No abstract available.
Sertoli-Leydig Cell Tumor*

No abstract available.
Lung*

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.
Gastroenteritis* ; Humans* ; Rotavirus*

No abstract available.
Stents

No abstract available.
Seizures, Febrile*

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

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

PURPOSE: To identify the recovery of joint movement and decrease in pain through the radiological findings after open synovectomy for the elbow with rheumatoid arthritis which was not cured by medication. MATERIALS AND METHODS: From 1997 to 2008, the research on open synovectomy for the elbow with rheumatoid arthritis was done in 19 patients with 21 cases whose average follow-up was 12 months. Despite the medical treatment, the indication of operation was towards the patients with Larsen grade I~III rheumatoid arthritis whose joint swelling and pain had not been improved. Also, the indication of operation included the patients with Larsen grade IV who rejected joint replacement or needed to postpone the operation due to young age. Main symptom was pain in all cases; Preoperative flexion contracture and flexion-extension movement on average was 29 degree and 86 degree, respectively.Postoperative radiological and physical examination were done; Visual analogue scale and Mayo elbow performance score were measured. RESULTS: Joint swelling recurred in two cases (9.5%). However, the size of swelling was mild compared to preoperative condition. Preoperative total mean flexion contracture was 29 degree (10~45 degree) and total mean flexion-extension movement was 86 degree (60~135degree). Last follow-up total mean flexion contracture was 18 degree (5~50 degree) and total mean flexion movement was 102 degree (35~150 degree). Statistically, the increase of range of joint movement was not significant. Radiologically, there were 11 cases(52.3%) showing no changes in preoperative and postoperative grade while there were 10 cases(47.6%) with increase in grade. As for VAS score, total mean preoperative score was 5 and postoperative score was 2.3(0~8) showing less pain than the past. After statistical analysis separated by Grade I, II, III and IV, last follow-up of VAS score, Mayo elbow performance score and elbow joint movement showed no statistical difference compared to Larsen grade (p=0.075). CONCLUSIONS: Open Synovectomy for elbow with rheumatoid arthritis can not stop radiological progress, and the increase in range of joint movement is not statistically meaningful. However the operation displays clinical improvement such as decrease in pain and increase in range of joint movement.
Arthritis, Rheumatoid ; Contracture ; Elbow ; Elbow Joint ; Follow-Up Studies ; Humans ; Joints ; Physical Examination ; Synovitis