If you have a pocket gun, like a J-frame, you can carry that in you weak side front pocket. I think drawing from the pocket will be easier to learn quickly & to do quickly.
It's an easy motion to do with your weak hand. So, all you really have to do is practice shooting with your weak hand, & I'm assuming you'll be shooting with one hand, too. At least for awhile.
Now, do you have a gun that'll fit in your pocket?
Oh yeah, hope the surgery is successful & you recover quickly.
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"Use human means as though divine ones didn't exist, and divine means as though there were no human ones." Baltasar Gracian
Integrated Close Combat
NRA Member
Glock 19, Kahr P45, Kel-Tec P-32, S&W 442, & Dan Wesson 14-2