Table 3.

Laboratory data during total knee arthroplasty.

		Control (N = 36)	RIPC (N = 36)	P
CPK
	Preop	78 ± 27	67 ± 20	0.054
	Post 1 h	88 ± 31	85 ± 24	0.617
	Post 24 h	143 (94-244)	188 (134-271)	0.130
AST
	Preop	24 (21-29)	22 (20-25)	0.061
	Post 1 h	25 (20-30)	24 (21-27)	0.513
	Post 24 h	21 (19-24)	21 (19-25)	0.883
Cr
	Preop	0.8 ± 0.2	0.7 ± 0.1	0.059
	Post 1 h	0.7 (0.6-0.8)	0.7 (0.6-0.8)	0.447
	Post 24 h	0.7 (0.6-1.0)	0.7 (0.6-0.8)	0.166

Values are expressed as the mean ± standard deviation or median (25%-75%).

Abbreviations: Control, control group; RIPC, remote ischaemic preconditioning group; CPK, creatinine phosphokinase; LDH, lactate dehydrogenase; AST, aspartate aminotransferase; Cr, creatinine; Preop, before anaesthesia induction; Post 1 h, postoperative 1 h; Post 24 h, postoperative 24 h.