What is articular cartilage?
Articular cartilage is the smooth surface covering the ends of bones inside a joint. It has limited ability to heal once significantly damaged.
Why cartilage injuries are different
A small focal defect in an otherwise healthy knee is very different from widespread cartilage loss across multiple compartments. Age, alignment, meniscus status, ligament stability and the underlying bone all influence treatment.
Possible treatment approaches
Depending on the defect and patient, treatment may include rehabilitation, activity modification, selected injections, arthroscopic assessment and cartilage restoration procedures.
In younger or appropriately selected patients with focal damage, joint-preserving options may be considered before replacement.
Frequently asked questions
Does an MRI cartilage defect always need surgery?
No. MRI findings must be matched with symptoms, examination, defect characteristics and the overall condition of the knee.
Can PRP regrow cartilage?
PRP may be used to help symptoms in selected patients, but it should not be described as reliably regrowing normal articular cartilage.
Medical information is educational and is not a substitute for personal medical advice or an in-person assessment. Treatment depends on symptoms, examination findings, imaging when needed and individual goals.