Patellar tendon rupture  From Wikipedia, the free encyclopedia
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Classification and external resources Patellar tendon
rupture.JPG Patellar tendon rupture showing a marked distance
between the tibial tuberosity and the bottom of the patella.
ICD-10 S76.1 ICD-9 727.66 eMedicine article/1249472  Patellar
tendon rupture is a rupture of the tendon that connects the
patella to the tibia. The superior portion of the patellar
tendon attaches on the posterior portion of the patella, and the
posterior portion of the patella tendon attaches to the tibial
tubercle on the front of the tibia. Above the patella are the
quadriceps muscle (large muscles on the front of the thigh), the
quadriceps tendon attaches to the top of the patella. This
structure allows the knee to flex and extend, allowing use of
basic functions such as walking and running.  There are three
possible forms of patellar tendon rupture. The first form of
rupture is a complete tear. In a complete tear, the