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Sai Institute of Sports Injury

Anterior Cruciate Ligament Injury

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  • Anterior Cruciate Ligament injury

The anterior cruciate ligament (ACL) is the major stabilizing ligament of the knee which prevent leg bone slipping anteriorly. The ACL is located in the center of the knee joint and runs from the femur (thigh bone) to the tibia (leg bone), through the center of the knee. It is very important for daily activities like stepping, jumping and sports.

Mode of ACL Injury

Usually the tearing of the ACL occurs with a sudden direction change or when a deceleration force crosses the knee. The patient often feels or hears a popping sensation, has the rapid onset of swelling, and develops a buckling sensation in the knee when attempting to change direction


During the medical history, your orthopedic surgeon will ask about your general health and will ask you about your symptoms. A physical examination will be done to assess the motion and stability and muscle strength of the knee as well as the overall alignment of the leg. X-rays will be done to evaluate the bones of the knee. Your orthopedic surgeon may also arrange for you to undergo magnetic resonance imaging (MRI) to provide more information about the soft tissues of your knee. Blood tests may be obtained.

Treatment For Torn Ligament / Ligament Tear Surgery

  • Holes are drilled in the femur and tibia
  • The graft is passed through the drill holes to replace the torn anterior      cruciate ligament.
  • The graft ends fixed with in place with screws.

Post Operative Rehabilitation

Post operative period should be followed by a standard rehabilitation protocol. Our institute is having a rehabilitative gym, governed by well trained physio-therapist.


Complications are rare but the possibilites include

  • Accidental damage to structures inside or near to the joint.
  • Excessive bleeding inside the joint which can cause a lot of swelling and pain.
  • Infection within the joint.
  • Risk of allergy to local anaesthetics, or complications of anaesthesia if a general anaesthetic is used.