Table 1 demographic data and baseline characteristics of all patients with trochanteric fractures.

From: New tip-apex distance and calcar-referenced tip-apex distance cut-offs may be the best predictors for cut-out risk after intramedullary fixation of proximal femur fractures

 

CUT-OUT NO (n = 585)

CUT-OUT YES (n = 19)

TOTAL (n = 604)

p value

Age, mean (IQR, Q1to Q3)

88 [82 93]

89 [83 95]

88 [82 93]

0.4658

Side (n, %)

0.737

right

285 (48.7)

10 (52.6)

295 (48.8)

left

300 (51.3)

9 (47.4)

309 (51.2)

AO/OTA Classification (n, %)

A1

334 (57.1)

7 (36.8)

341 (56.5)

0.08

A2

228 (39)

12 (63.2)

240 (39.7)

0.034

A3

23 (3.9)

0 (0)

23 (3.8)

0.999

Intramedullary Device (n, %)

0.058

Gamma 3

302 (51.6)

14 (73.7)

316 (52.3)

Trigen Intertan

283 (48.4)

5 (26.3)

288 (47.7)

Distal Locking (n, %)

Static

491 (83.9)

15 (78.9)

506 (83.8)

0.058

Dynamic

92 (15.7)

4 (21.1)

96 (15.9)

0.523

Unlocked

2 (0.4)

0 (0)

2 (0.3)

0.999

Centre-column-diaphyseal (CCD) angles (n, %)

120°

63 (10.8)

1 (5.3)

64 (10.6)

0.709

125°

477 (81.7)

17 (89.5)

494 (81.9)

0.550

130°

44 (7.5)

1 (5.3)

45 (7.5)

0.712

Other complications (n, %)

0.431

Yes

569 (97.6)

18 (94.7)

587 (97.5)

No

14 (2.4)

1 (5.3)

15 (2.5)

Modified Cleveland Sistem (MSC) (n, %)

5

299 (51.1)

3 (15.8)

302 (50)

0.002

2–4-6–8

195 (33.3)

9 (47.4)

204 (33.8)

0.222

1–3-7–9

91 (15.6)

7 (36.8)

98 (16.2)

0.023

Quality of reduction (n, %)

0.061

good

370 (63.2)

8 (42.1)

378 (62.6)

acceptable, poor

215 (36.8)

11 (57.9)

226 (37.4)

Post-operative weight-bearing (n, %)

0.004

yes

469 (80.2)

10 (52.6)

479 (79.3)

no

116 (19.8)

9 (47.4)

125 (20.7)

TAD median (IQR, Q1 to Q3) (mm)

22.16 [16.66 28.6]

38.72 [30.59 46.23]

22.58 [17 28.97]

 < 0.001

CalTAD median (IQR, Q1to Q3) (mm)

26.19 [21.77 31.19]

39.34 [36.76 46.87]

26.42 [21.93 31.5]

 < 0.001

  1. IQR, interquartile range; AO/OTA Classification, AO Foundation and Orthopaedic Trauma Association classification system; TAD, tip-apex distance; CalTAD, calcar-referenced tip-apex distance.