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Year : 2014  |  Volume : 9  |  Issue : 4  |  Page : 153-158

Sagittal diameter of the lumbosacral spinal canal in normal (asymptomatic) adult Sudanese population 2014

1 Department of Anatomy, Faculty of Medicine, National University, Khartoum 11111, Sudan
2 Department of Radiology, Faculty of Medicine, National University, Khartoum 11111, Sudan
3 Department of Radiology, National Cancer Institute, Gezira University, Wad Madani, Sudan

Correspondence Address:
Yasir Ahmed Mohamed Elhassan
Department of Anatomy, Faculty of Medicine, National University, P. O. Box 3783, Khartoum 11111
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DOI: 10.4103/1858-5000.153030

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Background: Although spinal stenosis has been recognized for many years as a clinical diagnosis, it has yet to be exactly defined and agreed upon. This lack of definition leads to difficulties in comparing and interpreting studies of prevalence, incidence and treatment. This could in part be to difference in spinal canal dimensions that exist between population groups. This is essential for the rational design and development of spinal implants and instrumentation such as pedicle screws and, in particular, with the evolution towards robotic surgery. Objectives: This study aims to determine the normal Anteroposterior diameter of the spinal canal in lumbosacral region among the adult Sudanese population using the MRI and to determine whether there are any differences related to age, sex and race regarding this diameter. Material and Method: The study was descriptive cross-sectional analytical study. MRI measurements were performed in Ribat Teaching Hospital for 142 normal Sudanese subjects to study the lumbosacral region. The data was collected through check list, analyzed by SPSS. Results: The majority of the participants were male (57%), young between 20and 28 years of age with mean height 168cm and mean weight 66 kilogram. The results showed that the longest mean AP diameter was at L1 (17.5±2.0mm) in male while (18.1±2.7) in female. The shortest mean AP diameter was at S1 (15.9±3.2mm) in male and (15.4±3.2) in female. The AP diameter gradually decreased from L1 to S1.there is no significant difference between both sexes. There is significant difference between people live in different zones. There is association between age, height and weight and the AP canal diameter.

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