IainC,
I was suggested to go to a place in the west end, on Park Road, across from the Doublet, called the Park Practice.
I went due to back problems, and saw an American woman called Dawn after a recommendation from a friend of mine who is a personal trainer.
Anyway, after only one visit, I've never had an issue with my back since. It's not knees, I know, but my pain was related to an imbalance in knee strength caused by a bicycle/bus interaction two decades previous.
0141 334 1211
Actually, it's a chiropractor, so it may well be unsuited for your needs, but there is a connection (back-bone, hip-bone, knee-bone and all that!). However, you seem like a good guy, even if you have ridden my bike. 😀
Hope you find some relief.