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Table 2 Patient characteristics at baseline

From: Long-term survival of hybrid total hip replacement for prior failed proximal femoral nail antirotation: a retrospective study with a median 10-year follow-up

Variable

Hybrid THR (n = 118)

Age (years), no.%

 75 ≤ , < 80

90(76.3)

 80 ≤ 

28(23.7)

Sex, no. %

 Female

60(50.8)

 Male

58(49.2)

BMI (kg/m2)

 Median (range)

21.9 (18.3–33.6)

BMD (proximal femur) (g/cm3)

 Median (range)

3.8(2.9–4.6)

Side, no.%

 Left

55(46.6)

 Right

63(53.4)

Reason of primary surgery, no.%

 AO/OTA 31A1.1

27(22.9)

 AO/OTA 31A1.2

68(57.6)

 AO/OTA 31A1.3

23(19.5)

Mechanism of injury, no.%

 Traffic

16(13.6)

 Falling

72(61.0)

 Tamp

30(25.4)

Time to THR conversion (months), no.%

  < 6

89(75.4)

  ≥ 6

29(24.6)

Type of cement fixation, no.%

 Antibiotic-loaded cement

67(56.8)

 Cement without antibiotic

51(43.2)

CCI at revision, no. %

 Low

31(26.3)

 Medium

69(58.5)

 High

18(15.2)

Indications for conversion to hybrid THR, no. %

 Instability

75(63.6)

 Mechanical failure

31(26.3)

 Both

12(10.1)

ASA physical status, no.%

 1

21(17.8)

 2

68(57.6)

 3

29(24.6)

mHHS prior to conversion

 Median (range)

55.0(46.7–68.9)

  1. THR Total hip replacement, BMI Body mass index, BMD Bone mineral density, CCI Charlson comorbidity index, ASA American Society of Anesthesiologists; mHHS: modified Harris Hip Score