I am not sure about the answer to your question, but I had a similar thing happen to me yesterday. My BTA split and the baby wandered of. I tried to reach in and grab it but it was anchored harder then I thought so I tore the foot.
I decided to leave in rather then try and rip it more.
Today it has wandered into a crevice and still looks somewhat enflated and with good colours, so I think as long as its not loosing colours or has its mouth open or starts to wither apart inside the tank, it will heal.
After all the are capable of splitting in half. :)