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A member asked:
I'm having pain in my right knee, when i straighten my leg it feels as my knee "locks up" and has a loud painful pop behind my kneecap.
3 doctors weighed in across 2 answers
Knee: As age continues there is problem of knee cap gliding smoothly along groove in tibia. Normal is smooth as glass gliding over ice. Time creates changes undersurface knee cap as well as muscular imbalance. Generally hamstrings tight which can also affect low back. Called patello-femoral syndrome. Some injures over years lead to this. A good physician or physical therapist can make definitive diag.
Answered 10/5/2018
5.3k views
Something impinging: If it is new, it can be anything from a plica around kneecap to a meniscal tear, to an articular cartilage lesion.
Answered 3/11/2013
5.3k views
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