A high ankle sprain, also known as a syndesmosis injury, is a type of ankle sprain that affects the ligaments that connect the tibia and fibula bones in the lower leg. Unlike a traditional ankle sprain, which affects the ligaments that connect the ankle bone to the foot, a high ankle sprain is a more severe injury that can take longer to heal and may require more intensive treatment.

High ankle sprains are typically caused by a twisting or rotational force on the ankle, such as during a sports injury or a fall. Symptoms of a high ankle sprain can include pain and swelling in the lower leg, difficulty bearing weight on the affected ankle, and a feeling of instability in the ankle joint.

Treatment for a high ankle sprain may include immobilisation of the ankle with a brace or cast, physical therapy to strengthen the muscles around the ankle, and possibly surgery to repair any torn ligaments. Recovery from a high ankle sprain can take several weeks to several months, depending on the severity of the injury.
If you suspect that you may have a high ankle sprain, it is important to have an assessment from a health professional as soon as possible. With proper diagnosis and treatment, most people are able to make a full recovery from a high ankle sprain and return to their normal activities. However, without proper treatment, a high ankle sprain can lead to some longer-term complications and possibly chronic pain.