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Knee injury is one of the most common reasons people see their doctors. Your knee is a complex joint with many components, making it vulnerable to a variety of injuries. Many knee injuries can be successfully treated with simple measures, such as bracing and rehabilitation exercises.
Surgical Treatment of Hyperextended Knee. If the knee hyperextension causes tear or rupture of the tendon, then surgery may be needed to repair it. One of the most common tendon injuries of the knee joint is ACL or anterior cruciate ligament rupture. These occur in extreme hyperextension of the knee joint. Injuries to the posterior cruciate ligament (PCL) and popliteal tendon can also occur with a hyperextended knee and require surgery for repair.