The effect of preoperative different dexamethasone regimens on postoperative glycemic control in patients with type 2 diabetes mellitus undergoing total joint arthroplasty: a retrospective cohort study

Table 3 Postoperative blood glucose levels after THA and TKA

	THA				TKA
	Group A	Group B	Group C	P value	Group A	Group B	Group C	P value
FBG (mmol/L)
POD 0	7.3 ± 1.6	6.8 ± 1.4	7.3 ± 1.6	0.101	7.2 ± 1.6	7.4 ± 1.6	7.3 ± 1.4	0.270
POD 0 returning to ward immediately	10.2 ± 1.7	10.3 ± 1.7	11.0 ± 2.3	0.005*	10.5 ± 1.8	10.9 ± 1.7	10.9 ± 2.0	0.006*
POD 1	8.4 ± 2.0	8.4 ± 2.4	9.2 ± 2.6	< 0.011*	8.9 ± 2.3	9.2 ± 2.6	9.8 ± 2.6	0.001*
POD 2	8.1 ± 1.6	7.9 ± 1.6	7.9 ± 2.0	0.615	8.2 ± 1.6	8.5 ± 2.0	8.3 ± 1.8	0.300
POD 3	7.8 ± 1.6	7.4 ± 1.4	7.7 ± 1.6	0.172	7.7 ± 1.5	8.1 ± 1.8	8.1 ± 1.8	0.012*
During hospital stay	8.2 ± 1.4	7.9 ± 1.3	8.4 ± 1.6	0.085	8.3 ± 1.4	8.5 ± 1.6	8.6 ± 1.5	0.013*
Postoperative mean FBG (mmol/L)	8.6 ± 1.4	8.5 ± 1.4	9.0 ± 1.8	0.108	8.8 ± 1.5	9.2 ± 1.7	9.3 ± 1.6	0.004*
Postoperative maximum FBG (mmol/L)	10.4 ± 1.7	10.6 ± 2.1	11.3 ± 2.5	0.002*	10.8 ± 2.0	11.2 ± 2.0	11.4 ± 2.2	0.003*
Postoperative maximum FBG ≥ 11.1 mmol/L (%)	91 (32.7%)	18 (26.5%)	34 (41.5%)	0.141	178 (37.6%)	73 (44.5%)	70 (46.7%)	0.076

THA = total hip arthroplasty; TKA = total knee arthroplasty; DEX = dexamethasone; FBG = fasting blood glucose; POD = postoperative day. 11.1 mmol/L = 200 mg/dl
*Meant p < 0.05 and the values were marked in bold

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