Greenstick
one side breaks, other bends upward, common in children with flexible matrix
Epiphyseal
separation break, due to dying chondrocytes or matrix calcification
Depressed/Depression
common in Skull, pushed inward
Spiral
twist force , ragged, common in sports
Compression
bone crush, common due to osteoporosis
Comminuted
breaks into 1 or more pieces, common in aged people or with brittle bones,