Fractures
The prevalence of osteoporotic fractures is indicated below:
| Vertebral fractures | 46% | 
| Wrist fractures | 16% | 
| Hip fractures | 16% | 
| Others (arms, legs and ribs) | 22% | 
A vertebral fracture can be defined "as the reduction of one of the vertebral heights by 20%, compared to a reference vertebral height". These heights can be the posterior vertebral height, the mid vertebral height or anterior vertebral height.

Fractures are classified as:
| Normal |  | 
| Wedge |  | 
| Concave |  | 
| Compression (crush) |  | 




