Table 2 Clinical and functional follow-up outcomes

Revision surgeries

2/20

0/32

0.0704

Infections

0/20

3/32

0.1646

Local recurrence

0/20

2/32

0.2629

Dislocations

2/20

0/32

0.0704

Subluxations

0/20

4/32

0.1037

Bone unions (12 months)

16/20

8/32

< 0.0001

Bone resorptions (12 months)

4/20

24/32

< 0.0001

VAS score

1.5 ± 0.8

2.3 ± 1.2

0.0112

Forward flexion

95 ± 5.6

55.6 ± 8.0

< 0.0001

Abduction (at the end of follow-up)

110 ± 10

25.5 ± 5.0

< 0.0001

External rotation

25 ± 4.5

5 ± 1.5

< 0.0001

Abduction (12 months)

100 ± 7.6

50.6 ± 6.0

< 0.0001

ASES score, mean ± SD (12 months)

78 ± 3.5

52 ± 5.6

< 0.0001