He will be able to squat just fine after he gets his partial knee replacement.
I will explain this the best I can. I have a friend at work who has a cadaver meniscus in one of his knees. He tore his original meniscus badly playing football in his younger years when he stepped in a pothole at a full sprint. Initially they tried to repair the meniscus the best they could, but eventually he got talked into getting it replaced with a cadaver meniscus. That repair has degenerated to the point that his knee is bone-on-bone. Is there any hope for this guy ever squatting again?
He will be able to squat just fine after he gets his partial knee replacement.
Excellent. He already knows that replacement is his only option now. He's actually holding out for stem cell research and 3d printing research to advance and come together in time to print him knee replacement parts.
He's a moron. He's holding out while his knee gets harder and harder to fix.
There's a trainer at my gym who's been trying a whole bunch of different radical new treatments for his torn up knee, platelet injections and all sorts of stuff. He's now passed 12 months on crutches...
I know. I've tried to make the argument that anything that gets him back to being able to train properly is the best long term solution for his knee, but you can only lead the horse to the water. It's his knee to fuck up as he sees fit. I was actually hoping there was a chance he could be doing squats now, but I suspected not.
Also, his main concern seems to be the life of the replacement. He's done more research on knee replacements than is probably good for his mental health. It seems that with a relatively active lifestyle the life of the hardware will only range from 6-10 years. He's still in his 30s. Is he in for a lifetime of knee replacements? Will squatting wear out the hardware more quickly, or put him at risk for a fracture?
USE of any type wears out hardware of any type. It's made to be used, and use causes it to wear. Is he more concerned with the life of the hardware than his own?
I've had platelet injections, and they do help. But if you can avoid them, I would. Short of breaking my leg (and maybe not even that), they were the most painful thing I've ever done.
For those who aren't familiar with the procedure, they draw blood from your arm, spin it around in a centrifuge, then take the Platelet-Rich Plasma (PRP) and stick it about 2 inches deep into your knee (for me). The needle itself sucks, but it's not as bad as the actual fluid being pushed in.
All that said, if that's all you're relying on, rather than effective rehab (squats, anyone?) you're entirely misinformed, or maybe just an idiot.