19. Complications: O‐BCS of those compared to mastectomies.

Study	Intervention type	Wound infection	Flap/skin necrosis	Dehisence	Fat necrosis	Seroma	Skin	Haematoma	Needed surgery
Acea‐Nebril 2005	VD	2 (4%)	3 (6%)	‐	‐	3 (6%)	‐	4 (8%)	‐
Carter 2016	VD and VR	45 (4.8%)	‐	‐	‐	126 (13.4%)	‐	18 (1.9%)	‐
Mustonen 2004	VR	1 (8.3%)	1 (8.3%)	‐	‐	3 (25%)	‐	‐	‐
Ozmen 2020	VR	‐	‐	‐	‐	‐	3 (5.6%)	‐	5 (2%)
Peled 2014	VD	6 (16.2%)	‐	4 (10.8%)	‐	‐	‐	‐	1 (2.7%)
Potter 2020	VD	‐	‐	‐	‐	‐	‐	‐	8 (2.13%)
Tong 2016	VD	11 (8.4%)	0 (0%)	8 (6.1%)	5 (3.8%)	‐	18 (13.7%)	4 (3.1%)	3 (2.3%)

O‐BCS: oncoplastic breast‐conserving surgery
VD: volume displacement
VR: volume replacement