Pedicle screws are used with an increasing frequency for fixation in spinal fractures. Thus it is imperative to have adequate knowledge of morphometry of lumbar pedicles. Aim: To measure various dimensions of pedicles in lumbar vertebrae and to suggest dimensions for pedicular implants in the Indian population and to improve the pedicular screw placement technique. Methods and Materials: Two hundred and ten dry human lumbar vertebrae of unspecified gender and age obtained from Department of Anatomy of Medical colleges. The lumbar vertebrae were divided into two groups typical (L1-4) and atypical (L5) depending on the atypical features of L5. Various parameters of pedicles were measured. Results and Conclusions: In typical Lumbar vertebra Pedicle width was almost always less than the pedicle height. In atypical Lumbar vertebra pedicle height is lesser than typical lumbar vertebra. The chord length is more than 35mm in all lumbar vertebras. The measurement in this study will help in finding the appropriate screw to be implanted in the lumbar region of the spine for spine immobilization and fixation.

Keyword: Lumbar Vertebra; Chord Length; Pedicle.