A HD close-up photo would have been very helpful. But, generally speaking, when it comes to indented scars, including those following prior surgery or trauma, subcision can be used to elevate and smooth them, and this can be followed by the use of professionally performed Dermastamp microneedling to improve any residual surface texture and tone irregularities and help the treated area to blend better with the surrounding normal skin. Surgical revision in areas of tension and movement run the risk for the subsequent development of stretch scars and even tram track stitch marks. And the marketing hype for expensive "bells and whilstles" gizmos, like fraxel lasers and RF devices, lags woefully behind the hard science to promote their use. So "buyer beware" would be good advice when evaluating claims for the use of these devices in this case. Make sure to consult an experienced, board certified cosmetic dermatologist. Best of luck.