Ankle ligament injuries
Among the most common musculoskeletal injuries are injuries to the ankle ligament. Often, they happen during sports or everyday activities that require sudden twisting or rolling of the foot. Although many ankle sprains are mild, some ligament injuries can lead to persistent pain, instability or repeated sprains if they are not properly assessed and managed.
Leading consultant foot and ankle orthopaedic surgeon Mr Martin Klinke , who practises at Cleveland Clinic London Hospital, discusses how understanding how these injuries occur and when specialist evaluation is needed can help patients recover safely and reduce the risk of long-term problems.
What are ankle ligaments and what do they do?
Ligaments are strong bands of connective tissue that link bones together and provide stability to joints. In the ankle, several ligaments work together to support movement while preventing excessive motion that could damage the joint.
The most commonly injured ligaments are located on the outer (lateral) side of the ankle. These include:
- the anterior talofibular ligament,
- calcaneofibular ligament, and;
- the posterior talofibular ligament.
These structures help stabilise the ankle during walking, running and changes in direction.
When the foot rolls inward suddenly, these ligaments can stretch beyond their normal range, resulting in a sprain or tear.
What causes ankle ligament injuries?
Ankle ligament injuries usually occur when the foot twists awkwardly or lands unevenly. This can happen during sporting activities but may also occur during routine movements such as stepping off a kerb or walking on uneven ground.
Common causes include:
- Sports involving jumping or rapid direction changes, such as football, basketball or tennis
- Sudden twisting or rolling of the ankle during walking or running
- Landing incorrectly after a jump
- Walking on uneven surfaces
- Previous ankle injuries that have weakened the ligaments
Individuals who have experienced a previous ankle sprain may be more vulnerable to repeat injuries if the joint remains unstable.
What symptoms suggest a ligament injury?
Symptoms vary depending on severity. Mild sprains may cause temporary discomfort, while more significant ligament tears can produce substantial swelling and difficulty walking.
Typical symptoms include pain around the ankle joint, swelling, bruising and tenderness when the area is touched. Some people may feel instability or a sensation that the ankle could give way when standing or walking.
In more severe injuries, weight-bearing may become difficult and movement of the ankle can be restricted.
How are ankle ligament injuries diagnosed?
Diagnosis usually begins with taking a thorough history and then clinical examination of the ankle. A specialist will assess swelling, tenderness and the stability of the joint while reviewing how the injury occurred.
Imaging tests may be recommended in some situations. X-rays can help rule out fractures, while ultrasound or MRI scans may be used to evaluate ligament damage in greater detail. These investigations help guide treatment decisions and identify injuries that may require more specialised care.
What treatment options are available?
Many ankle ligament injuries can be managed without surgery, particularly if the ligaments have only stretched or partially torn. Early treatment focuses on protecting the ankle and allowing the injured tissues to heal.
Common treatment approaches include:
- Rest and temporary reduction of weight-bearing activities
- Ice application to help reduce swelling
- Compression bandaging or ankle support
- Elevation of the injured limb
- Physiotherapy to restore strength, balance and mobility
- Avoiding certain movements, for example: tilting the ankle inwards (supination) and bending ankle downward (plantarflexion) beyond 20 degrees.
Rehabilitation exercises are an essential part of recovery and help reduce the risk of future sprains.
When might surgery be needed?
Surgery is usually considered when ankle instability persists despite appropriate rehabilitation or when ligaments are severely damaged. In these cases, surgical repair or reconstruction such as ”anatomic repair" of the ligaments, and “augmentation with internal brace”, may be performed to restore stability to the joint.
The aim of surgery is to tighten or reconstruct the damaged ligaments so that the ankle can function normally again. Following the procedure, a structured rehabilitation programme is important to support healing and regain full movement.
Why is proper rehabilitation important?
Even after symptoms improve, the ankle may remain vulnerable if strength and balance are not fully restored. Physiotherapy focuses on rebuilding muscle support around the joint and improving coordination, which helps protect the ligaments during movement.
With accurate diagnosis, appropriate treatment and careful rehabilitation, most patients recover well from ankle ligament injuries and are able to return to normal activities.