Safety is relative

There is no specific definition of safety.All surgical procedures have known risks and side effects. Combining procedures can be relative safe but a surgeon would have to know exactly what is being done.Tummy tucks vary. Amount and extent of liposuction vary. Your healthy and physique is different from other patients.I would say that it is possible that doing the combinations of procedures you mention might be safe enough to contemplate doing simultaneously. But you have to measure this against the relative safety of separating the procedures and you must have your surgeon analyze what is specifically required. For example, liposuctioning 5000 ccs. from your back and flanks is very different than suctioning 500ccs and suctioning all over your back, flanks and abdomen is more risky that localizing it to smaller areas of these regions. Err on the side of safety and conservativism in these multiple procedures.