Table 2 Comparison of intraoperative conditions between two groups

Operation time (min)

33.11 ± 3.65

33.69 ± 3.30

t =  − 1.333

Hospital stays (days)

6.64 ± 3.02

7.20 ± 3.35

t = 1.406

Cost (dollar)

3697 ± 461

5255 ± 262

t = 33.600

Volume of cement(ml)

6.19 ± 1.27

6.42 ± 1.39

t = 1.399

Blood loss(ml)

5.82 ± 1.86

5.90 ± 1.92

t = 0.320

Cement leakage

35/122

23/134

χ2 = 4.840