Background: Oncoplastic breast surgery (OBS) has
emerged as more advanced surgical approaches which combine
the principles of both the oncological and plastic surgeries to
achieve those advanced results and to expand the tumour size
indication in front of the conservative management.
Methods: From July 2016 to March 2019, 200 patients
presented with UOQ primary breast cancer including multifocal
and post neoadjuvant cases with predicted excision volume
(PEV) less than 35% were operated and enrolled in this
prospective study. Aesthetic outcomes were objectively evaluated
6 months after surgery by the semi-automated Breast
Cancer Conservative Treatment (BCCT) core software.
Results: Total aesthetic results according to the objective
BCCT core assessment were excellent in 41.5% (83 cases),
good in 29.5% (59 cases), fair in 19.5% (39 cases), and poor
in 9.5% (19 cases). More than 90% of the patients with EEV
less than 10% have achieved excellent aesthetic results; EEV
from 10 to 15% has achieved more than 60% good results;
EEV from 15 to 20% has achieved around 50% fair results
which have been approached the 70% in the 20 to 25% group;
more than 40% poor results were noticed in the 25 to 30%
EEV which were raised up to 75% in the 30 to 35% EEV.
Conclusion: Excision volume ratio has become one of
the main determinants of the aesthetic results; its preoperative
value can refer to the most suitable oncoplastic surgical
technique for each patient, expect the forthcoming discrepancy
and the necessity for contralateral symmetrization. Current
study has revealed the necessity of discrepancy corrective
surgery or performing volume replacement reconstruction
with the EEV more than 20% in the UOQ and from 15 to 20%
in the fair results according to the patients' preference.