|Chondromalacia of the Knee|
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- Birth defect in knee alignment
- Weak quadriceps
- Muscle strength imbalance between the inside and outside of the thigh
- Direct trauma
- Participation in activities like running, skiing, cycling, or soccer that put repeated pressure on the patellofemoral joint
- Knock-knee abnormality of the leg
- Acute or chronic knee pain that worsens slowly over time
- A popping or cracking sound as the knee is flexed and extended
- Increased pain when climbing stairs, squatting, kneeling, or running
- Pain and stiffness in the knee after it is flexed for a long period of time
- Do not do activities that cause pain. This includes running, jumping, and weight lifting using the leg muscles.
- If normal walking hurts, shorten your stride.
- Do not play sports until your doctor has said it is safe to do so.
- Over-the-counter medication, such as ibuprofen or acetaminophen
- Topical pain medication—creams or patches that are applied to the skin to help with soft tissue pain
- Prescription pain relievers
- Moving the quadriceps muscle insertion on the lower leg to improve alignment
- Releasing the lateral thigh muscles and tightening the medial muscles
- Smoothing over the undersurface of the patella
- Implanting cartilage taken from one’s own knee
- Maintain a healthy weight to reduce stress on your knees.
- Properly warm up before exercising or doing any physical activity.
- Maintain proper strength by exercising the quadriceps, calf muscles, and hamstring muscles.
- Use proper footwear for your sport. You may need orthotic support to help correct misalignment.
- Slowly increase activity to avoid stress on the knee.
- Use proper form and technique for any sport.
American Academy of Orthopaedic Surgeons http://orthoinfo.org
American Orthopaedic Society for Sports Medicine http://www.sportsmed.org
Canadian Orthopaedic Association http://www.coa-aco.org
Canadian Orthopaedic Foundation http://www.canorth.org
Harris JD, Siston RA, Pan X, Flanigan DC. Autologous chondrocyte implantation: a systematic review. J Bone Joint Surg Am. 2010 Sep 15;92(12):2220-2233.
Knee pain. Merck Manual for Health Care Professionals website. Available at: http://www.merckmanuals.com/professional/injuries%5Fpoisoning/sports%5Finjury/knee%5Fpain.html. Updated October 2013. Accessed February 28, 2014.
Patellofemoral pain syndrome. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed. Updated July 10, 2013. Accessed February 28, 2014.
Patellofemoral pain syndrome (runner's knee). John Hopkins Medicine website. Available at: http://www.hopkinsmedicine.org/healthlibrary/conditions/adult/mens%5Fhealth/patellofemoral%5Fpain%5Fsyndrome%5Frunners%5Fknee%5F85,P07841/. Accessed February 28, 2014.
Runner's knee (patellofemoral pain). American Academy of Orthopaedic Surgeons website. Available at: http://orthoinfo.aaos.org/topic.cfm?topic=A00382. Updated August 2007. Accessed February 28, 2014.
Pihlajamäki HK, Kuikka PI, Leppänen VV, Kiuru MJ, Mattila VM. Reliability of clinical findings and magnetic resonance imaging for the diagnosis of chondromalacia patellae. J Bone Joint Surg Am. 2010 Apr;92(4):927-934.
Vasiliadis HS, Wasiak J, Salanti G. Autologous chondrocyte implantation for the treatment of cartilage lesions of the knee: a systematic review of randomized studies. Knee Surg Sports Traumatol Arthrosc. 2010 Dec;18(12):1645-1655.
- Reviewer: Teresa Briedwell, PT, DPT
- Review Date: 02/2014 -
- Update Date: 02/28/2014 -
This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.
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