Osteochondral lesions of the talus in children
Deep ankle pain and swelling may require assessment of talar cartilage and bone, particularly when symptoms persist after a sprain.
An osteochondral lesion of the talus affects the ankle’s joint cartilage and the bone immediately beneath it. It may be identified after a sprain, although the family may not recall a specific injury.
This term includes different conditions. Osteochondritis dissecans, abbreviated to OCD, and an acute osteochondral fracture are not interchangeable diagnoses: the history, imaging and lesion stability change treatment decisions.
When ankle pain needs further assessment
Pain with weight-bearing, recurrent swelling, catching or locking warrant assessment. They do not establish an osteochondral lesion on their own. Severe pain or inability to walk after injury needs prompt assessment, including consideration of a fracture.
X-rays are often the first test. MRI assesses cartilage and bone if suspicion persists or the lesion needs clarification. CT can be useful in selected cases for bone detail and planning; it is not an automatic additional test.
Not every lesion needs surgery
A stable lesion may be managed without surgery, stopping impact activities and using weight-bearing protection or immobilisation when prescribed. Pain improvement is considered alongside examination and follow-up imaging. An unstable or displaced fragment, a loose body or persistent symptoms may lead to surgical assessment.
The conservative talar OCD protocol is a resource to use with the treating clinician for the appropriate diagnosis. It does not authorise running or jumping as soon as pain decreases.
Assessment and treatment
When to seek evaluation
- Persistent or recurrent deep ankle pain
- Recurrent swelling, catching or locking
- Severe pain or inability to bear weight after injury needs prompt assessment
- Fever with a hot, very swollen ankle needs urgent assessment
What is evaluated
- Previous injuries, activity, ankle movement and stability
- Lesion location, extent and stability, and remaining growth
- X-rays, MRI and CT only when useful
Treatment options
- Reduced impact, protection and follow-up for selected stable lesions
- Rehabilitation prescribed according to healing
- Lesion-specific surgery when indicated, without one technique for every patient
When Surgery Is Needed
Important Notice: The information on this page is for educational and informational purposes only and does not constitute medical advice. Each clinical case is unique: the appropriate treatment is determined during the specialist consultation, based on a thorough clinical examination and, where necessary, diagnostic imaging. For any doubts or concerns, please consult a specialist.