Theories range from abnormal vascular anatomy (leading to ischemic injury of the bone), abnormal ossification of the epiphysis, trauma, endocrine imbalances or some combination of the above. For an elbow OCD, your child may be placed into a sling for up to 6 weeks. For a knee OCD lesion, your child may be placed on crutches for up to 6 weeks. For an ankle OCD lesion, your child may be placed in a boot or cast for up to 6 weeks. As a result, the small piece of bone and the cartilage covering it begin to crack and loosen. An OCD Lesion occurs usually in the knee, elbow, and ankle. The starved bone tissue starts to weaken and crumble, and, without this scaffold to support it, the cartilage can weaken as well. Various modalities and techniques exist, such as fixation, debridement, microfracture, and cartilage grafting/transplantation. The most "classic" location for OCD lesions of the knee is the lateral aspect of the medial femoral condyle of the distal femur. Sometimes, high impact activities, like basketball, can be difficult to play after OCD. Osteochondritis dissecans (OCD) of the knee is a debilitating disorder primarily affecting adolescents and young adults at a rate between 15 and 30 per 100,000 , . The lesion is then hinged open. In situ fixation of lesions can be performed using various types of metallic screws, bioabsorbable implants, or osteochondral plugs. Osteochondritis Dissecans (OCD) of the knee is an acquired, reversible, idiopathic condition of the subchondral bone. OCD lesions may occur in any joint, but are most common in the knee. OCD starts when a small area of bone just under the knee’s smooth cartilage loses some of its blood supply. The surgeon treated the OCD lesion by implanting a biomimetic osteochondral scaffold onto the lesion site, which was properly prepared. The affected area of subchondral bone and its attached articular cartilage can become loose and separate into the joint. promote OCD lesion healing, fixation methods, and salvage techniques. In these cases, no additional treatment is necessary. In summary, OCD is an abnormality of subchondral bone that most commonly affect the medial femoral condyle of the knee. Most areas of scientific inquiry concerning the knee revolve around the major ligaments and our knowledge of these injuries is so far advanced that often the remaining questions are minor fine-tuning. The lesion, which has multiple causes, has a loss of blood supply to a small portion of the bone. Generally, OCD seems to affect males more commonly than females (between 2:1 and 3:1). For unstable yet salvageable OCD lesions, the senior author’s preferred treatment is fixation with bone grafting. After a clinical examination of the knee with the patient under anesthesia and a formal arthroscopic evaluation of the knee, the OCD lesion is identified. AP films alone may miss a lesion on the posterior aspect of the medial femoral condyle. However, when the OCD lesion is more mature and has separated from the rest of the bone, either with the overlying cartilage intact, partially separated or completely separated (loose body), surgery is often needed to stimulate, graft, stabilize, or remove the OCD fragment. It is more common in boys and is generally bilateral. The lesion usually occurs in the knee on the lateral and posterior aspect of the medial femoral condyle (70% of lesions are in the posterolateral aspect of the knee). If OCD of the knee is suspected, AP, lateral, notch-view (knee in flexion) and skyline patella xrays should be ordered. 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