Did the leaves (new growth) start off looking normal and then shrivel up, or did they emerge from the meristems stunted and curly from the get-go? If it's the latter, look into herbicide damage (specifically growth regulators like 2,4-D).
This spring, every single shoot on every one of my 40 plants looked like the plants in your pics, many worse. They were tiny, thick, irregularly-shaped and had wavy mid veins. (I can look for some pics if it would help.) After doing some "research" (looked online), I was sure I had a broad mite infestation. But I sent some samples to a university entomologist and he said there were no mites and that it was likely herbicide damage. Sure enough, I just let the plants ride it out and they all grew out of it.
Growth regulator herbicides tend localize themselves to areas of rapid growth (meristems) in the plants, so trimming off the affected might help them recover, too.
Good luck!