This is a classic case of osteoporosis. It is a transiliac biopsy.
Osteoporosis causes the bones to become weak and brittle.
The become so weak that bending over the wrong way or lifting something to heavier will cause them to fracture. The main cause of osteoporosis is that the body lacks calcium, phosphorous, and other minerals in your bones. Osteoporosis, in the United States, causes more than 1.5 million fractures a year. The fractures usually occur in the spine, hip, or wrist. Half of all the white women ages 50 and older can expect to have a bone fracture due to osteoporosis sometime during their life.