Anterior cruciate ligament (ACL) rupture

What is it?

This injury is the over-stretching or tearing of the anterior cruciate ligament (ACL) in the knee.  A tear may be partial or complete.  The ACL is one of the most important ligaments in the knee and provides stability.

What does it feel like and how does it affect people?

The knee may swell and become painful.  Instability, or the feeling that the knee is "giving out", is common.  Restricted movement, such as being unable to full straighten the leg, may also be present.  ACL injuries may need surgery, or may be treated using physiotherapy.

How can physiotherapy help?

Depending on your job requirements or the sport you play, you may be able to function without an intact ACL.  Physiotherapy can help increase the movement of your knee, decrease swelling and maintain muscle control.  It is vital to strengthen knee joint muscles and your physiotherapist can custom-design an exercise programme for you.  The programme can also include exercises to improve the balance between the knee, hip and ankle joints.  Your physiotherapist will advise you on how soon to return to your normal activities and sport.

If your ACL is replaced through surgery, physiotherapy is very important to your rehabilitation.  The rehab will help you restore full movement to your knee and improve stability.