Winquist and Hansen classification

The Winquist and Hansen classification is a system of categorizing femoral shaft fractures based upon the degree of comminution.

Classification

Type Description I Transverse or short oblique fractures with no comminution or a small butterfly fragment of less than 25% of width of the bone II Comminuted with a butterfly fragment of 50% or less of the width of the bone III Comminuted with a large butterfly fragment of greater than 50% of the width of bone IV Segmental comminution

References