Bo's injury was different in that the head of his femur (the ball) that fits in the acetabulum (the socket) was bruised so badly that it lost blood supply and slowly dissolved. In the radiograph below, the femoral head on your left is moth eaten (avascular necrosis of the femoral head). The right is normal.
My brother is a physician at St. Vincents Hospital where Tua was taken. I'll find out the details in a day or 2. I'm certain they tried to manually reduce the dislocation soon after he arrived because 1) cartilage damage to the femoral head increases with time, 2) manual reduction becomes more difficult as time passes since the muscles begin to tighten up and 3) a thick firm blood clot begins to fill the socket (acetabulum) which can prevent the head from seating properly. If it's not reduced quickly, surgery is required. Most likely, his dislocation is the posterior type.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4821229/