When is cartilage repair surgery recommended for osteochondritis dissecans?

Osteochondritis dissecans affects a small area of bone and the cartilage covering a joint, often the knee or ankle. Imaging helps the orthopaedic specialist judge whether the area is stable, whether a fragment has separated, and whether the joint surface is being disturbed. A stable lesion may be managed with reduced impact, protected weight-bearing when advised, and guided physiotherapy while healing is monitored. Surgery becomes more relevant when pain, swelling, catching, or restricted movement continues, or when a loose fragment threatens the smooth movement of the joint.

Arrange an assessment with an orthopaedic specialist if symptoms continue despite the activity plan you were given. Bring details about swelling, locking, giving way, sports demands, and previous treatment. The clinician may review X-rays or magnetic resonance imaging and discuss whether repair, fixation, or another cartilage procedure fits the lesion and your stage of bone growth. Do not return to running, jumping, or contact sport until movement, strength, and joint loading have been assessed.

Seek prompt medical care for a joint that locks and cannot fully straighten, sudden inability to bear weight, marked swelling after an injury, or rapidly worsening pain. These changes can indicate a displaced fragment or another injury needing examination. Urgent assessment is also sensible if the joint becomes hot and red with fever, because that pattern may signal an infection rather than a cartilage lesion.

Ask whether the lesion is stable, what the imaging shows about the cartilage and underlying bone, how long a non-surgical trial should last, and which activities are safe now. You can also ask what procedure is being considered, how rehabilitation is staged, and what signs would mean the plan needs to change.