Wasn’t a similar torture described in the movie NORTHWEST PASSAGE (1940)? I read the book by Kenneth Roberts fifty eight years ago and don’t remember if it was mentioned in there or not.
The cutting of the ribs bit, and other stuff is mentioned in this clip -
http://www.tcm.com/mediaroom/video/316485/Northwest-Passage-Movie-Clip-Abenaki-Tomahawks.html