Table 1 Baseline characteristics of patients according to the study group

Age (years)

81.4 ± 10.4 (54–99)

85.3 ± 9.7 (62–96)

0.1606

Sex (male/female)

17 (23.0%)/57 (77.0%)

1 (8.3%)/11 (91.7%)

0.2475

Waiting time (days)

5.0 ± 3.6 (1–17)

4.4 ± 3.3 (1–12)

0.5339

Intraoperative blood loss (g)

21.0 ± 14.2 (0–100)

17.9 ± 9.9 (5–40)

0.5756

Duration of follow-up (m)

13.0 ± 11.0 (6–48)

9.0 ± 6.2 (6–26)

0.1826

Stage I: 8 (10.8%)

Stage I: 0 (0%)

0.0008^a

Stage II: 44 (59.5%)

Stage II: 1 (8.3%)

Stage III: 18 (24.3%)

Stage III: 9 (75.0%)

Stage IV: 4 (5.4%)

Stage IV: 2 (16.7%)

 AP view

168.0 ± 6.2

164.5 ± 8.6

0.168

 Lateral view

173.4 ± 5.3

169.7 ± 10.2

0.159

 Gait alone

31(41.9%)

4(33.3%)

0.4917

 With aid

18(24.3%)

2(16.7%)

 With helper/walker

21(28.4%)

4(33.3%)

 Wheel chair

4(5.4%)

2(16.7%)

 Gait alone

5(6.8%)

0(0%)

0.0493^a

 With aid

33(44.6%)

1(8.3%)

 With helper/walker

18(24.3%)

5(41.7%)

 Wheel chair

18(24.3%)

6(50.0%)