Working out after elbow replacement surgery?

In March of 2015 I dislocated my elbow, shattered the radial head which also dislocated as a result from shattering and tore the lateral ulnar collateral ligament bundles. I first got reconstructive surgery to repair the ligaments and the radial head which failed, resulting in a total radial head replacement in November of 2015. I have since been medically cleared by my surgeon but am no longer allowed to lift heavy weights. I've lost a considerable amount of weight (I'm 5'11 and dropped down to 152 lbs.)

My question is have any of you gone through extensive surgeries or anything similar and have resumed working out? Any advise would be appreciated!
Working out after elbow replacement surgery?
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