How effective is cartilage repair surgery for osteochondritis dissecans?

Osteochondritis dissecans affects a section of joint surface and the bone beneath it. If the fragment is stable and the area can heal, non-surgical protection may be considered. When the surface is unstable, loose or unable to heal adequately, surgery may secure the fragment, stimulate repair or replace damaged cartilage and bone. The likely benefit is judged by pain, swelling, catching, motion and activity tolerance. A repair cannot promise that the whole joint will behave as it did before the lesion developed.

Ask whether the lesion is stable, how much bone is involved and whether the growth plate or joint alignment changes the plan. Follow restrictions on running, jumping and weight bearing; these protect the repair while tissue consolidates. Physiotherapy then works on gentle motion, muscle activation, strength and controlled return to loading. Keep scheduled reviews because symptoms alone may not show how the repaired area is progressing. Tell the team about new locking or a shift in pain pattern.

Seek urgent advice for fever, worsening wound drainage, marked calf swelling, chest pain or breathlessness. Contact the team for a new locked knee, a loose-feeling fragment, rapidly increasing swelling or inability to follow the planned exercises because pain has changed. Early assessment can identify a problem before it disrupts rehabilitation.

Ask whether the lesion is stable, whether the fragment can be preserved, what procedure is proposed if it cannot, and how bone healing will be checked. Clarify brace use, weight-bearing limits, physiotherapy stages and the signs that should pause activity.