Fat Transfer to Lower Leg? (photo)

due to spina pevida, i was born with undeveloped muscle in lower right leg. due to high skin tonicity, calf implant was found to be not suitable while fat transfer is the only option. i have done 2 fat transfers in the last year and i hardly see any difference 3-4 months after the operations. in the first operation - ~150cc entered while in the second one ~120cc. is there any option that skin tonicity is so powerfull that i wont see any difference also after third operation?