oa Journal of Endocrinology, Metabolism and Diabetes in South Africa - The diagnosis of osteoporosis : editorial
Osteoporosis is defined by the World Health Organization (WHO) as a systemic skeletal disease that is characterised by low bone mass and microarchitectural deterioration of bone tissue, with a consequent increase in bone fragility and susceptibility to fracture which usually involves the wrist, spine, hip, ribs, pelvis or humerus. In 1994, the WHO proposed a stratified definition of osteoporosis, which was updated in 2008, that encompassed the concepts of both low bone mass and fracture. According to this classification, there are four general categories: normal, low bone mass (osteopenia), osteoporosis and severe osteoporosis.
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