Causes
By Mayo Clinic staffOsteoarthritis occurs when the cartilage that cushions the ends of bones in your joints deteriorates over time. Cartilage is a firm, slippery tissue that permits nearly frictionless joint motion. In osteoarthritis, the slick surface of the cartilage becomes rough. Eventually, if the cartilage wears down completely, you may be left with bone rubbing on bone.
- Osteoarthritis. National Institute of Arthritis and Musculoskeletal and Skin Diseases. http://www.niams.nih.gov/Health_Info/Osteoarthritis/default.asp. Accessed Feb. 13, 2013.
- Goldman L, et al. Cecil Medicine. 24th ed. Philadelphia, Pa.: Saunders Elsevier; 2012. http://www.mdconsult.com/das/book/body/191371208-2/0/1492/0.html#. Accessed Feb. 13, 2013.
- AskMayoExpert. Osteoarthritis. Rochester, Minn.: Mayo Foundation for Medical Education and Research; 2012.
- Frontera WR, et al. Essentials of Physical Medicine and Rehabilitation: Musculoskeletal Disorders, Pain, and Rehabilitation. 2nd ed. Philadelphia, Pa.: Saunders Elsevier; 2008. http://www.mdconsult.com/das/book/body/208746819-6/0/1678/0.html. Accessed Feb. 13, 2013.
- Kalunian KC. Risk factors and possible causes of osteoarthritis. http://www.uptodate.com/home. Accessed Feb. 13, 2013.
- Firestein GS, et al. Kelley's Textbook of Rheumatology. 9th ed. Philadelphia, Pa.: Saunders Elsevier; 2013. http://www.mdconsult.com/das/book/body/208746819-6/0/1807/0.html. Accessed Feb. 13, 2013.
- Kalunian KC. Diagnosis and classification of osteoarthritis. http://www.uptodate.com/home. Accessed Feb. 13, 2013.
- Total knee replacement. American Academy of Orthopedic Surgeons. http://orthoinfo.aaos.org/topic.cfm?topic=A00389. Accessed Feb. 15, 2013.
- Lorig K, et al. The Arthritis Helpbook. 6th ed. Cambridge, Mass.: Da Capo Press; 2006.


Find Mayo Clinic on