Good evening Cindi, nice you are asking all the questions. The approach your surgeon is using is the traditional approach, other same as I had successfully 5 times.
Here is how my trusted surgeon explains it. It gives the best view of the entire operative field, so any anomalies can be seen. There are simple, inexpensive positioning tools that are used to minimize the impact of pelvic ti.t on the first am position.

He also told me that everyone's legs are two different lengths, and unless it is problematic already, the goal is to keep them like they are.

Finally, he says that, contrary to what you might think, even though recovery in ideal situations is faster with the anterior approach, the complication rate is actually higher - especially risk of bad alignment.

So, my friend, you have done WAY more than your due diligence as a patient. Now it's time to put your trust in the surgeon and his team.

How about some relaxation breathing every morning and night to help you get through this?
Sue