Osteochondritis dissecans - knee

Case contributed by Domenico Nicoletti
Diagnosis certain


Pain and swelling about six months in a basketball player.

Patient Data

Age: 19 years
Gender: Male

Right knee joint


Osteochondral defect of the inner surface of the medial femoral condyle, with sclerotic margins and free fragment but not dislocated.

Case Discussion

Osteochondritis dissecans is a necrosis that affects only a small part, lenticular, the articular cartilage and the corresponding subchondral bone.

The bone is clearly demarcated the osteocartilaginous surrounding tissue to break away and become "free" in the 'articulation (called joint mice).

Osteochondritis dissecans occurs mainly in adolescence and is initially asymptomatic; as an adult, you have the first signs of pain and limitation of joint movement.

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.