I have seen a chiropractor twice. The first time for a thorough examination and a little bit of treatment, the second for treatment. She thought I had torn the meniscus, which makes sense as it all came on very suddenly. The treatment consisted of manipulation very similar to what I had from a physiotherapist on my other knee nine years ago plus ultrasound (I think). There has been an improvement, but it is early days and I have had many set backs in the last year. She gave me one exercise which I thought I'd share. Stand with your feet little more than hip width apart and parallel, squat down, not very far, making sure that the knees point outwards. Apparently, women tend to point their knees inwards when they squat, modesty or years of wearing tight skirts. That puts a strain on the inside of the knee. Check next time you load or unload the washing machine. I started with five repeats and am aiming for twenty.