No, she tore. I didn't see it myself. Expect it is fairly rare, though think some crazy US obs actually attempt to engineer this situation by applying traction without awaiting restitution/internal rotation of the shoulders in cases where shoulder dystocia is feared (big baby anxiety) see
http://observantmidwife.blogspot.com where she describes something like this (I'll try to find the exact post). My own understanding is that this is the very worst thing you can do (since you are unlikely to bring shoulders out laterally instead impacting them with traction under the pubis, but there you go...none so queer as folk.
Midwife and doula present both described shoulders delivered laterally with traction in all fours position after apparent shoulder dystocia (and both thought very strange). There was cervical trauma too, not sure if related.