You cannot cure it, that is how your bone grows. It doesn't effect anything too.
you have had a fall
You can keep your legs still at a posting or rising trot by squeezing with your knee calves. If you squeeze with just your knee calves, from there down to the stirrups it should be still. Unless you have a horse like me where you have to bump him in a rhythmic motion to keep him at an extended trot. So the answer is to squeeze more with you knee calves instead of using your feet to post.
You can wear knee socks without showing your legs by wearing a long skirt.
I get them on my arms. sometimes on my legs too(:
The knee joint.
Deep knee bends.
Sartorius.
The things on your legs, and the things on you arms!
A TWO KNEE FISH =]
Exercise: jogging, lunges, deep knee bends
behind the calf and knee
A TWO KNEE FISH =]