Why do I have sore/tender thighs and hardness 7 months post-op?

Somewhere in the range of 50% of fat grafts injected in the time of fat transfer, will die in the course of 8-12 months after surgery. Most will die due to lack of new blood supply and undergo what is know as aseptic fat necrosis (death of tissue without infection). Clinically, this condition presents as a hard, painful mass, that in time will soften, open and drain or simply resorb. Very likely, that is what is happening in your case. Consultation with your surgeon will help. Good luck.

Dear lisann48,
I understand your concern. However, without a proper assessment, it would be difficult to determine what went wrong. It is best that you visit your plastic surgeon for further assessment or ask for a second opinion. Only after a thorough examination, you can get proper recommendations and advice.
Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery

Sounds like fat necrosis effect? Best to obtain a sub cutaneous scan to rule out this dx. Also seek in person second opinion examination with experienced boarded PS doing BBLs. Might try external ultrasound therapy.