What is the condition?

Osteochondritis dissecans (OCD) of the elbow is a focal injury to the cartilage and underlying bone, most commonly affecting the capitellum (the outer part of the distal humerus that articulates with the radial head). It is usually seen in adolescents and young adults who participate in sports that repeatedly load the elbow, such as throwing and gymnastics.

 

The condition develops when repetitive compression and shear forces affect the subchondral bone under the cartilage. The bone becomes injured and may lose structural support for the cartilage. In early, stable lesions the cartilage surface may remain intact. In later, unstable lesions a fragment can loosen or detach and become a loose body.

 

What are the symptoms?

Typical symptoms are outer elbow pain with sport, swelling after activity, and reduced extension. As the lesion becomes unstable, catching or locking can occur due to fragment movement or loose bodies.

 

Symptoms often start gradually and may be missed early, particularly in young athletes who continue training.

 

How is it diagnosed?

X-rays may show changes in the capitellum, but early lesions can be subtle. MRI is useful to assess the cartilage surface and whether a lesion is stable or unstable.

 

CT can help define bony architecture and fragment size. Accurate staging guides management.

 

Non-surgical treatment

Stable lesions in younger athletes may be managed with a period of rest from aggravating sport, followed by a structured rehabilitation programme and gradual return to load. The goal is to reduce stress on the lesion while the bone recovers.

 

Load management is essential. Continuing to throw or weight-bear through the arm can worsen the lesion and increase the risk of instability.

 

Surgical treatment

Surgery is considered for unstable lesions, mechanical symptoms, loose bodies, or failure of non-surgical management. Arthroscopy is commonly used to assess the lesion and treat associated synovitis and loose bodies.

 

Depending on lesion size and stability, surgical options may include debridement of unstable tissue, drilling or microfracture to stimulate healing, fixation of a repairable fragment, or cartilage restoration procedures in selected cases.

 

Recovery and rehabilitation

Rehabilitation is staged and depends on the procedure. Early motion is encouraged, but return to throwing and impact loading is delayed and carefully progressed. Many athletes require several months before return to full sport, and longer if reconstruction or cartilage restoration is performed.

 

Expected outcomes

Stable lesions treated early have the best chance of recovery. Unstable lesions can still be treated effectively, but may carry a risk of persistent symptoms and later joint degeneration depending on the size of cartilage injury.

 

Risks and complications

Risks include persistent pain, stiffness, recurrent loose bodies, and progression to arthritis over time. Earlier diagnosis and appropriate load management improve outcomes.

 

When should I seek urgent review?

Seek urgent medical review if you develop increasing redness, heat, rapidly worsening swelling, fever, increasing pain that does not settle with rest, or new weakness or numbness in the hand. If you have had a recent injury and the elbow looks deformed, feels unstable, or you cannot move it, this also requires urgent assessment.

 

Surgery, Risks and Recovery

Surgery is considered when symptoms persist despite appropriate non-operative treatment, when imaging or nerve studies confirm structural pathology, or when weakness, locking, or mechanical symptoms are present.

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Operations are usually performed as day procedures under regional or general anaesthetic. Techniques depend on the underlying condition and may involve tendon debridement or repair, arthroscopic bone spur removal, loose body excision, fracture fixation, ligament reconstruction, nerve decompression, or joint replacement.

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General risks include infection, bleeding, stiffness, scar sensitivity, nerve irritation, persistent symptoms, recurrence, and the need for further surgery. Condition-specific risks are discussed prior to surgery.

Recovery varies according to the procedure performed. Gentle motion is usually encouraged early. Wounds typically heal within two weeks. Light activities resume over two to four weeks for minor procedures, while larger reconstructions or replacements may require several months of rehabilitation.

Patients often notice improvement within six to twelve weeks, although full recovery may continue for up to a year depending on the pathology treated.