The effects of a tourniquet used in total knee arthroplasty: a meta-analysis

Table 2 Study characteristic

Study	Sample size		Total size	Gender M/F ratio		Mean age (years)		BMI (kg/m²)		Drain	Tourniquet duration	Anticoagulation
	T	NT		T	NT	T	NT	T	NT		Tourniquet duration
Tai[21]	36	36	72	9/27	8/28	72.1	71.5	28.6	27.9	N	Part	None
Ledin[22]	25	23	48	10/15	9/14	70.0	71.0	29.0	28.0	Y	Overall	Heparin
Zhang[23]	30	30	60	8/22	11/19	72.0	71.0	25.0	26.0	Y	Overall	Heparin
Li[24]	40	40	80	11:29	3/13	71.0	70.0	27.3	26.8	N	Part	Heparin
Kageyama[25]	11	11	22	2/9	2/9	73	76.0	NS	NS	NS	NS	NS
Matziolis[26]	10	10	20	2/8	3/7	72.4	76.6	28.3	29.5	NS	NS	NS
Aglietti[27]	10	10	20	3/7	4/6	70.0	68.0	27.9	27.3	Y	Part	NS
Tetro[5]	33	30	63	15/18	11/19	69.8	69.8	NS	NS	Y	Part	Coumarins
Clarke[28]	20	10	30	NS	NS	NS	NS	NS	NS	Y	NS	NS
Wauke[29]	19	18	37	0/19	0/18	63.2	61.4	NS	NS	NS	NS	Heparin
Vandenbussche[30]	40	40	80	9/31	16/24	72.5	68.5	NS	NS	Y	Overall	Heparin
Wakankar[31]	37	40	77	11/26	14/26	72.5	71.8	NS	NS	Y	NS	Warfarin
Abdel-Salam[32]	40	40	80	17/23	15/25	72.0	74.0	NS	NS	Y	Overall	Heparin

T TKA with a tourniquet group, NT TKA without a tourniquet group, N no drainage system was used in TKA, Y drainage system was used in TKA, Part tourniquet was not inflated during the entire operation, Overall tourniquet was inflated during the entire operation, NS not stated.

ISSN: 1749-799X