Anatomy Of Knee

Anatomy of Knee The knee is composed of 4 bones: the femur, tibia, fibula and patella. Every one of these bones are practical in the knee joint, aside from the fibula. The patellar tendon elongates from the inferior pole of the patella, as an extension of the tendon of the quadriceps femoris muscle to the tibial tuberosity. The role of the patella tendon is to transfer the force of the quadriceps muscles, much like a rope around a pulley, as your knee straightens.
(John Miller, 2015)

Definition Excessive jumping or landing strains the patella tendon. At first the damage may only be minor and not cause any problem. However, if the tendon is repeatedly strained, the lesions occurring in the tendon can exceed the rate of repair. The damage will progressively
The condition does not seem to bother the person before or during the activity.
• In stage 2, pain is present at the beginning of an activity, seems to dissipate after warming up for a while, and then reappears after the activity. In this stage, the athlete's play is not usually affected. • In stage 3, pain occurs during and after activity, affecting the performance of the athlete.
• In stage 4, the tendon ruptures, causing a chronic weakness of the tendon. Thus, limit the activity for the person.
Causes

• Jumper's knee is an overuse injury that results from repetitive overloading of the extensor mechanism of the knee.
• Microtears to the patellar tendon often exceed the body's ability to heal the area unless the aggravating activity is stopped for a period of time.
• Jumper's knee occurs in many types of athletes but is most common in sports such as basketball, volleyball, or soccer, which require explosive jumping movements.
• In elderly people the common cause of patellar tendinopathy is a result of degeneration changes
• Also, some patients develop patella tendonitis after sustaining an acute injury to the tendon. Clinical Features
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