from post #2
If your weak hand is immobilized it will be impossible to rack the slide one handed.
The Israelis have methods of racking pistols one handed, specifically because they carry with an empty chamber. There are a few of them, and they do work. The fastest one is racking it on the outside of your thigh/pantleg. It is inherently dangerous and therefore used for emergencies only, but it does work, and is actually quite fast when practiced [with safety being of the utmost concern]. There are a number of more complicated, but safer procedures as well for single handed operation.