Restylane to Fill Indented Area on Thigh After Liposuction?

Consider fat injections as this may act as a graft and some cells may live long-term in the indentation creating a lifting that lasts much longer than Restylane. The fat injections may need to be done several times as only a percentage of the fat may live. Some fat injections never respond so realize that there is no guarantee. You might need the equivalent of a couple or few syringes of Restylane and if you just place a large "ball" of this product underneath the indentation, you may not get a good result. It would also be costly.

WHY have Restylane and not a Fat Transfer? I would rarely use a filler that lasts only months vs fat which could be more lasting.

Most of the fillers can be used to fill out any depressed areas after liposuction. The question is more to do with the amount needed and the cost of the product. If the defect is large, then a lot of Restylane can be very costly. One of the options would be using Sculptra or Fat injections.
Regards