The 16th Department, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 33 Badachu Road, Shijingshan District, Beijing, 100144, China.
Aesthetic Plast Surg. 2020 Jun;44(3):750-763. doi: 10.1007/s00266-020-01654-w. Epub 2020 Feb 27.
We aim to measure the zygomatic width and protrusion changes in hard tissue after reduction malarplasty and then calculate facial proportion changes and analyze the relationship between facial proportion changes and patients' satisfaction.
We retrospectively reviewed our database and selected 36 eligible patients who underwent isolated reduction malarplasty in our department from March 2015 to July 2018. The preoperative and postoperative facial width and protrusion, as well as head height, in hard tissue were measured using ProPlan software. Patients' satisfaction was evaluated by questionnaire. The correlations between the facial proportion changes and patients' satisfaction were analyzed using Spearman correlation analysis.
The preoperative and postoperative midface widths were 135.87 ± 4.09 mm and 129.06 ± 4.95 mm. The relative zygomatic protrusion was reduced by 3.29 ± 1.54 mm in the left and 2.88 ± 1.73 mm in the right after surgery. The ratio of the midface width to lower face width changed from 1.43 ± 0.05 to 1.36 ± 0.06 after surgery. And the ratio of the head height to midface width changed from 1.53 ± 0.05 to 1.61 ± 0.05 after surgery. The ratios were indeed close to the ideal ratios we presumed (4:3 and 1.618). Moreover, patients' total and morphology satisfaction were both significantly higher with the postoperative ratio of the midface width to lower face width closer to 4:3 (R = - 0.732, P < 0.001; R = - 0.906, P < 0.001, respectively). But only morphology satisfaction was higher with the ratio of the head height to midface width closer to 1.618 (R = - 0.404, P = 0.014) and the ratio of the postoperative midface to lower face width decreased (R = - 0.434, P = 0.008).
We found patients' morphology satisfaction was higher with the proportion of the postoperative midface to lower face width decreased. What's more, the proximity degree between the postoperative facial proportion and the ideal facial proportions we presumed was significantly correlated with patients' high satisfaction. Therefore, 4:3 and 1.618 may be the ideal postoperative facial ratios for the patients who underwent reduction malarplasty.
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测量颧骨宽度和突出度在颧骨缩小整形术后的硬组织变化，并计算面部比例的变化，分析面部比例变化与患者满意度的关系。
回顾性分析我科 2015 年 3 月至 2018 年 7 月收治的 36 例单纯颧骨缩小整形术患者的临床资料，应用 ProPlan 软件分别测量术前、术后硬组织的面宽、面突度和头高，采用问卷调查评估患者的满意度。采用 Spearman 相关分析评估面部比例变化与患者满意度的相关性。
术前、术后面中部宽度分别为 135.87±4.09mm 和 129.06±4.95mm，左侧和右侧颧骨相对突出度分别减少 3.29±1.54mm 和 2.88±1.73mm。术后面下部宽度与面中部宽度的比值由术前的 1.43±0.05 变为 1.36±0.06，头高与面中部宽度的比值由术前的 1.53±0.05 变为 1.61±0.05，均接近我们假设的理想比值（4:3 和 1.618）。此外，当术后面下部宽度与面中部宽度的比值更接近 4:3 时，患者的总体满意度和形态满意度均显著更高（R=-0.732，P<0.001；R=-0.906，P<0.001）。当头高与面中部宽度的比值更接近 1.618 时（R=-0.404，P=0.014）和术后面下部宽度与面中部宽度的比值减小（R=-0.434，P=0.008）时，形态满意度更高。
我们发现患者的形态满意度与术后面下部宽度与面中部宽度的比值降低有关。此外，术后面部比例与我们假设的理想面部比例的接近程度与患者的高度满意度显著相关。因此，4:3 和 1.618 可能是颧骨缩小整形术患者的理想术后面部比例。
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