During the physical exam, your doctor will closely examine your affected joint, checking for tenderness, swelling or redness, and for range of motion in the joint. Your doctor may also recommend imaging and lab tests.
Pictures of the affected joint can be obtained during imaging tests. Examples include:
- X-rays. Cartilage doesn't show up on X-ray images, but cartilage loss is revealed by a narrowing of the space between the bones in your joint. An X-ray may also show bone spurs around a joint. Some people may have X-ray evidence of osteoarthritis before they experience any symptoms.
- Magnetic resonance imaging (MRI). An MRI uses radio waves and a strong magnetic field to produce detailed images of bone and soft tissues, including cartilage. An MRI isn't commonly needed to diagnose osteoarthritis but may help provide more information in complex cases.
Analyzing your blood or joint fluid can help confirm the diagnosis.
- Blood tests. Although there is no blood test for osteoarthritis, certain tests may help rule out other causes of joint pain, such as rheumatoid arthritis.
- Joint fluid analysis. Your doctor may use a needle to draw fluid out of the affected joint. Examining and testing the fluid from your joint can determine if there's inflammation and if your pain is caused by gout or an infection.
Aug. 16, 2017
- Glyn-Jones S, et al. Osteoarthritis. The Lancet. 2015;386:376.
- Goldman L, et al., eds. Osteoarthritis. In: Goldman-Cecil Medicine. 25th ed. Philadelphia, Pa.: Saunders Elsevier; 2016. http://www.clinicalkey.com. Accessed Jan. 31, 2016.
- Osteoarthritis. National Institute of Arthritis and Musculoskeletal and Skin Diseases. http://www.niams.nih.gov/Health_Info/Osteoarthritis/default.asp. Accessed Feb. 4, 2016.
- Ferri FF. Osteoarthritis. In: Ferri's Clinical Advisor 2016. Philadelphia, Pa.: Mosby Elsevier; 2016. https://www.clinicalkey.com. Accessed Jan. 31, 2016.
- Kalunian KC. Risk factors and possible causes of osteoarthritis. http://www.uptodate.com/home. Accessed Feb. 1, 2016.
- Zheng H, et al. Body mass index and risk of knee osteoarthritis: Systematic review and meta-analysis of prospective studies. BMJ Open. 2015;5:1.
- Kalunian KC. Nonpharmacologic therapy of osteoarthritis. http://www.uptodate.com/home. Accessed Feb. 1, 2016.
- Percope de Andrade MA. Supplementary methods in the nonsurgical treatment of osteoarthritis. Arthroscopy: The Journal of Arthroscopic and Related Surgery. 2015;31:785.
- Total knee replacement. American Academy of Orthopaedic Surgeons. http://orthoinfo.aaos.org/topic.cfm?topic=A00389. Accessed Feb. 1, 2016.
- Henrotin Y, et al. What is the current status of chondroitin sulfate and glucosamine for the treatment of knee osteoarthritis? Maturitas. 2014;78:184.
- Christiansen BA, et al. Management of osteoarthritis with avocado/soybean unsaponifiables. Cartilage. 2015;6:30.
- Cheung C, et al. Effects of yoga on symptoms, physical function, and psychosocial outcomes in adults with osteoarthritis. American Journal of Physical Medicine Rehabilitation. 2016;95:139.
- Moonaz S, et al. Yoga in sedentary adults with arthritis: Effects of a randomized controlled pragmatic trial. Journal of Rheumatology. 2015;42:1194.
- Chang-Miller A (expert opinion). Mayo Clinic, Rochester, Minn. Feb. 25, 2016.