I recently performed a direct anterior hip replacement. This is a new approach to hip replacement that preserves the muscles. It usually allows very rapid return of function and patients do not have to worry about dislocation. They can bend over right after surgery without a problem.
Anatomy of the Hip Joint
By Smith & Nephew (Smith & Nephew) [FAL], via Wikimedia Commons
The direct anterior approach uses a small (4") incision in front of the hip. This approach is known for a pain free recovery.