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Surgery for osteochondral lesions of the talus
Fixation, drilling and cartilage procedures have different indications. Understanding talar surgery and individual recovery in children.
There is no single operation for every talar osteochondral lesion. Fragment stability, cartilage and bone condition and remaining growth need to be established first.
Learn about this condition →When surgery becomes part of treatment
A stable lesion may be managed without surgery. An unstable or displaced fragment, a loose body causing locking or persistent symptoms despite appropriate conservative care may warrant an operation.
Examination, X-rays and MRI are considered together. CT can help assess bone detail and plan surgery. An acute osteochondral fracture and OCD do not necessarily follow the same pathway. Lesion size and age alone do not determine the best technique.
Preserving a fragment or treating a defect
If a fragment is salvageable, fixation aims to retain it and support healing. With intact, stable cartilage, selected lesions can be treated by drilling the underlying bone. Retrograde drilling reaches the bone without passing directly through the cartilage surface.
If the fragment cannot be preserved, removal of unstable tissue and bone marrow stimulation procedures, such as microfracture, may be appropriate. Repair tissue is not identical to the original cartilage. Larger defects, bone loss or failed previous treatment may require grafts or other reconstructions assessed in an experienced centre.
Arthroscopy describes surgical access, not one particular treatment. Some operations need an open approach and sometimes an osteotomy, a controlled cut in bone to reach the lesion. This also changes recovery.
Preparation and discharge
The proposed technique, alternatives, anaesthesia and possible admission are discussed beforehand. Discharge instructions must specify allowed weight-bearing, crutches, brace or cast, ankle movement, dressings and follow-up.
Absence of pain does not prove that bone and cartilage are ready for loading or sport. Do not start weight-bearing early or remove protection without advice.
Ankle recovery and return to impact
Movement, loading and strengthening progress according to the operation and clinical assessment, with imaging when needed. Balance work is introduced within permitted weight-bearing. Running, jumping and changes of direction require later progression, considering pain, swelling, strength and ankle control.
The rehabilitation protocol after talar osteochondral treatment distinguishes protection after fixation from protection after bone marrow stimulation. The treating clinician must adapt it: it is not a universal protocol for grafts, osteotomies or associated procedures.
Limitations and risks to discuss
Paediatric studies are limited and do not justify promising the same result for every lesion. Pain, swelling or sporting limitations may persist. Failure to heal, implant or graft problems, stiffness, infection and further surgery are possible.
Pale or cold toes, new loss of sensation or rapidly increasing severe pain needs urgent assessment. Contact the treating team immediately; if they cannot be reached promptly, attend an emergency department. Wound drainage, increasing redness or fever with a very swollen ankle requires prompt advice. Breathing difficulty requires emergency help.
Sources
For parents
Osteochondral lesion of the talus: condition information page
Causes, diagnosis, conservative options and when surgery is considered.
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