Board Thread:Versus Debates/@comment-28731007-20160627160729/@comment-734582-20160627211939

Tsunade is a medical ninja. She would figure out Kimimaro's jutsu faster than Kimimaro the reverse. She IS a medical expert after all.

Secondly, while Gaara at this point was strong, he wasn't as strong as his Part II or 4th war self. Kimimaro was definitely a Kage level shinobi.

Thirdly, Tsunade applies immense strength to a small, focused area unlike Gaara's overall pressure. She can definitely break his bones. She doesn't have to worry about Kimimaro reforming them, as the target would mostly be his vital organs (which he can only strengthen so much before, you know, they stop performing vital functions).