1. To introduce the measurement of the midpedicular distance (MPD) as an alternative to the interpedicular distance (IPD). 2. To measure the IPD and MPD of T11, T12, L1 and L2 vertebrae on anteroposterior (AP) plain film of the normal spine. 3. To study the relationship of the IPD and MPD of T11 to L2 of the normal spine.
STUDY DESIGN… (More)