NCIt related terms : Idiopathic Juvenile Osteoporosis;
NCIt definition : The finding of one or more vertebral compression (crush) fractures in the absence
of local disease or high-energy trauma or the presence of both a clinically significant
fracture history and BMD Z-score less than or equal to -2.0. A clinically significant
fracture history is one or more of the following: 1) two or more long bone fractures
by age ten years; 2) three or more long bone fractures at any age up to age nineteen
years. (from 2013 International Society for Clinical Densitometry definition of Osteoporosis-Pediatric);
Alternative definition : NICHD: Osteoporosis of unknown etiology that presents in childhood.;