I am curious if we have a confusion in terms here. Surgeons sometimes use terms that are unclear to us layman. For example, when they say they are "separating", "dividing", or "releasing" something, that means that they are essentially cutting it in two, as opposed to spreading it. Since this is often done with a cautery (burning) device instead of a scalpel, the terms "separating", "dividing", or "releasing" are often used instead of "cutting". In the standard posterior approach, some of the smaller rotator muscles are separated/ divided / released in order to allow the femur to be dislocated. In all of the articles that I have read, and videos that I have watched of numerous surgeons, this separation/ division/ releasing means cutting the muscles or tendons free in some way, and then hopefully reattaching them after the joint has been resurfaced and reduced. I had always thought that this is the approach that Dr Pritchett has used for many years, and I would find it interesting if he has developed a posterior approach that did not involve separating /dividing/ releasing(cutting) any muscles or tendons.
If anyone has the opportunity, it would be interesting to confirm with Dr Pritchett or other surgeons that there is now a posterior approach that does not involve separating, dividing, or releasing any muscles or tendons.