I found it took twelve months before I could shoot without discomfort after shoulder and elbow surgery. But we are not all the same and some people could start shooting sooner without problems and others a little longer. Though the best thing I found was to leave my light Brit side by sides in their cases, and used a far heavier over and under with a rubber recoil pad. I was really surprised how much a heavier gun reduced the felt recoil though I do miss the light guns I have grown old with.
I hope things go well for you after your surgery.
