Can paraplegics have a tummy tuck (abdominoplasty surgery) to improve the atrophy of stomach muscles?

A tummy tuck will remove excess fat and skin, as well as repair abdominal wall laxity.  It will not be able to reverse muscle atrophy.  If you have been given medical clearance it should be fine for you to have the surgery.

Hello.
Great question. A medical clearance from your specialist is needed to undergo a cosmetic procedure. An abdominoplasty procedure is not intended to improve muscle atrophy.

Dear Gscepi,
It is hard to tell for sure without an examination. You will need to get a clearance from your doctor. If you are considering a surgery, I would suggest you to consult a board-certified plastic surgeon. Only after a thorough examination you will get more information and recommendations.
Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery

You raise two important issues here. 
Being paraplegic is not a contraindication to an abdominoplasty. However, the risks versus benefits needs to be considered and you would need a full medical work-up for this. 
Regarding the muscle atrophy, surgery will not improve the 'atrophy' but may tighted the gapping between the rectus muscles. The atrophy would need assessment to see there is any other pathology and whether this requires repair with a sutures only, mesh or another technique. 
I hope this has been helpful. Good luck. Nakul Patel

A tummy tuck can help tighten the muscles which may have become weak or thin over time, however it does not reverse the atrophy of the muscle itself. For patients with a bulge due to severe thinning of the abdominal wall and muscles, they may be better served with mesh reinforcement if the bulge is becoming uncomfortable or a medical problem. Hope this helps!Johnson C. Lee, MD
Board-Certified Plastic Surgeon