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Table 1 Baseline characteristics of patients with AO/OTA 31-A1 and A2 intertrochanteric fractures

From: The remnant axial cortical length of the proximal femur in pertrochanteric fractures: a three-dimensional computed tomography study and its clinical implications

Parameters

AO/OTA fracture type

P value

Total (n = 80)

A1 (n = 21)

A2 (n = 59)

Age (years)

80.7 ± 5.8

79.6 ± 4.8

81.8 ± 5.7

0.132

Female, number (%)

32 (60)

8 (38)

24 (41)

0.836

Right, number (%)

41 (51.3)

13 (61.9)

28 (47.5)

0.255

RACL* (mm)

67.6 ± 18.1

88.8 ± 15.8

60.0 ± 11.9

0.006

RAC† (mm)

33.5 ± 6.7

36.9 ± 7.4

32.3 ± 6.1

 < 0.001

RPC† (mm)

13.9 ± 10.6

27.3 ± 7.8

9.2 ± 6.6

 < 0.001

RLC† (mm)

29.9 ± 7.1

36.9 ± 6.7

27.4 ± 5.4

 < 0.001

γ angle† (°)

33.9 ± 17.6

16.2 ± 13.1

40.3 ± 14.5

 < 0.001

LWT† (mm)

23.8 ± 7.2

32.1 ± 6.4

20.8 ± 4.6

 < 0.001

  1. *P < 0.01, †P < 0.001: Comparison between A1 and A2 fractures
  2. RACL Remnant axial cortical length, RAC Remnant anterior cortex, RPC Remnant posterior cortex, RLC, Remnant lateral cortex, LWT Lateral wall thickness
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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