I had a case as a junior resident similar to this one. It was a high-energy mechanism in a 22 y.o., resulting in ipsilateral fractures of the acetabulum at the posterior wall, femoral neck (displaced), and distal femur that required recon of the articular block. The acetabular fracture frx likely reulted from a dislocation-relocation mechanism, given that this pattern presented in a high-energy mechanism with these associated fractures.
We managed this as an emergent case due to the displaced femoral neck frx in a 22 yo, and took him to the OR immediately after clearance. This was a great case: despite the displaced femoral neck frx posing the more urgent threat in this case (AVN), the femoral neck fracture can't be reduced because the floating fracture won't permit any distal traction that you apply to result in an aligned femoral neck. The reduction, however, can be performed after ex-fixing the distal fracture. As a side note, the pt's extensor mechanism was also disrupted by the trauma and thereafter repaired.
Not sure if it is in the literature, but a great case worth presenting in ms format is you can't find it via lit search. Good luck!
PS: Check your pm later this evening.