I recently completed an animation showing the procedure for repairing rectus diastis, or stretching of the abdomen post pregnancy. Above is a shortened version. All the models were bespoke, as needed to create highly specific animations of each procedure.
We initially created the abdominal muscle layers.
Moving on to show the expansion of the abdomen during pregnancy. Subsequently following birth, how abdomen can become stretched, especially the fascia of the linea alba.
We then show the procedures for abdominal repair and hernia repair, initially showing a sequence of how the skin is elevated to allow access to the abdomen. Followed by tightening of the linea alba and removal of skin.
Also included was a sequence showing possible hernia and tears to the abdomen and how they can be repaired.
The animation was created in 3DS Max using Vray Cloud and put together in After Effects.