Knee Ligamentous Sprain (ACL, MCL, LCL) (noun): A sprain is the stretch or partial tear of ligaments which connect two bones. A knee sprain happens when the ligaments that support the knee get overly stretched, or torn, due to external or internal factors.


Based on how much damage is done to the ligament, the three grades of knee sprains are:
MILD – Mild pain & disability. Slight point tenderness, minimal laxity & swelling.
MODERATE – Hearing and/or feeling a pop or snap. Moderate pain & disability, swelling, point tenderness, joint laxity & discoloration.
SEVERE - Hearing and/or feeling a pop or snap followed by severe pain usually indicative of a complete tear. Excessive swelling, joint laxity & discoloration, unable to bear weight.

Solution Products

  • IW-1 Set

    IW-1 Set

    USD $54.99
  • ZK-7


    USD $79.99

Prevention/Injury Chart