Percutaneous tendon-fat pad separation (PTFPS) ... 1.5-inch needle is used to inject 5 mL 1% lidocaine under the skin and between the patellar tendon and Hoffa’s fat pad.

Patellar tendinosis is a challenging condition to treat, especially in the high load athlete. ... In some cases, the disease process may involve the patella, Hoffa’s fat pad and the paratenon.

Hoffa’s fat pad, also known as the infrapatellar fat pad, is a fatty soft tissue that lies under the knee cap. It contains many nerves and can be a source of anterior knee pain.