Vol. 4, Issue 11, Part D (2018)

Abstract
The spinal cord is a vital organ in human body. Dura mater is outermost layer extends from foramen magnum to lower border of S2 vertebra. Dural sac length was measured from for a man magnum till its termination. Space it & b/n vertebral canal termed epidural space. Because of variation in termination in dural sac length of dural sac may varied it also varies according to gender and race. In present study MRI images of 71 individuals in the age group of 20-65 years in which 38 males & 33 females taken & length of dural sac measured with help of di com works software. The mean dural length of males was 57.39 cm and SD was 2.541 and it ranged from 52.20 cm to 61.80 cm and in females the mean dural sac length was 52.78 cm and SD was 1.345 found. The present study is an attempt to provide data base for a range of dural sac length, in Indian population on MRI which is helpful in different clinical procedures.