An ACL (anterior cruciate ligament) injury, also known as an ACL tear, occurs when the ligament connecting the thighbone (femur) to the shinbone (tibia) is damaged or torn. The most common causes of ACL injuries include
:
- Sudden stops or changes in direction, such as in basketball, soccer, tennis, and volleyball
- Jumping and landing awkwardly
- Direct contact or collision, like a blow to the knee during sports or a car accident
Symptoms of an ACL injury may include
:
- A loud pop or "popping" sensation in the knee
- Severe pain and inability to continue activity
- Rapid swelling
- Loss of range of motion
- A feeling of instability or "giving way" with weight-bearing
The severity of an ACL injury can range from a mild sprain to a complete tear of the ligament, which may require surgery to repair
. Treatment for an ACL injury depends on the patient's individual needs and may include rest, physical therapy, or surgery
