After 10 years of training judo and training with excelent judokas, one guy didn't break my balance, but instead everything in my right knee with his attempt of a tiatoshi. I tried several times to get back into the sport, but the knee injuirees stuck with me my whole life and there just wasn't a chance to do the sport anymore without sever pain and risking my knee to get stiff permanently. Still loving the sport and dreaming about it.

I had my shoulder separated permanently by someone doing a sode tsuri komi goshi like makikomi- drove me straight to the mat with no chance of a fall. 25 years later I’ve had surgery to repair what they could but Im out of practice til it recovers. Be good to your partners judokas!

A failed Tani otoshi snapped my ACL 6 months into judo and ended my grappling for 8 months. At this point I've been recovering longer than I've trained thanks to one training partner not knowing how to do a throw during stegeko.

I truly love grappling, it's so painful that a moment of negligence cost me so much (thousands of dollars in medical bills and not being able to train with my friends)

Ironically, in bjj class, hiki comi gaeshi is one of the first throws we learn right after osoto as a white belt. Our bjj professor is also a judo black belt as well.  But he also advocates the same angle method as sensei, rolling with the opponents shoulder in the chest. I’ve been thrown scores of times with this throw without injury - so far.

I was terrified of brown belts, due to one of them nearly breaking my neck with a tomoe nage.

I had only done judo for a few months, but I was in great physical shape, and I made myself very difficult to throw (typical beginner stuff) - the brown belt got annoyed by my low center of gravity, so he attempted a tomoe nage. However, I was death-gripping, so he couldn't do it properly, and I landed on my neck.

I could feel something crunching, and I literally saw a black void, with exploding stars in my field of vision.

They're not only legal, their mastery is in fact required to attain your black belt, at least in Holland they are.

I think we should forget about the “this is dangerous”.   Now, I will agree a lot should be age appropriate.    Osotogari has ended more judokas participation than any other (I would bet).

Osoto maki is like my dojo's bread and butter

Seen two separated shoulders from soto makakomi.  One of them, I was tori, when I was a kid decades ago.  Had been very careful with it ever since.

I think plain old O Soto Gari is the throw most likely to result in concussion. It's almost impossible to do proper ukemi on and if someone underestimates the throwing force the back of their head gets slammed onto the mat real easily.

for me its not sumi gaeshi  ( like kawaisshi shows) its obitori gaeshi

4:02 Yapp, that side shoot got my friend's leg broken really bad by his brother

Yagura nage is found in most belt wrestling and grip wrestling styles around the world; everywhere from Iceland and Switzerland to Georgia and Mongolia.

I like the summary in the end where you show all 5 throws you mentioned throughout the video.

Just come back from my MRI scan and 100% torn ACL from Tani otoshi just how it happened in this video....

I think Tani-otoshi is the most dangerous one on this list, seen so many injuries to the knee from this, including snapped PCLs, ACLs, spiral fractures etc. Suprised to see the Georgian Sumi-Gaeshi on there, I would have expected the Georgian Obi-Tori-Gaeshi/Khabarelli given it has a huge risk of dumping uke on their head.

my bjj instructor received a neck injury from move 2 during a judo tournament. His body went numb and transported to hospital. As far as I know he fully recovered. I didn't see the move but my understanding is he was tired and let his posture suffer. He got bent over after going for something, then his vastly more experienced opponent spiked him, sounded like intentionally.

You hit a few of my serious judo injuries on the head here. IMO for the non elite judoka soto makikomi is definitely the worst, especially when performed by big guys. The whole lock the shoulder and just fall over thing is a recipe for disaster, but not just for the reason you said, I had my shoulder separate this way because a tori who was twice my weight under rotated so my locked shoulder hit the ground first with his weight on top. I have never personally seen an injury from what I think of as Tani-otoshi, but I have seen a lot of serious knee injuries from bigger guys doing yoko gake basically in the way you suggested is dangerous to the knee, the reason the gake is worse is that tori can fix the knee/leg in place more than in a true tani otoshi where the action should be more an otoshi and less of a gake (in theory).
At the elite level it seems to me that sode is the most dangerous objectively (although ura nage and some version of drop seoi often seem to drop uke on their head). I am sure there are more injuries form sode than reverse seoi nage.

4:28 that's how my knee got fucked up

In my 60s and still have judo in my blood.  What a great experience.  Earned my 2nd dan in my 40s.