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Serious injuries
by and large cause a lot of swelling in the knee.
Especially in younger patients.
Now, someone could be arthritic and they get some swelling the next day,
but rapid onset of swelling that,
it's like hard to make out where your kneecap is,
is a pretty big, cardinal sign
that there's something serious that's happened to your knee.
Rapid onset of swelling is usually due to blood in the joint.
When you tear your ACL,
a little blood vessel tears also and you get a significant amount of swelling.
So a lot of the significant injuries people get rapid onset of swelling
within three to four hours.
So, if your knee looks like a grapefruit,
you should go get it checked.
It's not like,
oh, you just have a little patellofemoral pain from walking or jogging.
You need to seek attention.
C