Segond Fracture 8211 A small avulsion fracture involving the lateral aspect of the knee just above the fibula head In approximately 75 of the cases it is the first indication of an anterior cruciate ligament tear

A Segond Fracture is a small avulsion fracture involving the lateral aspect of the knee just above the fibula head. In approximately 75% of the cases, it is the first indication of an anterior cruciate ligament tear. you should recommend MRI scan as a follow-up whenever you see the type of fracture.

Segond Fracture (Coronal PD TSE with fat suppression)

The red arrow points at the small avulsion fracture and the yellow arrow points at a defect caused by the avulsion fracture at the lateral aspect of the tibia. There is a lot of soft tissue edema on both the medial and lateral aspects of the knee. A little bit of edema in the lateral proximal tibia

Full-thickness ACL tear (Sagital PD TSE with fat suppression)

Full-thickness Anterior Cruciate Ligament(ACL) tear in the same patient on a follow-up MRI scan. Red arrow points at the full-thickness ACL tear. Yellow arrow points at a laceration in the Hoffa fat pad and the green arrow points at a tendinopathy of the patella ligament. There is a lot of soft-tissue edema and hemarthrosis in the knee joint.

X-Ray after ACL repair in the same patient using a graft. The yellow arrow points at a tunnel through which the graft travels. The red buttons point at the attachment sites. Note: the Segond Fracture can still be seen from the original fracture.

The X-Ray diagram above shows the graft used to replace the ACL tear in the same patient. The yellow arrow points at a tunnel through which the graft travels. The red buttons point at the attachment sites. Note: the Segond Fracture can still be seen from the original fracture on the lateral aspect of the proximal tibia above the fibula head.