This is a weird question but hell...yes, they're not as big as they used to be. The combination of not being completely sedentary, not having a drastic caloric deficit, and doing the things I'm able to do (deadlifts and other pulls, isometric work in the press, etc...) has preserved much of the musculature, but they're not quite what they were before. I certainly don't want to be top heavy, and I think what I'm doing will be enough to maintain a reasonable amount of lower body musculature. I was also able to leg press, albeit only relatively light before my knee became an issue, so if I gain access to that again, that could help a bit too. But leg extensions were absolute no-go.