Table 2.

Mean age, gender distribution, flap types, flap indications, complications and flap failure rate reported in the studies

Study	Mean age	Gender	Flap types	Trauma/malignancy/ infection	Flap complications	Flap failure rate
Parker et al. 20128	58	17M, 12F	Radial forearm, fibula, LD, groin, scapular	26 malignancy, 3 benign	Arterial thromboses 2, venous thromboses 3	13.8% (4)
Murphy et al. 20139	68	1M	ALT	Infection	Nil	nil
Kolbenschlag et al. 201410	50.2	108M, 73F	ALT, LD, DIEP, parascapular, gracilis, fibula, lateral arm, S-GAP	108 trauma, 45 malignancy, 12 infection, 9 burns, 7 chronic ulcers	28 thromboses, 15 venous, 6 arterial, 7 arterial and venous	7.7% (14)
Wikner et al. 201511	61.8	20M, 15F	Radial, fibula, ALT, scapular, ulnar	27 malignancy, 15 chronic skin ulcers	7 bleeding events, 5 thrombotic events	8.6% (3)
Zavlin et al. 201812	48.5	2F	DIEP	Abdominal breast reconstruction	Nil	Nil
Zavlin et al. 201813	48.2	100F	DIEP, SIEA	Abdominal breast reconstruction	1 arterial thrombosis, 2 venous thromboses, 1.7% bleeding, 4.7% wound infection	1.2% (2)
Ekin et al. 201914	49.3	40M, 37F	DIEP, fibula, ALT, radial forearm, LD	Not stated (elective free flaps)	5.2% partial necrosis, 6.5% thromboses (5), 10.4% hematoma, 7.8% wound dehiscence, (1.3%) seroma	3.9% (3)
Vanags et al. 20207	40.4	90M, 13F	Scapular, parascapular, ALT, LD, Fibula	Traumatic injuries	16 thromboses within first 24 hours	Not reported