I am going to chime in once again. Not every case is appropriate for the anterior approach. I needed two hips in my 50's - I am very small (one of the components used was pediatric) had extensive damage on both the femoral heads and acetabulae, and a possibly misaligned femur. The very experienced ortho surgeon said he could deal with one of these issues with the anterior approach, but not all four. When I had revision several years later, the second ortho, who has done thousands of hips and revisions, agreed that I needed a posterior approach (he does about 50% of each.)

In medicine, we can love our results, but need to be careful about insisting there is a one-size-fits-all method for any procedure. One need only look at the incredible variation in body types to understand this. When you add the unseen - existing damage, bone issues, etc, it makes it even more imperative that the surgeon choose the correct procedure for each patient - and have the humility to refer onward any person whose needs are outside their skill set.
Just another point of view - 18 years later I am still up and doing fine. I wish the rest of the body was doing as well as the hips.
Sue