Question

Which knee injury takes the longest to heal?

Answer 1

The knee injury that takes the longest to heal are severe ligament tears, especially complete Anterior Cruciate Ligament (ACL) ruptures.

Knee injuries like complete Anterior Cruciate Ligament (ACL) ruptures and other severe ligament tears take the longest to heal and often take 6 to 12 months for full healing and recovery.

Ligaments heal slowly, because ligaments have limited blood flow and complete ligament tears often necessitate surgical reconstruction, that is then followed by an extensive and demanding physical therapy program to help restore strength, stability and a range of motion.

Healing times and recovery for knee injuries including those with severe ligament tears can vary significantly depending on the severity of the injury and ligament tear and whether or not surgery is required.

For minor sprains and strains, these minor sprains and strain knee injuries often heal within 2 to 4 weeks with rest, ice, compression and elevation.

For moderate tears or partial ligament tears, they often require 6 weeks to 10 weeks of structured rehabilitation and therapy to regain function.

And for severe ligament tears, or complete ligament ruptures, they often require 6 months to 12 months for full healing and recovery.

Surgery is often mandatory for complete ligament tears to restore your joint stability.

Rehabilitation if needed is also a long term commitment to physical therapy, which is essential in rebuilding your muscle strength and ensuring that your knee can safely handle physical activity.

Ligaments receive less blood flow and less blood supply than the muscles do, so naturally the ligaments have a slower healing process when compared to soft tissue injuries.

Knee injuries that involve fractures or major ligament tears like ACL tears, MCL or PCL often will require surgery, which also adds months of post operative recovery and physical therapy to the time needed for full recovery.

For grade 3 hamstring strains which are complete tears of the muscles can take 6 to 12 weeks or even longer to heal and grade1 and grade 2 hamstring tears often take less time to heal.