J Korean Radiol Soc.
1995 Jun;32(6):971-974.
Necessity of Site-specific BMD Measurements using Dual X-ray Absorptiometry
Abstract
- PURPOSE
To determine the necessity of site-specific bone mineral density(BMD) measurement and the
difference between the BMD of the two femora using DXA in the evaluation of osteoporosis.
MATERIALS & METHODS: Total BMD and regional BMD(Lumbar spine, femoral neck, Ward's area,
intertrochanter area) were measured on seventy-eight healthy persons without previons diseases, and the
statistical significance analyzed.
RESULTS
Total BMD did not reliably reflect the site-specific BMD. There was a high correlation between BMD
in opposing femora. Correlation coefficients between the femoral neck, Ward's area, trochanter area were 0.
939, 0.874 and 0.916 respectively.
CONCLUSION
We conclude that a measuremnt of site-specific BMD is necessory because the total BMD can
not reliably predict the regional BMD.
The measurement of BMD in one femur can predict the BMD of the contralateral femur. If there is no history
of femoral neck disease, unilateral BMD measurement is recommended for femoral evaluation.