ABS ePoster Library

Does the 45:55 measurement of the ‘ideal breast’ have a potential role as an objective measure of aesthetic outcome after breast conserving therapy?
Association of Breast Surgery ePoster Library. O'Connell R. 05/15/17; 166227; P120
Rachel O'Connell
Rachel O'Connell
Login now to access Regular content available to all registered users.
Abstract
Rate & Comment (0)
Introduction
The so called 'ideal breast' has been based on an analysis of breast profiles of a series of 100 topless models. Key parameters were identified as: an upper–to–lower pole ratio of 45:55 percent (slightly fuller lower than upper pole), and upward pointing nipple (20°angle).
The primary aim was to investigate these parameters in women who have undergone breast conserving therapy (BCT). The secondary aims were to investigate whether the difference in 45:55 ratio between the treated and untreated breast correlated with patient satisfaction or panel assessment.
Methods
Ethical approval was obtained. Women who had unilateral BCT 1-6 years ago were recruited. Participants underwent medical photography and completed the BREAST-Q. Panel assessment used the Harvard 4-point score.
45:55 and nipple measurements were undertaken using Photoshop. Spearman's correlation coefficients were calculated to measure associations.
Results
180 women participated. Mean age was 60years (SD=11.1). Time from surgery was 35.5months (SD=17.8). Median 'Satisfaction with breasts' was 68 (IQR=55-80). Median panel score was 3 (IQR=2-4). The median ratios were 76:24 and 73.6:26.4 for the untreated and treated sides respectively. The median nipple angles -0.6 and +3.3 respectively. Median difference between the untreated and treated breast ratio was 4.9 (2.1-10.1). There was a negative correlation between the difference in ratio with 'Satisfaction with breasts' (-0.219, p=0.003) and panel assessment (-0.363, p<0.001).
Conclusion
The upper-to-lower pole ratio for the BCT population is very different from the models used in the 'ideal breasts' study. However the significant correlations indicate that these measurements may be useful in assessing the aesthetic outcome after surgery.
Introduction
The so called 'ideal breast' has been based on an analysis of breast profiles of a series of 100 topless models. Key parameters were identified as: an upper–to–lower pole ratio of 45:55 percent (slightly fuller lower than upper pole), and upward pointing nipple (20°angle).
The primary aim was to investigate these parameters in women who have undergone breast conserving therapy (BCT). The secondary aims were to investigate whether the difference in 45:55 ratio between the treated and untreated breast correlated with patient satisfaction or panel assessment.
Methods
Ethical approval was obtained. Women who had unilateral BCT 1-6 years ago were recruited. Participants underwent medical photography and completed the BREAST-Q. Panel assessment used the Harvard 4-point score.
45:55 and nipple measurements were undertaken using Photoshop. Spearman's correlation coefficients were calculated to measure associations.
Results
180 women participated. Mean age was 60years (SD=11.1). Time from surgery was 35.5months (SD=17.8). Median 'Satisfaction with breasts' was 68 (IQR=55-80). Median panel score was 3 (IQR=2-4). The median ratios were 76:24 and 73.6:26.4 for the untreated and treated sides respectively. The median nipple angles -0.6 and +3.3 respectively. Median difference between the untreated and treated breast ratio was 4.9 (2.1-10.1). There was a negative correlation between the difference in ratio with 'Satisfaction with breasts' (-0.219, p=0.003) and panel assessment (-0.363, p<0.001).
Conclusion
The upper-to-lower pole ratio for the BCT population is very different from the models used in the 'ideal breasts' study. However the significant correlations indicate that these measurements may be useful in assessing the aesthetic outcome after surgery.
Code of conduct/disclaimer available in General Terms & Conditions

By clicking “Accept Terms & all Cookies” or by continuing to browse, you agree to the storing of third-party cookies on your device to enhance your user experience and agree to the user terms and conditions of this learning management system (LMS).

Cookie Settings
Accept Terms & all Cookies