Oglesby RJ

Osteoporosis is a global public health problem that affects more than 200 million individuals, with a total of 1.66 million hip fractures annually (1). One in 3 women and 1 in 5 men over the age of 50 years will experience an osteoporotic fracture in their lifetime (2). Primary osteoporosis is most common and occurs during the normal aging process related to menopause and changes in sex hormones that occur with advancing age.

The histological nature of the metoposaurid intercentrum is more variable within the sample, differing primarily in the relative abundance and distribution of various features such as calcified cartilage and the deposition of primary lamellar bone rather than the presence or absence of these features. Although the majority of each intercentrum is made of trabecular bone, more compact lamellar bone can be found deposited inside of vascular canals and in the outer layers of the periosteal cortex.