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A member asked:
Always crack the joint at my kneecap to relieve tension because it feels tight. sometimes it cracks involuntarily when i walk. will it injured my knee?
A doctor has provided 1 answer
No: If there is no pain, this will not injure your knee. The sound that occurs when "cracking" diarthrodial joints is thought to involve gas release from the synovial fluid inside the joint capsule. A bubble can actually be seen in a joint after cracking. Cracking is then impossible until the gas has redissolved. Kind of a science fun fact, but certainly no need to worry about injury.
Answered 5/1/2015
2.9k views
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