Well, yes, but in the end the cats I've seen with problems are either walking around with floppy toes, so basically stuck out since they flopped forward on each step, and/or had abnormal nail growth (very common side effect) causing very thick, long nails that hung out all the time based on length.
So they were tougher to cut, plus the people would just forget to do it, and you have the same slight increase in biting behavior from cats that still wanted to protect themselves with decreased swipe skills. So either way, the cats end up walking around with long toenails that grab the carpet and they cannot control toe tips to free them, but can still feel the pain of the broken nail or broken toe.
I will say, I mainly saw cats who had problems, not success stories because I worked with a guy that repaired stuff like this, so my population sample is definitely biased. He would not do them because he said he only saw problems. He preferred declaws and said either way, that's what was gonna happen anyway... but I don't know how biased his population was throughout his career before he formed that opinion.
And at the cat rescue, they took the policy of no declaws, no tendonectomies, no nothing.
Maybe someone else can answer this, but I thought tendonectomies were not recommended by the AVMA? I might be misremembering from the PAW Project stuff.