Guys, I have a torn meniscus in my right knee and can't run. I'm not afraid of falling (obviously), I just can't run!

MJH2, yea, you trade off much lower drag but fewer bigger studs. Mine are great for commuting in so so weather, not ideal for glare ice. They are fine for lakes and smooth ice, the problem is crowned ice or ice ruts where your tire wants to slide. There aren't enough studs far enough out on the tire to grab well and ... then ... boom goes the dynamite.