OCD, or Osteochondritis dissecans elbow, is a joint condition that commonly affects adolescent athletes, particularly those involved in repetitive overhead throwing (tennis and baseball) and gymnastics. If not diagnosed and managed early, OCD can result in long-term joint damage, pain, and reduced range of motion, ultimately affecting an athlete’s performance. What is OCD of the elbow, and how do we manage it? 

What is OCD of the elbow? 

Osteochondritis of the elbow occurs when the outside part of the elbow, the capitellum, loses its blood supply, leading to cartilage and bone softening and breakdown. If sports activities are not restricted early, the bones can fragment and die, causing joint damage and loose body formation. 

Generally, this condition typically occurs in active adolescents in upper body weight-bearing activities such as baseball, tennis, weightlifting and gymnastics. Usually, the the capitellum of the dominat arm is involved although it may occur in both elbos in 20% of cases. 

Causes of OCD of the elbow 

The exact cause of elbow osteochondritis dissecans is not unknown. However, we believe that repeated trauma causes a loss of blood supply in the affected bone. In adolescent athletes, excessive and prolonged stress on the elbow joint from activities such as baseball pitching, tennis serving, and gymnastics can increase the risk of injury. 

Other factors include genetics, growth plate immaturity, and improper training or throwing techniques. Young athletes who specialise early in high-risk sports without adequate rest periods are at higher risk.

Assessment of Suspected Osteochondritis Dissecans Elbow

skeleton picture with highlighted elbow joint

A thorough clinical examination is essential for diagnosing OCD of the elbow. The most common symptom is the gradual onset of outside elbow pain, which worsens with activity. Sometimes, symptoms are so mild that they rarely affect sport. Athletes may experience stiffness, swelling, and mechanical symptoms such as clicking, locking, or catching as the disease worsens. 

During the physical examination, your doctor will look for tenderness at the outside elbow joint and restricted range of motion, especially in elbow extension. The Wilson’s Test is often used to assess elbow OCD. In this test, the athlete bends the elbow while rotating the forearm in different directions. Reproducing pain with specific movements suggests OCD of the elbow.

Investigations

Imaging is crucial in confirming the diagnosis and determining the severity of OCD lesions.

X-rays are the first-line imaging modality and may show flattening, irregularity, or fragmentation of the outside of the elbow, called the capitellum. However, one study found that about 50% of early-stage lesions may not be visible on X-ray.

MRI is the gold standard for detecting OCD in its early stages. It provides detailed views of bone and cartilage and can determine whether the lesion is stable or unstable. 

CT scan is suitable for detecting loose bodies and bony fragments. 

Differential Diagnoses

Several conditions can present similarly to elbow OCD in adolescent athletes, making it essential to consider alternative diagnoses:

  • Panner’s Disease: A self-limiting condition that also affects the capitellum in younger children but involves temporary disruption of bone development rather than proper cartilage separation.
  • Tennis Elbow: Although rare in adolescents, chronic lateral elbow pain may sometimes be mistaken for a tendinopathy rather than an osteochondral injury.
  • Ulnar Collateral Ligament (UCL) Injury: In throwing athletes, medial elbow instability from UCL damage may cause compensatory lateral elbow pain.
  • Elbow Osteoarthritis: Although rare in young athletes, early degenerative changes due to chronic repetitive stress could contribute to symptoms.

Treatment of Osteochondritis Dissecans

Management of elbow OCD depends on the cartilage fragment’s stability and the athlete’s age. Generally, stable lesions in younger athletes with open growth plates heal better. 

Non-Surgical Treatment

In early-stage OCD, where the lesion is stable on MRI, rest and offloading are often effective.

  • Activity modification is crucial to allow the bone to heal. Athletes avoid all activities that involve stress on the elbow elbow, including throwing and weight-bearing exercises.
  • Sometimes, a hinged elbow brace or splint may be necessary to reduce stress on the affected joint. Some doctors suggest cast immobilisation for 4 weeks in to improve healing. 
  • Physiotherapy is crucial in restoring arm strength and flexibility. Exercises should also focus on shoulder and core stability to reduce excessive stress on the elbow.
  • Adequate calcium and vitamin D intake is essential to encourage bone healing.
  • Follow-up imaging is required every 6 weeks to monitor healing. Generally, it takes up to six months to return to sport. 

Surgical Treatment

Surgery is indicated in cases where:

  • The lesion is unstable or detached.
  • There is persistent pain despite six months of conservative treatment, or mechanical symptoms such as locking or catching develop.

Surgical options include drilling of the cartilage, fragment fixation with pins or screws or cartilage grafting. Return to sport after surgery will take up to 12 months. 

Long-term outcomes depend on the stage of OCD at diagnosis and the treatment approach. Athletes diagnosed early and managed appropriately often achieve full recovery. However, those with delayed diagnosis or unstable lesions may develop early-onset osteoarthritis or chronic pain, impacting their ability to perform at high levels.

Other frequently asked questions about osteochondritis dissecans of the elbow.

What activities are not prohibited during the healing phase of OCD of the elbow? 

We recommend avoiding throwing, using a racquet, push-ups, arm wrestling, and weightlifting. Running, cycling, swimming, and fielding(catching a ball) are usually allowed. 

How common is OCD of the elbow in sporty adolescents? 

One study found that 3.4% of baseball players had OCD of the elbow. 

Final Word from Sportdoctorlondon about OCD of the elbow

Osteochondritis dissecans of the elbow is a serious condition in adolescent athletes. Early diagnosis and treatment are crucial to improving short—and long-term outcomes. With proper management and rehabilitation, most athletes can return to sports. If an adolescent athlete experiences persistent elbow pain or stiffness, prompt assessment by a sports medicine doctor is essential. 

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