prickly pear, prickly pear cactus(noun) cacti having spiny flat joints and oval fruit that is edible in some species; often used as food for stock. Synonyms: prickly pear, prickly pear cactus. prickly pear(noun) round or pear-shaped spiny fruit of any of various prickly pear cacti.
The quadriceps and patellar tendons can be stretched and torn. Although anyone can injure these tendons, tears are more common among middle-aged people who play running or jumping sports. Falls, direct force to the front of the knee, and landing awkwardly from a jump are common causes of knee tendon injuries.
Twisting injuries to the knee put stress on the cartilage or meniscus and can pinch them between the tibial surface and the edges of the femoral condyle, potentially causing tears. Injuries of the muscles and tendons surrounding the knee are caused by acute hyperflexion or hyperextension of the knee or by overuse.