Presentation
Atheletic patient with chronic anterior knee pain.
Patient Data
Fragmented tibial apophysis at the attachment site of inftrapatellar tendon with associated marrow signal change displaying low T1, high PD FS signal intensity.
No associated soft tissue swelling or inflammatory changes at the Hoffa's fat pad.
Case Discussion
The case represent chronic form of Osgood-Schllater disease where there is osteochondrosis of tibial tuberosity due to repetitive microtrauma at the insertion site of infra patellar tendon and mainly seen with sports that require frequent jumping (eg, triple jump).
In acute phase there is local edema and inflammatory changes overlying the bone fragment and Hoffa's fat pad while in chronic stage there is only abnormal marrow signal.