An ACL tear refers to a sprain or tear of the anterior cruciate ligament, one of the key ligaments that help stabilize your knee joint. It's a common injury, especially among athletes who play sports involving sudden stops, jumping, or changes in direction like football, basketball, and soccer.
ACL Anatomy and Function
- The ACL runs diagonally in the middle of the knee.
- It connects the femur (thigh bone) to the tibia (shin bone).
Its main functions are to:
- Sudden stops or changes in direction
- Pivoting with a foot firmly planted
- Awkward landings from jumps
- Direct blows to the knee (e.g., football tackles)
Causes of ACL Tears
ACL tears commonly occur from:
- Sudden stops or changes in direction
- Pivoting with a foot firmly planted
- Awkward landings from jumps
- Direct blows to the knee (e.g., football tackles)
| Grade | Description | ACL Condition | Stability | Common Treatment |
|---|---|---|---|---|
| Grade 1 (Mild) | Minor stretching or microscopic tearing | Intact but strained | Slight laxity | Physical therapy, bracing |
| Grade 2 (Moderate) | Partial tear | Partially torn and loose | Slight laxity | Bracing, rehab (sometimes surgery if unstable) |
| Grade 3 (Severe) | Complete tear | Torn into two pieces | Knee often unstable | Surgery + physiotherapy |
Grade 3 Tear or Complete Tear needs to be confirmed with a DYE Test. Unless there is a DYE Test conducted. Do not opt for any treatment options.