- December 07, 2018 Before my surgery with Dr. Cole I couldn’t do any sort of jumping without feeling my knee would slip out of joint. It’s been 10 years since my surgery and I’m doing 50” box jumps and deep squatting with 315+ pounds. My knee is a little tighter than my uninjured knee and I will have some discomfort when I over work it, but it feels great other than that.