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Journal of Korean Neurosurgical Society 1995;24(9): 1061-1064. |
| The Normal Angulation and the Translation on Dynamic Lumbar Radiography in Korean. |
| Young Soo Kim, Byung Yoon Jun |
| Department of Neurosurgery, Yonsei University College of Medicine, Seoul, Korea. |
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| ABSTRACT |
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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. |
| Key Words:
Angulation; Translation |
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