Rhytidoplasty: SMAS Imbrication Vector Comparison

Facial plast Surg 2016; 32: 599-606
DOI: 10.1055/s-0036-1597145

To determine if there are aesthetic differences in patients who have undergone a SMAS lifting with predominantly oblique-horizontal vectors versus predominantly oblique-vertical vectors. To determine if there are aesthetic differences in the results of the neck using sutures placed in specific areas of the platysmal muscle versus randomly placed sutures for platysmal plication to the mastoid. Comparative, retrospective, blind, and randomized study. Evaluation of preoperative and postoperative photographs of 54 patients who underwent predominantly oblique-horizontal SMAS lifting versus 53 patients who underwent predominantly oblique-vertical traction of the SMAS flap, reviewed by three external, unbiased facial plastic surgeons in a blind study. A 7-point scale was used to grade the improvement of the face and the neck. In the face, SMAS lifting with predominantly oblique-vertical vectors used during the procedure offer statistically better results (p ≤ 0.001) in comparison to predominantly oblique-horizontal vectors in the aesthetical improvement of the malar eminence, melolabial fold and jowls. In the neck, both techniques offer excellent results, but the sutures used for platysmal plication in specific areas offer no statistical differences in aesthetical results from those sutures that are randomly placed in the platysmal muscle. In our study of 107 patients, SMAS lifting using predominantly oblique-vertical vectors seem to have better results than using predominantly oblique-horizontal vectors. For the neck, we do not find statistical differences between randomly placed sutures for platysmal plication versus sutures placed in specific areas of the muscle.
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