Thursday, July 26, 2007

Differentiate between 'locking' and 'pseudo-locking'

A locked knee gets totally stuck in a position from which it cannot be unlocked without help, while pseudolocking can be 'unlocked' just with a simple manoevre. Locking may be due to a number of things, but very often it is due to a bucket-handle tear of the meniscus ('cartilages'), where a bit of torn meniscus flicks itself over and gets stuck between the bones of the femur (thighbone) and tibia (shinbone). Giving way may also be due to a meniscal tear (and other things), but is a common complaint when the ACL is torn.

The combination of an ACL and a meniscal tear is very common - they may both occur at the same injury, or the meniscal tear may be a consequence of the disordered mechanics of the knee after an ACL tear.

Pseudo-locking and giving way can also be features of mal-tracking and plicae, but the symptoms in this case of of a lesser nature.

You really need a really competent clinical history taken (your story) and a thorough examination to assess what is happening, but it seems pretty certain that there is some internal derangement.


lee woo said...

The ache for home lives in all of us, the safe place where we can go as we are and not be questioned. See the link below for more info.


Silvia Jacinto said...

I accidentally viewed your blog and I was so amazed with your work that it touched
the deepness of my heart and it made me sentimental. Thanks for posting. Visit my site too.