What is OCD ?

Literally it means dessication or breaking away of a piece of cartilage and bone from within the knee.

Classically it occurs below the age of 18 but can sometimes present in older people.

It is twice as common in boys than girls, though the cause is still not entirely understood.

It usually presents as either

Investigations

An x ray usually demonstrates the abnormality
A CT scan or MRI will help clarify the size and position of the “lesion”

Treatment

This depends on the size and position of the lesion, though more on the problems it is causing.

The options include:

In this picture small pieces of cartilage and bone can be removed from one part of the knee and placed into the defect.

While still a new treatment, I have found this treatment to be very successful for treating problematic OCD

This is what it looks like at arthroscopy when the fragment is removed.

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