View the Health Heart Book

Free

E-Newsletters

Subscribe to receive the latest updates on health topics. About our newsletters

  • Housecall
  • Alzheimer's caregiving
  • Living with cancer
Connect with others who've been there. Share stories. Learn. Join Mayo Clinic's
online community.

Tests and diagnosis

By Mayo Clinic staff

Imaging tests

  • X-ray. Your doctor may first recommend having an X-ray, which can help detect bone fractures and degenerative joint disease.
  • Computerized tomography (CT) scan. CT scanners combine X-rays taken from many different angles, to create cross-sectional images of the inside of your body. CT scans can help diagnose bone problems and detect loose bodies.
  • Ultrasound. This technology uses sound waves to produce real-time images of the structures within and around your knee, and how they are working. Your doctor may want to maneuver your knee into different positions during the ultrasound, to check for specific problems.
  • Magnetic resonance imaging. MRI uses radio waves and a powerful magnet to create 3-D images of the inside of your knee. This test is particularly useful in revealing injuries to soft tissues such as ligaments, tendons, cartilage and muscles.

Lab tests
If your doctor suspects an infection, gout or pseudogout, you're likely to have blood tests and sometimes arthrocentesis, a procedure in which a small amount of fluid is removed from within your knee joint with a needle and sent to a laboratory for analysis.

Treatments and drugs Preparing for your appointment
References
  1. Questions and answers about knee problems. National Institute of Arthritis and Musculoskeletal and Skin Diseases. http://www.niams.nih.gov/Health_Info/Knee_Problems/default.asp. Accessed July 23, 2010.
  2. Huddleston JI, et al. Hip and knee pain. In: Firestein GS, et al. Kelley's Textbook of Rheumatology. 8th ed. Philadelphia, Pa.: W.B. Saunders Co.; 2008. http://www.mdconsult.com/das/book/body/211216621-3/1029261530/1807/290.html#4-u1.0-B978-1-4160-3285-4..10042-7--s0010_1200. Accessed July 23, 2010.
  3. Anderson RJ, et al. Evaluation of the adult patient with knee pain. http://www.uptodate.com/home/index.html. Accessed July 23, 2010.
  4. Common knee injuries. American Academy of Orthopaedic Surgeons. http://www.orthoinfo.org/topic.cfm?topic=A00325. Accessed July 23, 2010.
  5. Zeller JL, et al. JAMA patient page: Knee pain. Journal of the American Medical Association. 2007;297:1740.
  6. Pallin DJ, et al. Knee injuries. In: Marx JA, et al. Rosen's Emergency Medicine. 7th ed. Philadelphia, Pa.: Mosby Elsevier; 2009. http://www.mdconsult.com/book/player/book.do?method=display&type=bookPage&decorator=header&eid=4-u1.0-B978-0-323-05472-0..00054-2--s0150&displayedEid=4-u1.0-B978-0-323-05472-0..00054-2--s0460&uniq=211216621&isbn=978-0-323-05472-0&sid=1029279549. Accessed July 23, 2010.
  7. Pseudogout. American College of Rheumatology. http://www.rheumatology.org/public/factsheets/diseases_and_conditions/pseudogout. Accessed July 23, 2010.
  8. Pallin DJ, et al. Diagnostic strategies. In: Marx JA, et al. Rosen's Emergency Medicine. 7th ed. Philadelphia, Pa.: Mosby Elsevier; 2009. http://www.mdconsult.com/book/player/book.do?method=display&type=bookPage&decorator=header&eid=4-u1.0-B978-0-323-05472-0..00054-2--s0150&displayedEid=4-u1.0-B978-0-323-05472-0..00054-2--s0470&uniq=211216621&isbn=978-0-323-05472-0&sid=1029395050#lpState=open&lpTab=contentsTab&content=4-u1.0-B978-0-323-05472-0..00054-2--s0100%3Bfrom%3Dtoc%3Btype%3DbookPage%3Bisbn%3D978-0-323-05472-0. Accessed July 23, 2010.
  9. Care of the aging or post-traumatic knee. American Academy of Orthopaedic Surgeons. http://orthoinfo.aaos.org/topic.cfm?topic=A00344. Accessed July 23, 2010.
  10. Knee bracing: What works? American Academy of Family Physicians. http://familydoctor.org/online/famdocen/home/healthy/physical/injuries/490.html. Accessed July 23, 2010.
  11. Roberts WN. Intraarticular and soft tissue injections: What agents to inject and how frequently? http://www.uptodate.com/home/index.html. Accessed July 23, 2010.
  12. LeBlanc KE, et al. Musculoskeletal disorders. Primary Care Clinical Office Practice. 2010;37:389.
  13. Knee implants. American Academy of Orthopaedic Surgeons. http://orthoinfo.aaos.org/topic.cfm?topic=A00221. Accessed July 23, 2010.
  14. Anderson BC. Patient information: Knee pain. http://www.uptodate.com/home/index.html. Accessed July 26, 2010.
  15. Acupuncture for pain. National Center for Complementary and Alternative Medicine. http://nccam.nih.gov/health/acupuncture/acupuncture-for-pain.htm. Accessed July 26, 2010.
  16. Laskowski ER (expert opinion). Mayo Clinic, Rochester, Minn. July 26, 2010.
DS00555 Sept. 9, 2010

© 1998-2012 Mayo Foundation for Medical Education and Research (MFMER). All rights reserved. A single copy of these materials may be reprinted for noncommercial personal use only. "Mayo," "Mayo Clinic," "MayoClinic.com," "EmbodyHealth," "Enhance your life," and the triple-shield Mayo Clinic logo are trademarks of Mayo Foundation for Medical Education and Research.

Print Share Reprints

Advertisement


Text Size: smaller largerlarger