190
UNIT 2
Covering, Support, and Movement of the Body
6
Table 6.2
Common Types of Fractures
FRACTURE
TYPE
DESCRIPTION AND COMMENTS
FRACTURE
TYPE
DESCRIPTION AND COMMENTS
Comminuted
Bone fragments into three or more pieces.
Particularly common in the aged, whose bones are
more brittle
Compression
Bone is crushed.
Common in porous bones (i.e., osteoporotic bones)
subjected to extreme trauma, as in a fall
Spiral
Ragged break occurs when excessive twisting forces
are applied to a bone.
Common sports fracture
Epiphyseal
Epiphysis separates from the diaphysis along the
epiphyseal plate.
Tends to occur where cartilage cells are dying and
calcification of the matrix is occurring
Depressed
Broken bone portion is pressed inward.
Typical of skull fracture
Greenstick
Bone breaks incompletely, much in the way a green
twig breaks. Only one side of the shaft breaks; the
other side bends.
Common in children, whose bones have relatively
more organic matrix and are more flexible than
those of adults
Crushed
vertebra
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