Having been in marching bands for nearly half of my life, I would like to know exactly why it is that we don't lock our knees while standing at attention. I've seen people get nauseous, see spots, and even pass out from locking their knees and I was wondering, anatomically, why this occurs. If it is because of cutting off circulation, which specific vein/artery is being pinched?
The knee joints can lock if something get stuck between the 2 joint surfaces. The jointâs surfaces are normally very smooth and allow joint movements. They are covered with synovial cartilage. Various conditions (inflammations, degenerative processes and traumas) can damage the cartilage and make joint movements painful, restricted or even completely impossible. In the case of joint inflammation (arthritis) cartilage becomes damaged by inflammation. Then, the chronic inflammatory process creates connective tissue that makes âbridgesâ between the two surfaces and disables the movements.
"Ask a Doctor" questions are answered by certified physicians and other medical professionals.
For more information about experts participating in the "Ask a Doctor" Network, please visit our
medical experts page.
You may also visit our Arthritis , for moderated patient to patient support and information.
The information provided on eHealth Forum is designed to improve, not replace, the relationship between a patient and his/her own physician.
Personal consultation(s) with a qualified medical professional is the proper means for diagnosing any medical condition.