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Tests and diagnosis
By Mayo Clinic staff- X-rays. X-rays can show abnormalities in the joint's bones. Your doctor may recommend that both joints be X-rayed (both the right and left knee, for example) to compare them.
- Computerized tomography (CT). This technique combines X-ray images taken from many different angles to produce cross-sectional images of internal structures. CT scans can visualize cartilage as well as bone. This is useful in pinpointing the location of loose fragments within the joint.
- Magnetic resonance imaging (MRI). Utilizing radio waves and a strong magnetic field, MRIs can provide detailed images of both hard and soft tissues. Doctors frequently use MRI to help decide whether healing will occur with conservative treatment or whether surgery is necessary.
References
- Mercier LR. Osteochondritis dissecans. In: Ferri FF. Ferri's Clinical Advisor 2010. Philadelphia, Pa.: Mosby Elsevier; 2009. http://www.mdconsult.com/das/book/body/184489481-4/955662914/2088/462.html#4-u1.0-B978-0-323-05609-0..00024-1--sc0065_9490. Accessed Feb. 19, 2010.
- Miller RH, et al. Osteochondritis dissecans. In: Canale ST, et al. Campbell's Operative Orthopaedics. 11th ed. Philadelphia, Pa.: Mosby Elsevier; 2007. http://www.mdconsult.com/das/book/body/184489481-4/955662914/1584/334.html#4-u1.0-B978-0-323-03329-9..50046-5--cesec134_2356. Accessed Feb. 19, 2010.
- Osteochondritis dissecans. American Academy of Family Physicians. http://familydoctor.org/online/famdocen/home/articles/488.printerview.html. Accessed Feb. 19, 2010.
- Knee problems. National Institute of Arthritis and Musculoskeletal and Skin Diseases. http://www.niams.nih.gov/Health_Info/Knee_Problems/default.asp. Accessed Feb. 19, 2010.
- Chorley J, et al. Clinical features and management of ankle pain in the young athlete. http://www.uptodate.com/home/index.html. Accessed Feb. 19, 2010.
- Laskowski ER (expert opinion). Mayo Clinic, Rochester, Minn. Feb. 22, 2010.
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