Tibial tuberosity avulsion fracture
Knee pain, with infrapatellar swelling.
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Separated bony fragment anterior to proximal tibia, with hyperintense fluid inbetween on T2WI as well as bone marrow edema in anterior aspect of proximal tibia, denoting avulsion fracture of tibial tuberosity. Associated thickening of distal patellar tendon. Mild joint effusion.
Mucoid degeneration PHMM and intact cruciate ligaments.
Separation of tibial tubercle denoting avulsion fracture of tibial tuberosity, likely chronic.