Risk factorsBy Mayo Clinic staff
Factors that may increase your risk include:
- Age. Patellofemoral pain syndrome typically affects adolescents and young adults. Knee problems in older populations are more commonly caused by arthritis.
- Sex. Women are twice as likely as men are to develop patellofemoral pain. This may be because a woman's wider pelvis increases the angle at which the bones in the knee joint meet.
- Certain sports. Participation in running and jumping sports can put extra stress on your knees, especially if you've recently increased your training level.
- 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 Dec. 5, 2012.
- O'Connor FG, et al. Patellofemoral pain syndrome. http://www.uptodate.com/index.html. Accessed Dec. 5, 2012.
- Runner's knee (Patellofemoral pain). American Academy of Orthopaedic Surgeons. http://orthoinfo.aaos.org/topic.cfm?topic=a00382. Accessed Dec. 5, 2012.
- Ferri FF. Ferri's Clinical Advisor 2013: 5 Books in 1. Philadelphia, Pa.: Mosby Elsevier; 2012. http://www.mdconsult.com/books/about.do?eid=4-u1.0-B978-0-323-08373-7..00002-9&isbn=978-0-323-08373-7&about=true&uniqId=343863096-23. Accessed Dec. 5, 2012.
- Laskowski ER (expert opinion). Mayo Clinic, Rochester, Minn. Dec. 6, 2012.