Background Assessment of postmenopausal osteoporosis is usually delayed due to central densitometers’ lack in some areas. Peripheral densitometers have been proposed for osteoporosis screening.
Objectives To assess the relationship between bone mineral density (BMD) measurements in post-menopausal women using central (DEXA) and peripheral (PIXI) densitometers.
Methods 81 women, included in a post-menopausal osteoporosis assessment schedule, were consecutively selected for this study. In all women, we collected: 1) an osteoporosis risk factors’ questionnaire; 2) measurement of hip BMD, using a DEXA densitometer (NORLAND); and 3) measurement of calcaneus BMD, using the peripheral densitometer PIXI(LUNAR).
Results Osteoporosis risk factors collected: mean age (years) = 63(9.6 sd); mean time since menopause (years) = 15.6(9.2 sd); mean body mass index = 28.9(4.5 sd); mother’s hip fracture = 6.2%; previous Colles fracture = 8.6%; previous vertebral fracture = 6.2%; previous hip fracture = 1.2%; other non-traumatic fractures = 13.6%; calcium intake < 1 g/d = 88.9%; sedentarism = 45.7%. Statistical significance was found between absolute BMD values (Pearson’s correlation coefficient: r = 0.501(p = 0.01)), and t-score values (Pearson’s correlation coefficient: r = 0.575 (p = 0.01)) obtained with both densitometers.
Conclusion Peripheral densitometers can be a reliable and suitable choice for postmenopausal osteoporosis screening in primary health centres.