Try sitting with your knee bent partially and see if you can push the kneecap ot one side or the other. Usually, it goes to the outside, but can go either way. If that happens, the anterior thigh muscles cannot hold the leg straight; indeed, they will cause the leg to double up further. Eitherknee braces or certain exercises will often help with that.
If all is well there, sit with your knee bent at a right angle to the thigh and have someone else grasp the leg just below the knee and see if they can either pull it forward or push it back. That would suggest a torn cruciate ligament, which would probably require a surgical repair.
hannah wrote:I am a wall hugger too
Sandy - that is very interesting
Do you mean leg bent and relaxed or tensed? If I really tense it then my kneecap doesn't move, but if it is relaxed it can go both ways (both legs). Would this explain why if I 'just walk' my knees give, but if I concentrate and overtense they don't (so much)?
I tried this one and the shin bone (I think) does shift forwards slightly - prob only 5-7mm. Again on both knees. But I have never knowingly had any proper knee injuries that I can remeber (although I probably sprained them at some point as a kid) so is this more likely to be due to general laxity rather than ligament tear? Would this explain why When I do the 'bridge' core stability exercise (feet on floor, lower leg upright, shoulders on floor, bum lifted up by activating core stab. muscles) my knees often feel like the shin bone is being slowly forced out of my knee? In which case should I be telling my physio about it?
Warning: trying this hurt so please be careful I really must learn to be gentle when doing this kind of thing rather than thinking 'of course mine won't cos I'm not that bendy, apply pressure ......... ooops maybe I am bendy after all
How come no-one has ever looked at these when I complain of collapsing legs and an inability to keep my knees operative?
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