liposuction results gone one year after despite weight loss - what could have caused this?

When someone gains weight they don't develop new fat cells but instead their existing fat cells increase in size. It could be that during your initial liposuction technique enough fat cells were leftover that your weight gain allowed them to hypertrophy (grow) limiting your overall result. Exercise, diet and, eventually(if needed), revision liposuction can improve your overall result.

Patients who lack quality liposuction results long-term generally fall in one of the three categories. The first is individuals who have gained weight since the procedure. this includes people that weight fluctuations with increased weight and lost weight since this will cause increased skin laxity. The second category is people who were not good candidate for the procedure in the first place. this is very common for lower extremity liposuction especially the outer thigh especially if it involves the back half of the outer thigh. Lower extremity Liposuction rarely delivers the resort patient had hoped for.
The last reason is that the procedure was not done sufficiently.
All three of these could be good explanations for why you like to see good results. it could also be a combination of those options.
To even begin to make an assessment we need to see proper before and after pictures.
We also need to know your exact weight at the date of surgery and your current weight.
Follow up with your provider who did the procedure and discuss your concerns with him or her.
If you want a proper second opinion consultation and scheduled that as an in person consultation coming prepared by bringing with you all before and after pictures and a copy of your operative report. These are available from your surgeons office if you request them.
Best,
Mats Hagstrom MD