Effect of Degenerative Change of Lumbar Spine on Lateral Bone Mineral Density Measurement Using Dual EnergyX-ray Absorptiometry: Usefulness of Measurement in the Supine Lateral Projection.
10.3348/jkrs.1998.39.5.997
- Author:
Ja Young SEO
1
;
Yun Young CHOI
;
Sukshin CHO
;
Su Hyeon CHO
;
Jin Man JO
Author Information
1. Department of Nuclear Medicine, College of Medicine, Hanyang University.
- Publication Type:Original Article
- Keywords:
Bones, mineralization;
Spine, mineralization;
Aging;
Osteoporosis
- MeSH:
Aging;
Bone Density*;
Bone Diseases, Metabolic;
Female;
Humans;
Osteoporosis;
Spine*
- From:Journal of the Korean Radiological Society
1998;39(5):997-1002
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To evaluate the usefulness of supine lateral bone mineral density (BMD) measurement using DXA bycomparing AP and lateral spine BMD in patients with degenerative change. MATERIALS AND METHODS: Six hundred andseventy-two women underwent AP and lateral BMD measurement of L-spine, using DXA. Spur changes and end-platesclerosis were considered as degenerative change, and osteoporosis was defined according to WHO criteria. Theratio of mid-lateral BMD to AP BMD was calculated and the differences in ratio were analyzed in the degenerativegroup and controls, according to aging and osteoporosis, using the t test and ANOVA. The correlation coefficiencybetween aging and AP BMD and lateral BMD, respectively, was calculated. RESULT: The mLat/AP ratio in the controland degenerative group was 0.710(0.005 / 0.622(0.028 (p=0.003) in the 40-49-year-old group, 0.663(0.006 /0.612(0.016 (p=0.002) in the 50-59-year-old group, 0.626(0.015 / 0.552(0.023 (p=0.007) in the 60-69 year-oldgroup, and 0.717(0.028 / 0.600(0.045 (p=0.076) in those aged over 70. The ratio was 0.656(0.015 / 0.598(0.038(p=0.099) in osteoporosis, 0.684(0.008 / 0.596(0.016 (p=0.000) in osteopenia, and 0.688(0.005 / 0.583(0.019(p=0.000) in normal subjects, showing that lateral BMD is more sensitive than AP BMD, especially in thedegenerative group. There was negative correlation between aging and AP BMD(r= -0.545), lateral BMD(r= -0.571),and mid-lateral BMD(r=-0.583). CONCLUSION: In a selective group of patients with degenerative change, supinelateral BMD measurement of L-spine is useful.
