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Journal of the Korean Academy of Rehabilitation Medicine 1997;21(2):368-375.
Lumbar Lordosis in Low Back Pain Patients.
Joo, Byung Gyu , Chun, Min Ho , Ha, Sang Bae
Department of Rehabilitation Medicine, Asan Medical Center, University of Ulsan College of Medicine, Korea.
요통환자에서 요추 전만도의 변화에 관한 연구
주병규, 전민호, 하상배
울산대학교 의과대학 서울중앙병원 재활의학과
Abstract

The purposes of this study were to identify lumbar lordosis in low back pain patients and to investigate differences in lumbar lordosis in low back pain patients according to etiologies.

On the basis of the findings of spinal roentgenogram, MRI, and SPECT imagies, the patients were divided into four groups; 1) facet syndrome with facet joint inflammation or degenerative change, 2) disc herniation including disc bulging or extrusion, 3) combined low back pain accompaning facet joint lesion with disc herniation, 4) simple low back pain with no abnormal imaging findings.

There were statistically significant decrease in low back pain patients compared with normal controls in terms of lumbosacral curvature. No sex and age differences were observed within low back pain patients and normal controls in terms of lumbosacral curvature. The review disclosed a significant decrease of the lumbosacral angle in order of simple low back pain, disc herniation, combined low back pain compared with normal controls. But facet syndrome patients showed no change of lumbosacral angle. Patients with disc bulging showed no significant decrease of lumbosacral angle compared with normal controls but patients with disc extrusion showed significant decrease.

It is believed that the decrease of lumbosacral angle in low back patients results from a pathokinesiological effort to keep facet joint from pressure stemed from facet overlying and to minimize the shearing force over lumbosacral joint. The facet joint stiffness due to inflammation may play a major role in no change of lumbosacral angle in facet syndrome patients. In conclusion, different causes of low back pain should be taken into consideration for the assessment of lumbosacral angle.

Key Words: Lumbar lordosis, Lumbosacral angle, Low back pain, Facet syndrome, Herniated disc


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