What Causes Rectus Abdominis Muscle Atrophy?

Question : Dr. Tayal--I am the patient who since having a T12 Vertebrectomy Nov. 2012, anterior incision (2 RIBS removed) that extended posterior around to my spine, concurrently developed the problem with swelling, pain & a peculiar feeling of movement & hardening upon exercise of the area beneath the incision. Having only regained most of the feeling from the surgery this year, the numbness allowed me to exercise with no real pain 2013 & 2014. However ,the area grew during this time, shifted around & became hard at times. Anyway, in my last question to you, I told you that I had been referred to a Plastic Surgeon by the surgeon who did the last CT, showing advanced atrophy of the left rectus abdominis, likely deformation atrophy. This dx came after seeing five surgeons, who based their dx on the results of CT Scans & never physically saw or examined the area. Over these 2 1/2 years, my abdominal girth has expanded to 50", I have difficulty with balance, can't do ADLs, or even get down my steps to outside. Housework for about an hour causes excruciating back pain. Better off being numb. I lost my balance last week while reaching, staggered backwards, fell on XXXXXXX & fx hand & wrist. Had surgery & in cast. I guess, most of this you already know from my last question. The Plastic Surgeon, University of TN Medical Group, is able to fix the problem, but only when I lose weight so has referred me for bariatric surgerý. Having been inactive for so long has caused 60-70 lb gain plus the problem area probably accounts for most. After all this, my concern is the bariatric surgery probably gastric sleeve. I have never had a weight problem before. I don't snack or crave food & usually eat only one meal a day. I would like your input on this surgery for me. The Plastic Surgeon plans to do the body contouring surgery after fixing the main muscle problem. I have to say, that sounds pretty good. All is covered by Medicare & Supplemental as it was caused by the original incision & has definitely caused a deformity. Still, I worry about having part of my stomach removed. Your thoughts, please??!!