German orthopedics lived up to its reputation.
Gao Guang definitely hadn't undergone surgery because there really was no need for it, first of all, he had suffered an internal fracture, and the location of the break was quite favorable, roughly ten centimeters above the knee, indeed no need to insert metal pins for fixation.
There wasn't a need for metal pins, but external fixation was necessary. However, with Gao Guang's capabilities, and mainly Sara's care for him, the cost of orthopedic materials was of no concern to him.
Gao Guang used a 3D printed splint for stabilizing the fractured bone, to be precise, a set of 3D printed fixation braces that completely enveloped his left leg. The greatest benefit of this contraption was that there was no need for a plaster cast; it was lightweight and breathable, and other than the inability to move the broken leg, there was nothing else too uncomfortable.