King Nina-Marie, Lovric Vedran, Parr William C H, Walsh W R, Moradi Pouria
Randwick, New South Wales, Australia.
From Prince of Wales Hospital; and the Surgical and Orthopaedic Research Laboratories, Prince of Wales Clinical School, University of New South Wales.
Plast Reconstr Surg. 2017 May;139(5):1084-1089. doi: 10.1097/PRS.0000000000003247.
Breast augmentation surgery poses many challenges, and meeting the patient's expectations is one of the most important. Previous reports equate 100 cc to a one-cup-size increase; however, no studies have confirmed this between commercially available bras. The aim of this study was to identify the volume increase between cup sizes across different brands and the relationship with implant selection.
Five bra cup sizes from three different companies were analyzed for their volume capacity. Three methods were used to calculate the volume of the bras: (1) linear measurements; (2) volume measurement by means of water displacement; and (3) volume calculation after three-dimensional reconstruction of serial radiographic data (computed tomography). The clinical arm consisted of 79 patients who underwent breast augmentation surgery from February 1, 2014, to June 30, 2016. Answers from a short questionnaire in combination with the implant volume were analyzed.
Across all three brands, the interval volume increase varied between sizes, but not all were above 100 cc. There was some variation in the volume capacity of the same cup size among the different brands. The average incremental increase in bra cup size across all three brands in the laboratory arm was 135 cc. The mean volume increase per cup size was 138.23 cc in the clinical arm.
This article confirms that there is no standardization within the bra manufacturing industry. On the basis of this study, patients should be advised that 130 to 150 cc equates to a one-cup-size increase. Bras with narrower band widths need 130 cc and wider band widths require 150 cc to increase one cup size.
隆胸手术面临诸多挑战，满足患者期望是其中最重要的一点。以往报告将100立方厘米等同于罩杯尺寸增加一个码；然而，尚无研究在市售胸罩之间证实这一点。本研究的目的是确定不同品牌胸罩罩杯尺寸之间的容量增加以及与植入物选择的关系。
分析了来自三家不同公司的五种胸罩罩杯尺寸的容量。使用三种方法计算胸罩的容量：（1）线性测量；（2）通过排水法测量容量；（3）对连续放射学数据（计算机断层扫描）进行三维重建后计算容量。临床组包括2014年2月1日至2016年6月30日期间接受隆胸手术的79例患者。结合植入物体积对一份简短问卷的答案进行了分析。
在所有三个品牌中，不同尺寸之间的容量增加间隔各不相同，但并非所有增加量都超过100立方厘米。不同品牌中相同罩杯尺寸的容量存在一些差异。实验室组中所有三个品牌胸罩罩杯尺寸的平均增量增加为135立方厘米。临床组中每个罩杯尺寸的平均容量增加为138.23立方厘米。
本文证实胸罩制造业内不存在标准化。基于本研究，应建议患者130至150立方厘米等同于罩杯尺寸增加一个码。带宽较窄的胸罩需要130立方厘米，带宽较宽的胸罩需要150立方厘米才能增加一个罩杯尺寸。
