Anterior Knee Pain - What Does It Mean?
Patellofemoral arthritis (arthritis damage behind your kneecap or patella) is a common cause of anterior knee pain. The patellofemoral joint is composed of the bony patella (kneecap), a sesamoid bone embedded in the quadriceps (thigh muscles) and patella tendons and femur (thigh bone). A prepatellar bursa (fluid-filled sac) separates your kneecap from overlying skin. The patella sits within the intercondylar or trochlear groove where the lateral condyle is of slightly greater diameter than the medial condyle.
In healthy knees, the articular cartilage of the patellofemoral joint can reach a thickness of 7-8 mm and functions as a potent shock absorber. A complex matrix of glycosaminoglycans lowers the friction coefficient and creates a nearly frictionless surface for flexion and extension movement of your knee.
Patellofemoral #arthritis refers to degenerative changes to the joint. Chondromalacia refers to degenerative changes in the articular cartilage of the patella that frequently precipitate the development of #osteoarthritis. Patellofemoral arthritis should be considered a separate disease from medial and lateral compartment femorotibial arthritis and may be unicompartmental or associated with arthritis damage in either the medial or lateral compartments (or both).
Risk factors for Patellofemoral Arthritis include:
age, obesity, h/o patellar fracture, prior dislocation/subluxation, overuse and h/o arthritis in other joints. Systemic inflammatory disorders such as rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis, juvenile idiopathic arthritis, and systemic lupus erythematosus are among other risk factors. ACL reconstruction with either hamstring or patella graft is another risk factor for developing #patellofemoral arthritis.
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In the operating room, I get to perform more than 600 hip & knee replacement surgeries each year. From LIVE surgical demos to viral video highlights, together let's explore - react - discuss all things related to bone and joint health
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Opinions expressed are solely my own and do not express the views or opinions of my employer. Information in this video is not intended or implied to be a substitute for professional medical advice, diagnosis and/or treatment. All content [images, digital graphics, text, and other information] contained in this video is for general information purposes only and does not replace or substitute for a consultation with a qualified physician or health professional.
