Medial Collateral Ligament (MCL) Sprain

The medial collateral ligament (MCL), a band of tissue present on the inside of your knee joint, connects your thigh bone and shin bone (bone of your lower leg). The MCL maintains the integrity of the knee joint and prevents it from bending inward.

Your MCL may get sprained or injured while twisting, bending or quickly changing direction. The sprain is classified into three degrees:

  • First-degree sprain: Ligament fibres may be injured, but with no significant tear and no loss of integrity
  • Second-degree sprain: Not all ligament fibres are torn. Ligament remains intact overall
  • Third-degree sprain: Complete rupture of ligament and loss of overall integrity
  • Tenderness and pain in the inner side of the knee
  • Swelling and bruising
  • Stiffness of knee
  • Difficulty walking
  • Bleeding and inflow of fluid into the joint
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