Is there a way to get rid of lumps 10 years post lipo on thighs?

Liposuction lumps and bumps can almost always be improved with further treatments such as micro cannulas liposuction or fat grafting or just fine undermining the fibrous bands or adhesions. 

If the lumps are solitary raised areas, then an attempt at focal liposuction in these areas is worthwhile as they may represent residual fat. If you have indentations adjacent to the raised areas, those indents can be treated by fat injections often with good results but sometimes it is difficult to smoothen the surface. If it's not swelling but fat, and ten years after liposuction it is not swelling, then endermologie and Velashape won't help much.

These are very difficult to remove and may be reflective of loose skin which can only be improved via dermolipectomy (thigh lift) procedures. Discuss this with a plastic surgeon who is comfortable with these procedures. AT this point in time, I am not a strong believer in non-surgical interventions such as mesoltherapy ("fat melters") or radiofrequency,  non-invasive technologies (Thermage or Velasmooth or Alma)

COntour irregularities can develop from liposuction. It is difficult to say what you need in terms of correctionw ithout examining you. Sometimes it is as simple as doing more liposuction, sometimes it requires fat grafting to augment deficient areas.

Revision of lumps after Liposuction requires correction of the cause. The three causes are leaving fat that was not removed, removing too much fat, or loose skin that did not contract. Of course, you could also have a combination of more than one. Correction, therefore, requires either more liposuction, fat grafting, removal of the excess skin, or a combination. Discuss this with a Plastic Surgeon with significant experience with liposuction and fat grafting.