An area of the surface of the knee loses its blood supply and cartilage +/- bone can fragment off
Aetiology
- Most common in adolescence
Clinical presentation
- Knee pain
- Recurrent effusions of the knee
- Some asymptomatic
Investigations
- X-ray, MRI
Management
- Can heal or resolve spontaneously
- Indications for surgery controversial
- If detaching on MRI can pin in place
- If detached can fix or remove
- May consider cartilage regeneration for persistent pain
- Needs specialist referral
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