OCD grade III is characterized by which of the following?

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Multiple Choice

OCD grade III is characterized by which of the following?

Osteochondritis dissecans grading hinges on whether the fragment is detached and whether it has moved from its original location. Grade III describes a completely detached (fully discontinuous) osteochondral fragment that remains within the joint in place and has not displaced. This is why the description “fully discontinuous, but located in place” fits best: the fragment is separated from its bed but hasn’t migrated away. In contrast, a displaced fragment would be a loose body that has moved within the joint (grade IV), and a partially detached fragment still attached to the bone corresponds to a different grade. Healed cartilage with no fragment is not a doloras lesion at all.

Osteochondritis dissecans grading hinges on whether the fragment is detached and whether it has moved from its original location. Grade III describes a completely detached (fully discontinuous) osteochondral fragment that remains within the joint in place and has not displaced. This is why the description “fully discontinuous, but located in place” fits best: the fragment is separated from its bed but hasn’t migrated away.

In contrast, a displaced fragment would be a loose body that has moved within the joint (grade IV), and a partially detached fragment still attached to the bone corresponds to a different grade. Healed cartilage with no fragment is not a doloras lesion at all.

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