From the case:
Winquist classification of femoral shaft fractures
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Winquist classification of femoral shaft fractures
Case Discussion
Type 0: no comminution or a small butterfly fragment less than 25 % of the bone.
Type I: small butterfly fragment less than 25 % of the bone.
Type II: butterfly fragment 50 % or less of the width of the bone
Type III: comminuted with a large butterfly fragment greater than 50 % of the width
Type IV: Severe comminution of an entire segment of bone (segmental comminution)