The growing interest in transpedicular screw fixation in the present time has warranted improved knowledge in morphometric details of the pedicles. The key to successful surgery is a clear knowledge of intracanal anatomy and the location of the pedicle. OBJECTIVES: To estimate and compare width and Height of pedicles of typical and atypical lumbar vertebra. To estimate and compare interpedicular distance of typical and atypical lumbar vertebra. MATERIAL AND METHODS: 119 dry human lumbar vertebrae of undetermined gender and age were selected for the study. The various parameters of pedicles were measured. RESULTS: The pedicle width at the midpoint of the pedicle on the right side ranged from 4.2-15.6 mm with a mean of 8.63±2.18 mm and on the left side ranged from 4.1-15.2 mm with a mean of 8.93±2.27 mm in typical vertebrae. The pedicle height at the midpoint of the pedicle on the right side ranged from 9.96-17.4 mm with a mean of 13.95±1.46 mm and on the left side ranged from 9.98-18.9 mm with a mean of 13.93±1.59 mm in typical vertebra. The interpedicular distance ranged from 9.9mm to 25.4mm with a mean of 20.41±2.32 in typical vertebra. The pedicle width at the midpoint of the pedicle on the right side ranged from 10.8-21.5 mm with a mean of 17.69±2.57 mm and on the left side ranged from 14.4-20.9mm with a mean of 17.68±2.02 mm in Atypical vertebrae. The pedicle height at the midpoint of the pedicle on the right side ranged from 11.9-17.6 mm with a mean of 14.7±1.69 mm and on the left side ranged from 12.1-17.2 mm with a mean of 14.48±1.73mm in typical vertebrae. The interpedicular distance ranged from 23.4mm to 28mm with a mean of 25.37±1.58 in Atypical vertebra. CONCLUSION: There is significant correlation between height and width of right and left side of typical and atypical vertebrae.