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Definition
By Mayo Clinic staffThe cartilage under your kneecap (patella) is a natural shock absorber. Overuse, injury or other factors may lead to a condition known as chondromalacia patella — a general term indicating damage to the cartilage under your kneecap. A more accurate term for chondromalacia patella is patellofemoral pain syndrome.
The most common symptom is knee pain that increases when you walk up or down stairs. Simple treatments — such as rest and ice — often help, but sometimes physical therapy or even surgery is needed to ease patellofemoral pain.
- Hudgins TH. Patellofemoral syndrome. In: Frontera WR, et al. Essentials of Physical Medicine and Rehabilitation. 2nd ed. Philadelphia, Pa.: Saunders Elsevier; 2008. http://www.mdconsult.com/das/book/body/203760062-4/1007205249/1678/68.html#4-u1.0-B978-1-4160-4007-1..50067-5--cesec14_1089. Accessed June 1, 2010.
- O'Connor FG, et al. Patellofemoral pain syndrome. http://www.uptodate.com/home/index.html. Accessed June 1, 2010.
- Runner's knee (Patellofemoral pain). American Academy of Orthopaedic Surgeons. http://orthoinfo.aaos.org/topic.cfm?topic=a00382. Accessed June 2, 2010.
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