No abstract available.
Seizures, Febrile*

No abstract available.
Sertoli-Leydig Cell Tumor*

PURPOSE: Use of inappropriate statistical methods may lead to incorrect conclusions and a waste of valuable resources. The goal of this study was to assess the frequency and the types of several common statistical errors in the published articles of the Journal of the Korean Academy of Prosthodontics (JKAP) for a 5-year period. MATERIALS AND METHODS: Of 336 articles in the JKAP published from 2006 to 2010, 255 articles using statistics were reviewed and classified by statistical method and year. The frequency and types of the statistical methods were examined, and the statistical errors were evaluated by the appropriateness of the experimental design, assumption check, independent outcomes, proper sample size and suitable use of statistical method. Statistical guidelines were completed based on the appropriateness. RESULTS: Of the 255 articles using statistics, 193 articles (75.9%) used inferential statistics and 153 articles used SPSS statistical software (60.0%). Of the articles using inferential statistics, the three most frequently used statistical methods were ANOVA (41.5%), t-test (20.0%), and the nonparametric method (16.9%). The average rate of statistical errors was 61.2 percent, similar to the rate reported by several studies completed for the medical journal. CONCLUSION: After the whole analysis of the difference among the groups, post-hoc tests for the pairwise comparisons are required. The optimal sample size calculation is an essential part of this study protocol. To minimize the occurrence of statistical errors, statistical guidelines were developed according to each statistical test procedure and will contribute to the academic improvement in the JKAP.
Prosthodontics ; Research Design ; Sample Size

PURPOSE: To describe MR findings of recurred giant cell tumor of bone. MATERIALS AND METHODS: MR imagings of ten cases of pathologically proven recurrence of giant cell tumor were retrospectively analyzed. Location of recurrence, multiplicity of recurred tumor, signal intensity and homogeneity, pattern of gadolinium enhancement, soft tissue and articular surface involvement were evaluated. RESULTS: Tumors were located in peripheral portion of previous operation site(80%). Six cases recurred as multiple lesions. Tumor showed low signal intensity on T1 weighted images(100%), high signal intensity on T2 weighted images(100%) and inhomogeneous peripheral rim enhancing pattern(75%). Soft tissue and articular surface involvement were also demonstrated. CONCLUSION: We concluded that characteristic MR findings of recurred giant cell tumor could be helpful in early detection and precise evaluation of tumor recurrence.
Gadolinium ; Giant Cell Tumor of Bone ; Giant Cell Tumors* ; Giant Cells* ; Recurrence ; Retrospective Studies

No abstract available.
Lung*

No abstract available.
Gastroenteritis* ; Humans* ; Rotavirus*

No abstract available.
Stents

STUDY DESIGN: A case report. OBJECTIVES: To report a rare case of intradural disc herniation (IDH) around conus medullaris. SUMMARY OF LITERATURE REVIEW: IDH is rare with an incidence of less than 1% of all lumbar disc herniations. It is important to differentiate IDH from other condition with accurate diagnosis and subsequent surgical treatment. IDH has a higher risk of neurologic deficit, like conus medullaris syndrome and cauda equina syndrome. MATERIALS AND METHODS: A 62 year-old male was affected by lumbar back pain radiating to the anterolateral aspect of the right thigh for 5 days. MRI showed a mass that existed on the anterior portion of the conus medullaris. We performed partial laminectomy at the L1-L2level. The mass located anteriorly in the intradural space was eliminated after durotomy by a posterior approach. RESULTS: We confirmed the IDH for histopathology. CONCLUSIONS: IDH usually needs accurate differential diagnosis. Preoperative MRI scans are necessary to differentiate IDH from other intradural lesions. The confirmative diagnosis can be done only in the operative field.
Back Pain ; Conus Snail ; Diagnosis ; Diagnosis, Differential ; Humans ; Incidence ; Laminectomy ; Magnetic Resonance Imaging ; Male ; Neurologic Manifestations ; Polyradiculopathy ; Spinal Cord Compression ; Thigh

STUDY DESIGN: Retrospective study. OBJECTIVES: To compare serum vitamin D levels in elderly patients with or without osteoporotic spinal compression fractures (OSCFs) and to identify relationships between the serum vitamin D level and other variables, such as age, bone mineral density (BMD), and bone turnover markers (osteocalcin and C-telopeptide). SUMMARY OF LITERATURE REVIEW: Vitamin D plays a key role in calcium metabolism in the bone tissue. Vitamin D deficiency can lead to decreased BMD and an increased risk of falls and of osteoporotic fractures. MATERIALS AND METHODS: We retrospectively reviewed the medical records of 95 elderly patients (≥60 years) with OSCFs (fracture group) and 118 subjects who had been diagnosed with osteoporosis without OSCFs (control group). Serum vitamin D levels were contrasted between the two groups taking into account other factors such as patient age, sex, and seasonal variations. For all the patients, we also evaluated the correlation between the vitamin D level and the patient age, BMD, and bone turnover markers. RESULTS: The mean of the serum 25(OH) vitamin D3 levels was significantly lower in the fracture group than in the control group. There were significant differences in the 25(OH) vitamin D3 levels in autumn. In all patients, the mean serum 25(OH) vitamin D3 levels were the highest in autumn and the lowest in spring. Furthermore, the mean serum 25(OH) vitamin D3 levels were significantly correlated with patient age and BMD. CONCLUSIONS: A low serum vitamin D level might be a risk factor of OSCFs in elderly patients.
Aged ; Bone and Bones ; Bone Density ; Calcitriol ; Calcium ; Case-Control Studies* ; Cholecalciferol ; Fractures, Compression ; Humans ; Medical Records ; Metabolism ; Osteoporosis ; Osteoporotic Fractures ; Retrospective Studies ; Risk Factors ; Seasons ; Spinal Fractures ; Spine* ; Vitamin D Deficiency ; Vitamin D* ; Vitamins*

No abstract available.
Survival Rate* ; Uterine Cervical Neoplasms*