Knee injuries in sport
The knee is the most commonly injured joint in sport. The forces of cutting, landing and direct contact can damage its ligaments, the meniscus cartilage, the joint surface or the kneecap — sometimes more than one at once.
Recognising the typical patterns matters, because the right treatment depends entirely on which structures are involved. A precise diagnosis of the whole knee — not just the most obvious injury — is always the starting point.
Common injury patterns
- checkLigament tears the ACL and PCL, often from twisting, landing or a direct blow.
- checkMeniscus tears from twisting on a planted foot, frequently alongside an ACL injury.
- checkCartilage injuries to the joint surface from impact or shear.
- checkKneecap problems dislocation or front-of-knee overload pain.
- checkCollateral ligament sprains on the inner or outer side from a sideways force.
What to do at the time
Sensible early management protects the knee while you arrange assessment:
- Stop playing — continuing risks further damage.
- Rest, ice and gentle elevation to control swelling.
- Avoid forcing a knee that is locked or won’t straighten.
- Seek assessment for significant swelling, instability or locking.
A loud “pop” with rapid swelling, a knee that gives way or locks, or an inability to bear weight should be examined without delay to identify ligament, meniscus or cartilage injury early.
How they are diagnosed
A careful examination identifies which structures are involved, using specific tests for each ligament and the meniscus. An MRI then confirms the diagnosis and maps any combined injuries — the detail that allows a single, comprehensive treatment plan rather than a series of surprises.
Treatment & return to sport
Treatment is tailored to the injury — ranging from structured rehabilitation to arthroscopic repair or reconstruction. Whatever the path, return to sport is criteria-based: guided by regained strength, movement quality and confidence, rather than the calendar alone. This is the surest way to return safely and reduce the risk of re-injury.