Sudden onset knee pain

Sudden onset of knee pain can be from an injury to the ligaments, meniscus, bones, bursa, or soft tissue. Sudden onset is an acute injury and can be from an impact or direct trauma. In some cases sudden onset can be from medical conditions such a circulatory or neuropathy issue.

In sports injuries sudden onset knee injuries are usually as a result of a twisting, landing or episode of force and can cause sprains, strains, tears or ruptures. Injuries that cause the sudden onset of knee pain are listed below:
  • Coronary Ligament Sprain

    Coronary Ligament Sprain

    Coronary ligament sprain has similar symptoms to cartilage meniscus injury and often occur at the same time as lateral knee ligament injuries (at the side of the knee). A sharp pain is felt on twisting and turning but it is often not bad enough to require complete rest.

  • Patellofemoral Instability

    Patellofemoral Instability

    Patellofemoral instability usually involves the patient having a sensation of their kneecap 'slipping away' or feeling loose on a movement of the knee. It can occur through a number of anatomical or genetic causes, or it can result from a previous patella dislocation injury. Here we explain both primary and secondary instability.

  • 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.

  • Inside Knee Pain (Medial)

    Medial knee pain is a pain on the inside of the knee which usually comes on gradually as opposed to a sudden acute knee injury. If you are not sure what your injury is then why not try our symptom checker? Pain on the inside of the knee is usually an acute injury caused by a sudden trauma, however, it can come on gradually over time with poor biomechanics and overuse. Below we outline the most common medial knee injuries as well as some of the less common causes and important conditions which should not be missed.

  • 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.