Osteochondral Defect - Lesion

[O.C.D.]

Hi there

It's week 11 after having a bone graft on my right knee, to repear a 20mmx14mm ocd lesion on the weight bearing surface of the medial femoral condyle and full thickness tear of the cartilage.

My question is. Is it normal, my knee sounds like a bag of marble?
Is it possible the graft may have failed?

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[physiobob]

Interesting post, thanks. Here's some general bunf. I suppose you need to discuss the time frames with the surgeon. We you non-weight bearing for an extended period post the graft? Have you up to date MRI's

An excellent website with information on this condition can be seen at: Chester Knee Clinic | Knee Problems - Articular Cartilage Damage

Articular cartilage has no blood supply and its ability to repair itself is poor. Studies have shown that these lesions tend to progress in size and severity, affecting the rest of the articular cartilage and predisposing you to suffer from an early onset of arthritis, Once an osteochondral defect occurs, it must be identified and treated accordingly.

Treatment depends upon the size of the osteochondral defect and the condition of the overlying cartilage. For small-sized defects with intact cartilage, our treatment of choice is Retrograde Drilling of the lesion and filling it with a special bone cement. This allows us to treat the bone defect without affecting the cartilage. Should the cartilage be disrupted, then microdrilling or micropicking of the surface of the bone is preferred, stimulating the formation of fibrocartilage to replace the original cartilage that has been lost.

Larger lesions do not heal as well with the above-mentioned procedures as small defects do. Thus, they require a different approach to replace the damaged cartilage in the form of an Osteochondral Autologous Transfer (OATS), by which a graft of bone and cartilage is taken from the knee and implanted into the site of the defect.