look at the skull where is zygomatic bone and where maxilla
overlooked fracture must be cut often including maxilla, because the weakest point of the malar bone (zygoma + maxilla) is the maxillary bone -line fracture cross the infraorbital canal (nerve) and zygomatic arch + orbital rim + orbital floor + lateral wall of the orbit
zygomatic bone (complex) reposition can be done near the commissure + the rest like in the fracture
generally you can try to get some fight you will get clean cut if you break malar bone
and from that point ask surgeon for a new position... but it's no so easy
breaking malar bone even wont give you so much swelling as surgery
but you risking complication with the eye if the displacemenet will be too big
I have to add you that during fracture, UNCONTROLLED fracture I lost only 20% of nerve function, but during surgery 100%
fracture crossed the nerve
I give this funny example to anyone who can avoid surgery..... if you can than avoid... really fractures has less complications often than big surgery