Study of Normal Sudanese Cervical and Lumbar Curvature Angle Using Cobb Method in CT Imaging

Abstract

The purpose of this study was to standardize the normal values as reference for Cobb angle of cervical and lumbar vertebrae in normal Sudanese subjects using Computerized Tomography (CT). This study was done at Al-Zytouna specialized hospital and Royal Care hospital from august 2015 to June 2018. The sample (A) 200 lateral scouts CT scan of lumbar spine were obtained from (107males, 93 females).their ages were ranged from (21-80) years old, the sample (B) 90 lateral scouts CT scan of cervical spine were obtained from (66 males, 24 females).their ages were ranged from(22-60) years old. Toshiba CT scan machine was used with KV120- MA10 -50. The Cobb angles were measured from L1 to L5 for both gender and correlated to their ages. The mean Cobb angle of lumbar vertebral in male was (30.590) and in female was (35.650).There was differences in Cobb angle of lumbar spine between males and females. The mean Cobb angles of lumbar vertebrae in males were found to be (4.770), (4.800), (4.640), (4.990), (7.160) and in females (5.420), (5.340), (5.280) (5.660), (8.050) for L1, L2, L3, L4 and L5 respectively. There were significant differences in the Cobb angle of lumbar spine between both genders at p=0.000. The mean Cobb angle of cervical vertebral in males were found to be (5.420), (5.080), (5.010) and in females (4.450), (4.270), (4.090) for C3, C4, and C5 respectively. There were significant differences in Cobb angle of cervical spine between the both genders at p=0.000. The mean Cobb angle end plate of the cervical and lumbar vertebrae differs significantly from males and females' Sudanese subjects.