Possible to Do Muscle Repair Without a Tummy Tuck?

The safest way to perform muscle plication tightening is through an open approach (Tummy tuck incision).   This allows the surgeon to place sutures around the muscle safely and securely, without injury to the bowel.  If you have excess skin, then it is best to remove it at time of the muscle repair.   This is the most optimal approach to the "mommy lift" around the belly, which is usually a true abdominoplasty.    You can probably work wtih your plastic surgeon and insurance company to get the optimal approach by separating the time/procedures so that a "cosmetic" portion can be charged separately from the "diastasis repair."

Please specify what you mean by good results.  IF you have excellent skin tone with great elasticity but have a diastasis, then repair may produce an excellent outcome. IF however, you have numerous stretch marks then tightening the muscle alone could acutally make your stomach look worse.

It is extremely uncommon for a woman to have significant Rectus muscle separation (Diastasis) without ALSO having skin excess. The forces inside the belly that push forward and split the muscles cause stretching, stretch marks and skin excess as well.

If the muscle repair is NOT accompanied by a taking in and removal of all excess skin the result would be a flat tummy with a lot of visible rolls of loose hanging skin. Not an attractive picture.