Skip to main content

Table 1 Univariate analyses of factors associated with postoperative complications requiring revision surgery

From: Risk factor analysis for postoperative complications requiring revision surgery after transtrochanteric rotational osteotomy for osteonecrosis of the femoral head

 

Complications (n = 11)

No complications (n = 109)

p value

Sex

 Male

8

83

0.8007

 Female

3

26

 

Age (years), mean (range)

41.4 (25–53)

39.6 (15–60)

0.6500

Body mass index (kg/m2)

23.8 (17.6–29.1)

22.9 (15.6–34.8)

0.2767

Surgical side

 Right

6

54

0.7517

 Left

5

55

 

Contralateral hip

 ON (+)

9

62

0.1088

 ON (−)

2

47

 

Activity level

 High

1

17

0.7274

 Moderate

4

45

 

 Low

6

47

 

Previous alcohol intake

 Yes

10

68

0.0587

 No

1

41

 

Previous alcohol abuse

 Yes

8

20

0.0001*

 No

3

89

 

Previous corticosteroid use

 Yes

5

61

0.5043

 No

6

48

 

Perioperative corticosteroid use

 Yes

2

36

0.3131

 No

9

73

 

Smoking

 Yes

8

70

0.6130

 No

3

39

 

Type

 C-1

3

38

0.6130

 C-2

8

71

 

Stage

 3A

7

80

0.7192

 3B

4

28

 

 4

0

1

 

Preoperative JOA score

58.40 (44–73)

57.22 (25–84)

0.5894

Final follow-up JOA score

79.10 (70–86)

85.56 (52–100)

0.0169*

  1. ON osteonecrosis; JOA Japanese Orthopaedic Association
  2. *p < 0.05 considered significant