Table 5.

Causes of return to the operating theatre.

Study	No. of Flaps	No. Flap Take Back	% Flap Take Back	Causes of Take Back
Martin J. Carney et al. (2020) [37]	128	6	4.69	Arterial occlusion: 1 Venous thrombosis: 4 Others (not mentioned): 1
Hollie A. Power et al. (2022) [13]	423	39	9.22	Arterial occlusion: 25 Venous thrombosis: 37 Hematoma: 2
Z-Hye Lee et al. (2019) [16]	165	21	12.70	Not mentioned
John T. Stranix et al. (2019) [41]	358	68	18.99	Arterial occlusion: 17 Venous thrombosis: 27
John T. Stranix et al. (2018) [30]	481	71	14.80	Arterial occlusion: 22 Venous thrombosis: 35 Hematoma: 7 Others (not mentioned): 7
Nicholas Moellhoff et al. (2022) [33]	393	69	17.55	Arterial occlusion: 13 Venous thrombosis: 33 Hematoma: 23
Z-Hye Lee et al. (2020) [35]	393	61	15.50	Not mentioned
Cara Black et al. (2020) [36]	115	6	5.20	Not mentioned
John T Stranix et al. (2020) [38]	373	29	7.80	Not mentioned
Harrison Theile et al. (2022) [32]	234	22	9.40	Not mentioned
Paul I. Heidekrueger et al. (2019) [40]	100	19	19.00	Arterial occlusion: 4 Venous thrombosis: 9 Hematoma: 6
John T. Stranix et al. (2018) [42]	361	45	12.40	Arterial occlusion: 14 Venous thrombosis: 26 Others (not mentioned): 5
Hani I. Naga et al. (2021) [34]	173	14	8.09	Not mentioned
John T. Stranix et al. (2018) [43]	362	44	12.20	Not mentioned
Z-Hye Lee et al. (2019) [39]	410	61	14.88	Not mentioned
Hao Liu et al. (2023) [45]	244	35	14.34	Not mentioned
Joani M. Christensen et al. (2024) [44]	420	37	8.80	Arterial occlusion: 13 Venous thrombosis: 22
Total	5133	647	13.79	Arterial occlusion: 109 (30.88%) Venous thrombosis: 193 (54.68%) Hematoma: 38 (10.76%) Others (not mentioned): 13 (3.68%)