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Table 2 Baseline data

From: Conversion from a failed proximal femoral nail anti-rotation to a cemented or uncemented total hip arthroplasty device: a retrospective review of 198 hips with previous intertrochanteric femur fractures

Variable

UTA (n = 98)

CTA (n = 100)

p-value

Gender, M/F

45/53

48/52

0.769

Age(y)

66.84 ± 4.72

66.73 ± 5.12

0.162

BMI (kg/m2)

26.11 ± 5.82

26.78 ± 6.26

0.241

BMD

−3.67 ± 0.62

−3.66 ± 0.73

0.317

Side, R/L

48/50

51/49

0.776

Symptomatic/asymptomatic patients prior to revision

56/42

60/40

0.683

Mechanism of injury, No. %

  

0.609

 Traffic

33 (33.7)

36 (36.0)

 

 Falling

53 (54.1)

56 (56.0)

 

 Direct impact

12 (12.2)

8 (8.0)

 

IFFs, AO/OTA, No. %

  

0.629

 31A1

16 (16.3)

19 (19.0)

 

 31A2

57 (58.2)

61 (61.0)

 

 31A3

25 (25.5)

20 (20.0)

 

Comorbidities, No. %

  

0.747

 Hypertension

36 (36.7)

33 (33.0)

 

 Diabetes mellitus

23 (23.5)

21 (21.0)

 

 Cerebrovascular accident

10 (10.2)

13 (13.0)

 

Reasons for conversion, n%

  

0.954

 Instability

23 (23.5)

25 (25.0)

 

 Mechanical failure

22 (22.4)

23 (23.0)

 

 Instability and mechanical failure

53 (54.1)

52 (52.0)

 

Interval from PFNA to revision (y)

  

0.841

 < 1

15 (15.3)

17 (17.0)

 

 1–2

53 (54.1)

56 (56.0)

 

 > 2

30 (30.6)

27 (27.0)

 

Follow-up (mos)

65.15 ± 4.40

65.26 ± 4.21

0.103

  1. PFNA Proximal femoral nail anti-rotations, UTA Uncemented total hip arthroplasty, CTA Cemented total hip arthroplasty, HHS Harris hip score, ASA American Society of Anesthesiologists, BMI Body mass index, BMD Bone mineral density