Winquist and Hansen classification, usually abbreviated by the name of the first author, divides fractures of femoral shaft into four grades according to the amount of bone comminution. Sometimes, grade V is reffered to as a segmental bone loss. However the original classification contains only four grades.
Grade | Description |
---|---|
Grade I | no comminution or minimal comminution with a small wedge fragment < 25% of the circumference of the bone |
Grade II | comminuted fracture with a wedge fragment <50% of the circumference of the bone |
Grade III | comminuted fracture with a large wedge fragment >50% but less than 100% of the circumference of the bone |
Grade IV | segmental comminution with no abutment of main fragments |
1. Winquist RA, Hansen ST Jr, Clawson DK. Closed intramedullary nailing of femoral fractures. A report of five hundred and twenty cases. J Bone Joint Surg Am. 1984 Apr;66(4):529–39.
2. Grosse A, Christie J, Taglang G, Court-Brown C, McQueen M. Open adult femoral shaft fracture treated by early intramedullary nailing. J Bone Joint Surg Br. 1993 Jul 1;75-B(4):562–5.
Winquist Grade I to IV (left to right)