About this video
Last updated: 9 October 2026
The video describes an osteochondral lesion as an injury in which a piece of bone along with its overlying cartilage becomes detached from the joint surface. It says this can happen in a traumatic event such as a fall or sports injury, or through repetitive stress on the knee.
Key points
- The video says a loose fragment can cause impingement, knee locking, pain and accelerated wear of the joint surfaces.
- It says that if the detached fragment is still healthy, it can be repaired back in place.
- It says that if the fragment cannot be repaired, a procedure called osteochondral autologous transplantation surgery (OATS) can be done.
- The video describes OATS as taking a small plug of healthy bone and cartilage from a non-weight-bearing area of the knee and transplanting it into the damaged site.
- It says recovery varies between individuals and between procedures, and that many patients begin rehabilitation soon after surgery.
Questions this video answers
What is an osteochondral lesion in the knee?
The video describes it as an injury in which a piece of bone along with its overlying cartilage becomes detached from the joint surface. It says this can happen in a fall, a sports injury or through repetitive stress, and that a loose fragment can cause impingement, locking and pain.
How does the video say an osteochondral lesion is treated?
It says a healthy detached fragment can be repaired back in place. If the fragment cannot be repaired, it describes osteochondral autologous transplantation surgery (OATS), which moves a small plug of healthy bone and cartilage from a non-weight-bearing area of the knee into the damaged site.
