Winquist Classification and Hansen Classification

Winquist classification of femoral shaft fractures is a special type fracture managing method for classifying, investigating the fracture pattern, severity, degree, location, type, angulation, shortening – lengthening, comminution, rotation, displacement, and fracture angle of femoral shaft fractures are universally and widely accepted by orthopedic surgeons to assess the initial injury, plan management, and predict prognosis, to manage decision making, in determining whether a fracture requires an intramedullary nail or open reduction with internal fixation with steel screws, rods, plates, pins, or K-wires to hold the broken bones in the correct position even external fixation attaches a metal framework outside the limb and includes the Ilizarov method and an X-frame.

Femoral shaft fractures are frequently described in terms of the level at where occur in proximal, middle, distal third, and configuration of the fracture of spiral, transverse, oblique, segmental, comminuted.

Winquist Classification For 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)

or

Classification
Winquist and Hansen Classification
Type 0
No comminution
Type I
An insignificant amount of comminution
Type II
Greater than 50% cortical contact
Type III
Less than 50% cortical contact
Type IV
Segmental fracture with no contact between proximal and distal fragment
AO/OTA Classification
32A – Simple
A1 – Spiral
A2 – Oblique, angle > 30 degrees
A3 – Transverse, angle < 30 degrees
32B – Wedge
B1 – Spiral wedge
B2 – Bending wedge
B3 – Fragmented wedge
32C – Complex
C1 – Spiral
C2 – Segmental
C3 – Irregular

or

The most commonly used fracture classification system used is the AO/Orthopaedic Trauma Association classification because of its high interobserver reliability and accuracy. The system utilizes a coding system to identify the fracture type resulting in 27 different patterns. 3= femur, 2 = diaphysis.

32A – Simple

  • A1 – Spiral
  • A2 – Oblique, angle > 30 deg
  • A3 – Transverse, angle < 30 deg

32B – Wedge

  • B1 – Spiral wedge
  • B2 – Bending wedge
  • B3 – Fragmented wedge

32C – Complex

  • C1 – Spiral
  • C2 – Segmental
  • C3 – Irregular

References