Bone density scanning measures the bone mineral density, which is related to bone mass. Decreased bone mass causes decreased bone strength and subsequent risk of fractures. Bone mass peaks in men and women at about the age of 30. Men are generally larger and hence have a greater overall amount of bone mass. This rate is slowed by hormone replacement.
Fractures are the first clinical signs of osteoporosis.
It is desirable to identify patients who have osteoporosis before development of fractures. People are considered at risk of developing osteoporosis based on risk factors and whether pre or post menopausal. Below is a partial listing of who would benefit from assessment of bone density. We use a DEXA scanner. This stands for d ual e nergy x -ray a bsorptiometry.