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Treating Osteochondritis Dissecans

Published on: 30-May-2019

(Left) The knee joint is formed where the femur meets the tibia. (Right) The most common site for OCD of the knee. Cartilage covers and protects the ends of your bones where they meet to form a joint.

Cause

It is not known exactly what causes the disruption to the blood supply and the resulting OCD. Doctors think it probably involves repetitive trauma or stresses to the bone over time.

Symptoms

Pain and swelling of a joint — often brought on by sports or physical activity — are the most common initial symptoms of OCD. Advanced cases of OCD may cause joint catching or locking.

Doctor Examination

After discussing your child’s symptoms and medical history, your doctor will perform a physical examination of the affected joint.

Other tests which may help your doctor confirm a diagnosis include:

X-rays. These imaging tests provide detailed pictures of dense structures, like bone. An x-ray of the affected joint is essential for an initial OCD diagnosis, and to evaluate the size and location of the OCD lesion.

Magnetic resonance imaging (MRI) and ultrasound. These studies can create better images of soft tissues like cartilage. An MRI can help your doctor evaluate the extent to which the overlying cartilage is affected.

Treatment

Observation and Activity Changes

In most cases, OCD lesions in children and young teens will heal on their own, especially when the body still has a great deal of growing to do. Resting and avoiding vigorous sports until symptoms resolve will often relieve pain and swelling.

Nonsurgical Treatment

If symptoms do not subside after a reasonable amount of time, your doctor may recommend the use of crutches, or splinting or casting the affected arm, leg or other joint for a short period of time.

In general, most children start to feel better over a 2- to 4-month course of rest and nonsurgical treatment. They usually return to all activities as symptoms improve.

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Surgical Treatment

Your doctor may recommend surgery if:

  • Nonsurgical treatment fails to relieve pain and swelling
  • The lesion is separated or detached from the surrounding bone and cartilage, moving around within the joint
  • The lesion is very large (greater than 1 centimeter in diameter), especially in older teens

There are different surgical techniques for treating OCD, depending upon the individual case.

  • Drilling into the lesion to create pathways for new blood vessels to nourish the affected area. This will encourage healing of the surrounding bone.
  • Holding the lesion in place with internal fixation (such as pins and screws).
  • Replacing the damaged area with a new piece of bone and cartilage (called a graft). This can help regenerate healthy bone and cartilage in the area damaged by OCD.

In general, crutches are required for about 6 weeks after surgical treatment, followed by a 2- to 4-month course of physical therapy to regain strength and motion in the affected joint.

A gradual return to sports may be possible after about 4 to 5 months.

The post Treating Osteochondritis Dissecans appeared first on Sports Medicine Weekly.