but less obliquity than older bones. 3. When the gap between the grips were lengthened three times, there was a very signi ficant increase of deformation angle and obliquity but apex angle was decreased and the fracture angle showed little change. 4. It was necessary to measure the apex angle and obliquity in the morphological description of fractures by torsion. 5. We observed when a certain degree of angular deformity was applied on a bone at a certain age, the fracture was occured through the tension failure regardless of types of loading forces.
Congenital Abnormalities ; Femur ; Hand Strength ; Humans ; Infant, Newborn ; Rabbits

Dermatofibrosarcoma protuberans (DFSP) is a rare, distinctive cutaneous tumor, which consists of spindle shaped ceils arranged in densely packed interlacing bundles with the storiform or cartwheel pattern. Histologically, it resembles deep growing dermatofibroma, nodular fasciitis, neurofibroma and neural sheath tumors. DFSP is one of t.he connective tissue tumors which is difficult. to diagnose histologically as well as clinically. Recently, the immunochemical staining with a monoclonal antibody to CD34 is reported to give assistance in the clear differential diagnosis of DFSP from other fibrous or neural tumors. Herein, three cases of DFSP were stained by immunohistochemical staining with S-100 protein, vimentin, factor VIII and anti-CD34 antibody in order to assess the use of anti-CD34 in the differential diagnosis of DFSP.
Connective Tissue ; Dermatofibrosarcoma* ; Diagnosis, Differential ; Factor VIII ; Fasciitis ; Histiocytoma, Benign Fibrous ; Neurofibroma ; S100 Proteins ; Vimentin