These are pictures of Rex as he appeared the day after the incident at the vets office.

The following are pix of Rex a week after. A lot of healing had happened by that time. Several weeks later he was back to normal.

One conclusion I had to this whole injury was this:

In the same way that it’s said that gravel isn’t a good idea in a turtle tank because of possible impaction (compaction, whatever), styrofoam tank backgrounds are also not a good idea, especially if filter tubes are setup right next to them because a turtle can climb them, get stuck, and hurt themselves.

If you want to see the original thread of this ordeal, you can see it here.