Traumatic infra patellar tendinitis with partial tear
History of trauma. Complaining of pain and limitation of flexion.
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Altered signal and thickening of the infrapatellar tendon, which appears hyperintense on the T2W and T2 F-SAT images, and hypointense on T1W images, represents partial thickness tear / sprain
Patchy hyperintense signal seen on the T2 FSAT and T2W images in the patella, which turns hypointense signal on the T1W images, represents bone bruising / edema.
Tears of the patellar tendon (PT) occur less frequently and are rarely associated with intra-articular pathology.
Acute combined tears of both the ACL and PT are known complications of high-energy traumatic knee dislocations.
- Wissman RD, Vonfischer N, Kempf K. Acute Concomitant Anterior Cruciate Ligament and Patellar Tendon Tears in a Non-dislocated Knee. J Clin Imaging Sci. 2012;2 : 3. doi:10.4103/2156-7514.93035 - Free text at pubmed - Pubmed citation