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Home » Anatomy » Osteochondritis Dissecans (OCD) of the capitulum

Osteochondritis Dissecans (OCD) of the capitulum

Osteochondritis Dissecans (OCD) of the capitulum is a relatively rare yet impactful condition that affects the elbow joint, particularly the round, bony prominence on the outer side of the lower arm, known as the capitulum. This disorder involves the detachment of a piece of cartilage and underlying bone from the joint surface. While less common than its counterpart in the knee, OCD of the capitulum demands attention due to its potential to cause pain, limited joint movement, and long-term joint damage.

Understanding Osteochondritis Dissecans of the Capitulum

Osteochondritis dissecans in the elbow, particularly in the capitulum, typically occurs among adolescents and young adults. The condition is thought to arise due to reduced blood flow to the subchondral bone (the layer of bone just beneath the cartilage) leading to cartilage degeneration and eventual detachment.

Causes and Risk Factors

Several factors contribute to the development of OCD of the capitulum:

  1. Overuse and Repetitive Stress: Athletes engaging in repetitive motions like pitching in baseball or overhead throwing sports can subject the elbow joint to excessive stress, increasing the risk of OCD.
  2. Age and Growth: Adolescents during their growth spurts are more susceptible as the growing bones might struggle to keep up with rapid cartilage development.
  3. Genetics: Family history and genetic factors may play a role in the development of OCD.


The symptoms of OCD of the capitulum can vary in intensity:

  1. Pain: Pain, especially when gripping or rotating the forearm, is a common indicator. The pain might be intermittent, aggravated during physical activities, and sometimes even while at rest.
  2. Limited Range of Motion: Reduced joint mobility and stiffness in the elbow can make it challenging to perform everyday tasks.
  3. Catching or Locking Sensation: Some individuals might experience a sensation of the joint catching or locking, often accompanied by a clicking sound.
  4. Swelling: Swelling around the elbow joint may occur, particularly after physical activities.


Accurate diagnosis is crucial for effective management of OCD of the capitulum. A combination of medical history, physical examination, and diagnostic imaging, such as X-rays and MRI scans, helps confirm the condition and assess the extent of joint damage.

Treatment Approaches

The treatment approach for OCD of the capitulum depends on the severity of the condition and the patient’s age. Here are some key strategies:

  1. Conservative Treatment: For mild cases or in younger patients with growth plates still open, conservative measures like rest, ice, anti-inflammatory medications, and physical therapy might be sufficient.
  2. Activity Modification: Athletes may need to modify their activities to reduce stress on the elbow joint and promote healing.
  3. Bracing or Immobilization: In some cases, wearing a brace or cast may be recommended to limit joint movement and allow healing.
  4. Surgical Intervention: For more severe cases or when conservative methods fail, surgical procedures like arthroscopy or open surgery may be considered. These procedures involve removing loose fragments, stimulating blood flow, and promoting healing.

Recovery and Rehabilitation

After treatment, a comprehensive rehabilitation program is essential to restore strength, flexibility, and joint function. Physical therapy focuses on strengthening the surrounding muscles, improving joint stability, and gradually reintroducing activities.

Prevention and Outlook

While it may not always be possible to prevent OCD of the capitulum, certain measures can minimize the risk, such as maintaining proper pitching mechanics, avoiding overuse, and taking regular breaks during repetitive activities. Timely diagnosis and appropriate treatment offer a favorable prognosis, especially when combined with committed rehabilitation efforts.


Osteochondritis Dissecans of the capitulum serves as a reminder that joint health requires careful attention, especially during the formative years. Awareness of risk factors, early diagnosis, and adherence to treatment plans can pave the way to recovery and a return to an active, pain-free life. Whether through conservative approaches or surgical intervention, addressing OCD of the capitellum underscores the significance of joint care and emphasizes the resilience of the human body in overcoming challenges.

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