the average loss between youth and old age amounts to about 15 % of the skeleton but involves a much larger proportion of trabecular than of cortical bone.the principal clinical manifestation of osteoporosis is fracture , and three osteoporotic fracture syndromes can be defined : the lower forearm fracture , which predominantly affects women between the ages of 50 and 65 ;
C0016658
fracture
C0521170
osteoporotic fracture