The radiologic findings of lumbosacral spine and measurement of lumbosacral angle were analysed in 238 with backache and 102 without backache which were visited at Chungnam National University from March 1980 to July 1981.
The measurement of lumbosacral angle was based on a method of Fergson. The results obtained were as follows:
1. The age group of 18 to 29 years was most common in bachacke group and the male was affected more freqently than the female with the ratio of 1. 9 to 1.
2. In patients with backache, the overall mean lumbosacral angles were 44. 2 ± 2. 6° in male and 35.8±2.0° in female.
In patients without backache, in control group, the overall mean lumbosacral angles were 32.6±0.7° in male and 33.4±1.4° in female.
3. In control group, difference of means between male and female was about 1° In patients with backache, the overall mean lumbosacral angles were increased about 12° in male and 2° in female than control group.
In patients with and without backache, no significant difference of lumbosacral angle between the 4 age groups was present.
4. In backache group, increased lordosis was more common and increased lumbosacral angle than the decreased lordosis.
5. In backache group, lumbosacral angle of abnormal radiologic findings in lumbosacral spine was significantly increased than control group.
6. In patients with backache, radiologic findings and its lumbosacral angles were a lumbosacral anomaly 56 cases(23. 5%): 46. 9°, increased lumbar lordosis 46 cases(19. 2%): 48. 1°, osteoarthritis 44 cases(18. 5%) :40. 8°, decreased lumbar lordosis 30cases(12.6%) : 20. 9°, in order. And these radiologic findings were similar with many other authors.
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