Normative values of lumbar spine mineral density and fracture threshold in Japanese measured by dual photon absorptiometry based on scinticamera methods (Dualomex HC-1).

Autor: Hayashi, Yasufumi, Takahashi, Hideaki, Orimo, Hajime, Uchino, Naoki, Inoue, Tetsuo, Konishi, Junji, Okumura, Hideo, Morii, Hirotoshi, Fujita, Takuo, Morita, Rikushi, Fukunaga, Masao, Hosoda, Yutaka, Yamamoto, Kichizo, Norimatsu, Hiromichi
Zdroj: Journal of Bone & Mineral Metabolism; Dec1990, Vol. 8 Issue 3, p30-36, 7p
Abstrakt: Using a dual photon absorptiometer Dualomex HC-1 based on the scinticamera system utilizingGd, bone density of the lumbar vertebrae was measured to set up normative values for each group in both sexes along with fracture threshold. Bone density of the lumbar spine was measured in 712 male and female subjects ranging in age between 16 and 96 years at 11 medical instructions all over Japan, to establish normative values for each age and sex group. The peak bone mass of 0.75 g/cm was reached in the 30s in males and that of 0.76 g/cm in the 40s in females. The lumbar spine density obtained by this method showed good parallelism with the Singh index and degree of lumbar spine bone loss according to Jikei University method. A high correlation was also found between the bone density obtained by this method and that obtained by Lunar DP-4 (r=0.902, n=28). Spinal compression fracture was found in about 2/3 of the subjects with L2 - L4 bone density measured in the anterior-posterior direction of less than 0.58 g/cm and 3/4 of those with the corresponding value less than 0.49 g/cm. Bone density less than 0.49 g/cm was therefore tentatively called the range predicting fracture (dangerous range) and that between 0.49 and 0.58 as the range warning fracture (warning range). [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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