J Korean Neurosurg Soc.  1995 Sep;24(9):1061-1064.

The Normal Angulation and the Translation on Dynamic Lumbar Radiography in Korean

• Kim YS
• Jun BY

Abstract

The authors measured the translation and the angulation on dynamic lumber radiography to get Korean standard data in 53 normal Korean male aged 25 to 30 without any back problem. Mean angulations on L2/3, L3/4, L4/5 and L5/S1 interspace were -2.6 degrees, -3.3 degrees, -3.4 degrees and 2.6 degrees on flexion and 11.6 degrees, 12.2 degrees, 14.2 degrees and 19.6 degrees on extension, respectively. Mean sums of angulations on flexion and extension on L2/3, L3/4, L4/5 and L5/S1 interspace were 14.1 degrees, 5.5 degrees, 17.6 degrees and 16.9 degrees, respectively. Mean translations, expressed in percentage of vertebral AP diameter, on L2/3, L3/4, L4/5 and L5/S1 interspace were 0.4%, 0.6%, 0.2% and 6% on flexion and 4.5%, 5.2%, 5.9% and 7.3% on extension, respectively. We hope that these data would help to make decision on lumbar segmental instability in conjunction with other studies.

Keyword

Angulation; Translation

MeSH Terms

Hope
Humans
Male
Radiography*
Translations