Gillespie,
I had my cruciate ligament repaired in my right knee five years ago. Like you, I was told by my doctor that an operation was not necessary and to build up my quad muscles.
However, my knee joint remained very unstable and would often fill with fluid. I finally had the operation and would thorughly recommend that you get it done sooner rather than later.
What I will say, is that it was particularly painful and that the physio was no fun at all!!
It was well worth it in the long run. I now run, cycle and play football with no after effects whatsoever.
Good luck.
