Patellar tendinosis

Case contributed by Dr Pavan Borra

Presentation

Knee joint pain for 6 months following trauma.

Patient Data

Age: 40 years
Gender: Male
MRI

The patellar tendon is diffusely thickened from pre-patellar region to its tibial attachment. Hyperintense T1/T2/PD fat sat intrasubstance signal changes within the thickened patellar tendon. AP diameter of the patellar tendon is about 14 mm. Posterior margin of the tendon is convex. No reactive bony changes noted in the patella.

Case Discussion

Increased AP diameter with intra-substance T2 hyperintense signal changes and indistinct posterior margin are diagnostic of patellar tendinosis. The AP diameter of a normal patellar tendon is <7 mm.

Proximal patellar tendon involvement with reactive marrow changes of the bony patella is seen in jumper's knee.

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Case information

rID: 68730
Published: 11th Jun 2019
Last edited: 29th Aug 2019
Inclusion in quiz mode: Included

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