Osteochondritis dissecans

by Zoë Schopick

New Terms Used!

You may see some new terms in this poster that you are unfamilier with. Here are some definitions to those words:

  • Joint-a point in the skeleton where two bones meet that allows for motion
  • X-ray-an image of the internal structure of a body part taken by rays of light passing through the body
  • CT scan-computerized tomography-a series of X-rays from different angles that show a cross section of the body
  • MRI scan-magnetic resonance imaging-an image of organs and tissues within the body created using a magnetic field and radio waves
  • Drilling-making a hole in a bone or other hard surface

Disorder Summary:

Osteochondritis dissecans (OCD) is when a fragment of cartilage from a joint detaches. This fragment can stay in place or even become lodged in the joint. Trauma and vigorous exercise can sometimes lead to OCD, but not much is known about what causes it. Some inherited traits are thought to lead to a greater risk of OCD such as being short. Low vitamin D in elderly patients can cause OCD. It is most common in adolescent boys aged ten to twenty.
Big image

Body Parts Affected:

This disease always affects joints. The ones most commonly affected are the knees, elbows, and ankles (see pictures below).

Signs and Symptoms

When someone has OCD they may experience pain or swelling in the joint affected or a limited range of movement in that joint.

To diagnose or test...

The doctor will ask about pain in or around the joint. They will ask about the activity where it was hurt and when it hurts. X-rays can show OCD, but most often a CT scan or MRI scan is needed.


If the cartilage is in place the joint can be treated with rest and immobilization. If the injury is treated nonsurgically the patient should be off the injured area for six to eight weeks. Usually surgery is needed if the cartilage is lodged in the joint. Drilling is used to supply blood to the injured area and start healing.


Young patients typically can recover and return to sports and vigorous activities This is less likely in older patients who do not usually fully recover and could later develop arthritis in the injured joint. Recovery from the surgery usually takes a few weeks, but the joint might never return to the state it was in before the injury.


Traumatic occurrences can be unavoidable, but by maintaining strength and balance in joints osteochondritis dissecans can be prevented in sports.
Big image


OCD is relatively rare. It only affects fifteen to thirty people in one hundred thousand.

Did you know…?

Dogs can get ostochondritis dissecans too, just like people! Read more about it from the link below.
Watch this video to see the surgery to fix OCD in the knee
Surgical Correction of Osteochondritis Dissecans (OCD) of the Knee


"Flat Feet." Orthopod. Web. 8 Dec. 2014. <http://www.eorthopod.com/flat-feet/topic/232>.

"Knee Joint." Evantomarket. Web. 8 Dec. 2014. <http://graphicriver.net/item/human-knee-joint/3994402>.

"Right Elbow-mediocaudal View." Skeleton of the Caprine Thoracic Limb. Web. 8 Dec. 2014. <http://cal.vet.upenn.edu/projects/grossanat/largemenu/rthlskelb.htm>.

"Test and Procedures CT Scan." Mayp Clinic. Web. 8 Dec. 2014. <http://www.mayoclinic.org/tests-procedures/ct-scan/basics/definition/prc-20014610>.

"Drill." Medical Dictionary. Web. 8 Dec. 2014. <http://medical-dictionary.thefreedictionary.com/drill>.

"Osteochondritis Dissecans." OrthoInfo. American Academy of Orthopaedic Surgeons. Web. 8 Dec. 2014. <http://orthoinfo.aaos.org/topic.cfm?topic=A00610>.

Preece, Dan. "Osteochondral Defects." Salt Lake Podiatry Center Bog. 27 Feb. 2014. Web. 8 Dec. 2014. <http://saltlakepodiatrist.com>.

"Osteochondritis Dissecans of the Knee." Portfolio. Web. 8 Dec. 2014. <http://users.rowan.edu/~capano66/portfolio.html>.

"osteochondritis dissecans." Health Reference Center. Facts On File, Inc. Web. 25 Nov. 2014. <http://www.fofweb.com/activelink2.asp?ItemID=WE48&SID=5&iPin=ESM0111&SingleRecord=True>.