Impact to the knee

Impact to the knee can cause direct trauma creating bruises. Alternatively impact can create forces that injure muscles, ligaments and bones. Enough force in a certain direction can create a valgus or varus movement taking the knee inward or outward.

These types of lateral or medial forces from impact can damage ligaments such as the medial collateral (MCL) or lateral collateral (LCL). If the impact is great enough it can create shearing forces. Injuries listed below:
  • ACL Sprain

    ACL Sprain

    Anterior Cruciate Ligament injury or 'ACL injuries' are common in contact sports and especially those that are combined with sudden change of direction such as soccer or football. Often ACL tears do not occur in isolation and are in most cases are associated with damage to other structures within the knee such as the cartilage or the collateral ligaments.

  • Medial Ligament Sprain

    Medial Ligament Sprain

    A medial ligament sprain or MCL injury is a tear of the ligament on the inside of the knee, usually a result of twisting or direct impact.

    Medial ligament injuries are common in contact sports such as football and rugby, as well as martial arts. They can also occur in daily life through falls and twists of the knee joint.

  • Medial Meniscus Tear

    Medial Meniscus Tear

    A torn meniscus is a tear to the semi circular cartilage in the knee joint causing pain on the inside of the knee. It is commonly injured through direct impact in contact sports or twisting but can also occur in older athletes through gradual degeneration. Treatment depends on how bad the injury is and may require surgery.

  • Lateral Knee Ligament Sprain

    Lateral Knee Ligament Sprain

    A lateral ligament sprain is a knee ligament injury involving a tear to the ligament on the outside of the knee and is most likely following a direct blow to the inside of the knee.

  • Patella Dislocation

    Patella Dislocation

    The patella can dislocate outside of its normal position, usually round the outside of the knee. It can also partially dislocate, called a subluxation.

  • Knee Contusion

    Knee Contusion

    A knee contusion or bruised knee occurs due to an impact on the knee. This can be due to a fall directly onto the knee or something hitting the knee, such as a ball or club. Contusion is the medical term for a bruise. Treatment depends on how bad the injury is.

  • Tibial Plateau Fracture

    Tibial Plateau Fracture

    The tibial plateau is the upper surface of the tibia or shin bone. It is prone to becoming fractured in high speed accidents such as those associated with skiing, horse riding and certain water sports.

  • Knee Sprain

    Knee Sprain

    A knee sprain is an injury or damage to any of the four ligaments which support the knee.

  • Peroneal Nerve Contusion

    Peroneal Nerve Contusion

    The peroneal nerve is a branch of the sciatic nerve which runs down the outside of the lower leg, serving the peroneal muscles which help pull the foot upwards and inwards. Symptoms include numbness & tingling in the lower leg and is often caused by a blow to the outside of the knee.

  • Osteochondral Knee Fracture

    Osteochondral Knee Fracture

    An Osteochondral fracture is a tear of the cartilage which covers the end of a bone, within a joint. It is also known as Osteochondritis Dissecans and is common in the knee joint, especially in association with other injuries such as ACL tears.

  • Acute Patella Injury

    Acute Patella Injury

    An acute patella injury is an injury to the kneecap or patella from a direct blow or fall onto the knee. A fracture of the patella is also possible.

  • Articular Cartilage Injury

    Articular cartilage injury is damage to the tough cartilage that lines the ends of bones. We explain the symptoms, causes and treatment of an articular cartilage injury to the knee.

  • Unhappy Triad of the Knee

    Unhappy Triad

    The unhappy triad is a severe injury which involves damage to three of the four major ligaments in the knee.

  • Acute Knee Injuries

    An acute knee injury usually occurs suddenly through either trauma or a twisting action. Pain in the knee can vary in severity from very mild to very severe and this depends on the injury mechanism (how the injury occurred) and the forces involved during the impact. It is strongly advised not to carry on playing if you have acute knee pain as this can easily progress to a chronic pain or to more complex knee injuries.

  • Outside Knee Pain (Lateral)

    Lateral knee pain is that which occurs on the outside of the knee has come on gradually as opposed to an acute knee joint or ligament injury. If you are not sure what is causing your pain then why not check out our symptom checker? The most common causes of pain on the outside of the knee are Iliotibial band friction syndrome and Lateral cartilage injuries. Here we explain the most widely seen causes, less common causes of lateral knee pain as well as important injuries that should not be missed.