Strut rod bushing replacement

Looking through the old posts and threads it looks like the LCA has to be removed to get the strut rod out. It looks like some guys are removing the LCA back at the pivot and leaving the steering knuckle and everything else attached?

Is this possible or am I misreading some old posts? Obviously the torsion bar would have to be backed out but what else is involved in this way of doing it or maybe I'm just reading this wrong.