Figure 1
(A) (Rt): Fracture across the proximal tibial apophysis is completely displaced upward and rotated.
(B) (Lt): Fracture line propagates upward across the primary proximal tibial epiphysis into the knee joint.
Figure 2
(A) (Rt) Avulsion fracture of the tibial tuberosity with infrapatellar tendon tear is definite in T1WI.
(B) (Lt) Tibial tuberosity shows comminuted intraarticular fracture with avulsion. Fracture related bone and soft tissue edema is also seen, especially anteromedial asepct. Patella tendon reveals diffuse swelling with normal continuity.
Figure 3Intraoperative photograph shows large communited avulsed fragment and ruptured retinaculum and thick periosteum in the left knee.
Figure 4Completely union of previous avulsed fragments at 3 months after operations are seen in the plain AP and lateral view of both knees.