Bilateral pericapsular end nerve blocks for steroid-induced avascular necrosis following COVID-19 infection requiring bilateral total hip replacement

Table 1 Distribution of sex in this study

Number of patients	Female, n (%)	Male, n (%)	Age in yr, mean ± SD
17	8 (47.1)	9 (52.9)	32.647 ± 1.618

Table 2 Visual Analog Score

VAS	mean ± SD	Mean difference	95%CI	P value
Mean VAS preoperative	6.412 ± 0.870	4.67	4.0457-5.2483	< 0.0011
Mean VAS at 12 h	1.765 ± 0.752	1.59	1.0721-2.1042	< 0.0012
Mean VAS at 24 h	3.353 ± 1.169	3.06	2.2165-3.9011	< 0.0013

¹Compared with mean Visual Analog Score (VAS) at 12 h;

²Compared with mean VAS at 24 h;

³Compared with mean VAS preoperative.

VAS: Visual Analog Score.