المؤلفون: Basharath Husseni Khan, Ajit Singh, Girish Menon, Tom Devasia

المصدر: Journal of Clinical and Diagnostic Research, Vol 12, Iss 4, Pp OJ01-OJ02 (2018)

مصطلحات موضوعية: cervical instability, dysmorphic face, foramen magnum decompression, ligamentous laxity, telecanthus, Medicine

وصف الملف: electronic resource

العلاقة: https://jcdr.net/articles/PDF/11280/29046_CETest(RA1)_F(AP)_PF1(MJ_AP)_PFA(AnG)_PB(MJ_AP)_PN(AP).pdf; https://doaj.org/toc/2249-782XTest; https://doaj.org/toc/0973-709XTest

الوصول الحر: https://doaj.org/article/766e8df95aef4c59b47cce8fa4669fafTest

المؤلفون: Akhilanand Chaurasia, Ranjitkumar Patil, Gaurav Katheriya

المصدر: Journal of Clinical and Diagnostic Research, Vol 12, Iss 2, Pp ZC05-ZC08 (2018)

مصطلحات موضوعية: foramen magnum, skull, synchondrosis, Medicine

الوصف: Introduction: The clivus is the part of the skull base situated between the foramen magnum and the dorsum sellae. It results from the fusion of the synchondrosis between the basioccipital and exoccipital bones which grows and ossify from three to 25 years of age to form the basisphenoid and the basiocciput. The clivus is a dense part of skull, so mostly it is recovered intact from a damaged or incinerated skull. So, clivus can be used for morphometeric evaluation of humans. Aim: To determine the age and sex related changes in clivus length and clivus width. The clivus width and clivus length was also evaluated for age prediction of individuals. Material and Methods: The CBCT images of 150 study subjects obtained from Carestream 9000cc (USA) CBCT machine at 90 Kvp, 4 mA for 11.3 seconds at FOV (17”×13.5”), voxel size of 300 in the age group of six to 17 years (76 male, 74 female) were chosen prospectively. The clivus length and clivus width were measured using Trophy Dicom Ink software programme on axial and saggital images (DICOM images). Categorical variables was presented in number and percentage (%) and continuous variables was presented as mean and SD. Unpaired t-test and ANOVA test was used for comparison between groups. Pearson correlation coefficients were used to evaluate the correlations. The data analysis was done using SPSS version 21.0. Results: Irrespective of age and sex, the mean clivus width was 28.8±3.98 and mean clivus length was 42.7±3.98. Statistically no significant difference was observed between male and female (p-value>0.05) with clivus width. However, the clivus length was statistically significant (p

وصف الملف: electronic resource

العلاقة: https://jcdr.net/articles/PDF/11158/32373_CETest(_)_F(AK)_PF1_(BT_PB_RA_SL)_PFA(MJ_AnG)_PN(SL).pdf; https://doaj.org/toc/2249-782XTest; https://doaj.org/toc/0973-709XTest

الوصول الحر: https://doaj.org/article/9850c5f3f8e24555a1cbde3445a4a1f7Test

المؤلفون: D. K. Sharma, Deepak Sharma, Vandana Sharma

المصدر: Journal of Clinical and Diagnostic Research, Vol 11, Iss 6, Pp AC01-AC03 (2017)

مصطلحات موضوعية: compression, foramen magnum, inclination, variation, Medicine

الوصف: Introduction: Atlantooccipital fusion or occipitalization of atlas or assimilation of atlas is a rare or uncommon abnormality recorded in anatomical, morphological and radiological studies. It is usually associated with reduction in dimensions of foramen magnum leading to acute or chronic neurovascular compression and clinical manifestations of varying severity. Though, atlantooccipital fusion is rare but it is important and significant for the physicians and surgeons for their diagnostic and therapeutic approach. Aim: To know the prevalence of atlantooccipital fusion in South Asian population predominantly in Central India and its embryological and clinical correlation by reviewing literature and earlier studies. Materials and Methods: This study included careful examination for the atlantooccipital fusion on total 192 human skulls of both genders, available in the Department of Anatomy AIIMS Raipur, Chhattisgarh, India, Department of Anatomy and Forensic Medicine of Gandhi Medical Colledge, Bhopal, Madhya Pradesh, India and Pt. Jawahar Lal Nehru Memorial Medical College, Raipur. Morphometric measurements of the abnormal skulls were done, analysed and recorded. Observations and findings of this study were correlated embryologically and clinically with the results and claims of previous studies and literature, and accordingly the conclusions were drawn. Results: We found only two skulls with atlantooccipital fusion, in overall study of 192 skulls. The first skull showed incomplete atlantooccipital fusion on the left side with little right lateral inclination and missing posterior tubercle/spinous process and adjoining part of posterior arch of atlas, whereas the second skull showed complete atlantooccipital fusion. Conclusion: We conclude that the prevalence of atlantooccipital fusion including complete and incomplete fusion was 1.04%, which is higher than the proclaimed prevalence rate of 0.12% to 0.72%, by the previous studies. In accordance with the fact that the atlantooccipital fusion represents a synostosis between the atlas and the occipital bone due to developmental abnormal segmentation of cranial part of paraxial mesoderm and abnormal fusion between segments of caudal occipital and cranial cervical sclerotomes, we would like to thereby assert that the fusion associated with the reduction in dimensions of foramen magnum (reduction also seen in our study) is definitely significant for diagnostic and therapeutic purposes to clinicians.

وصف الملف: electronic resource

العلاقة: https://jcdr.net/articles/PDF/9999/26183_CETest[Ra]_F(Sh)_PF1(SY_SS)_PFA(P_SY).pdf; https://doaj.org/toc/2249-782XTest; https://doaj.org/toc/0973-709XTest

الوصول الحر: https://doaj.org/article/419c64dc5f1142c9b9152eaa69ffa613Test