Nazareth Hospital, 2375 Woodward Street, Suite 102, Philadelphia, PA, 19115, USA.
Aesthetic Plast Surg. 2021 Oct;45(5):1991-1999. doi: 10.1007/s00266-021-02198-3. Epub 2021 Mar 12.
Research suggests that overfilling saline inflatable breast implants may decrease their deflation rates. To date, there has been no large-scale study comparing breast implants filled within vs. beyond the manufacturer's recommended fill volumes.
A retrospective comparative study was conducted for 4761 women who underwent aesthetic augmentation mammaplasty by the author. Patients were divided into two groups: Group 1 includes 2960 patients who had breast augmentation between 2002 and 2009 with implants filled within the manufacturer's recommended fill volumes. Group 2 includes 1801 patients who had breast augmentation between 2011 and 2018. Their implants were overfilled with an average volume between 42 and 50 cc, or 10-13%, respectively. All surgeries were performed with Mentor Style 1600 saline breast implants (smooth, round moderate profile) through an inframammary incision; implants were placed in the subpectoral (dual) plane. Also evaluated was the yearly increase in deflation rates.
Group I had 119 deflations, representing a deflation rate of 4.02%. Group 2 had 33 deflations, providing a deflation rate of 1.83%. The author found a protective effect in overfilling the device (p < 0.00001 and Z-score of 4.17). Fold failure was the major reason for deflation in both groups. The implants filled within the manufacturer's recommended volume had a yearly increase in deflation rate of 0.41%, not 1% as is commonly reported. The overfilled implants did not have a yearly increase in deflation rate.
Overfilling Mentor Style 1600 saline breast implants (smooth, round moderate profile) 10-13% significantly reduced the deflation rate.
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研究表明，过度填充盐水可膨胀乳房植入物可能会降低其排空率。迄今为止，还没有大规模的研究比较制造商建议填充量以内和以外的乳房植入物。
作者对 4761 名接受美容隆乳术的女性进行了回顾性比较研究。患者分为两组：第 1 组包括 2960 名患者，他们在 2002 年至 2009 年间进行了乳房植入物填充，填充量在制造商建议的填充量以内。第 2 组包括 1801 名患者，他们在 2011 年至 2018 年间进行了乳房植入物填充。他们的植入物平均填充了 42 至 50cc 的额外体积，即分别为 10-13%。所有手术均采用 Mentor Style 1600 盐水乳房植入物（光滑、圆形中高型）通过乳晕下切口进行；植入物放置在胸肌下（双平面）。还评估了排空率的年增长率。
第 1 组有 119 例排空，排空率为 4.02%。第 2 组有 33 例排空，排空率为 1.83%。作者发现过度填充设备具有保护作用（p<0.00001，Z 分数为 4.17）。折叠失败是两组中排空的主要原因。制造商建议的填充量以内的植入物排空率每年增加 0.41%，而不是通常报道的 1%。过度填充的植入物排空率没有每年增加。
过度填充 Mentor Style 1600 盐水可膨胀乳房植入物（光滑、圆形中高型）10-13%显著降低排空率。
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