If poorly used, it can cause injury to the knee.
I guess the same could be said for any throw, except this one had more cases of misuse than most.
I've also heard it was used to DELIBERATELY hurt opponents in a few comps.
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Budokan Judo Club Australia
Life's journey is not to arrive at the grave safely in a well-preserved body,
but rather to skid in sideways, totally worn out shouting " ... holy crap!! .... what a ride!!"