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Table 1 Characteristics of clinical failures

From: Single approach to double-channel core decompression and bone grafting with structural bone support for treating osteonecrosis of the femoral head in different stages

t

Sex

Age (years)

BMI

Left/right

Risk factors

Pre/last Harris

Pre/last ARCO

Survival time (months)

1

Male

26

23.4

Left

Corticosteroids

65.7/36.4

IIIA/IV

14

2

Male

37

22.0

Right

Corticosteroids

83.7/30.7

IIIA/IV

15

3

Male

30

25.6

Right

Corticosteroids

69/67

IIIA/IIIC

12

4

Male

18

20.0

Right

Trauma

75.7/71.7

IIIC/IV

6