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Table 2 Categorizing of five models and their simulated results of seven parameters

From: Influence of the proximal screws of buttress plates on the stability of vertical femoral neck fractures: a finite element analysis

 

CS

Buttress

Parameters

PIIT

PIIT+4HI

PIIT+4HI-1

PIIT+6HI

PIIT+6HI-1

Stiffness (N/mm)

1511.0

1567.6 (+ 3.75%)

1525.8 (+ 0.98%)

1636.5 (+ 8.31%)

1580.1 (+4.57%)

MPS (MPa)

/

795.6

294.9

947.2

556.2

MCS (MPa)

336.3

313.2 (−6.87%)

335.9 (−0.12%)

304.3 (−9.52%)

335.1 (−0.36%)

MBS (MPa)

138.8

118.4 (−14.70%)

138.7 (−0.07%)

117.5 (−15.35%)

138.4 (−0.29%)

MIFD (mm)

1.262

1.219 (−3.41%)

1.251 (−0.87%)

1.169 (−7.37%)

1.209 (−4.2%)

MBD (mm)

1.342

1.294 (−3.58%)

1.329 (−0.97%)

1.240 (−7.60%)

1.284 (− 4.32%)

MID (mm)

7.784E−2

6.742E−2 (−13.39%)

7.777E− 2 (−0.09%)

6.626E−2 (−14.88%)

7.742E−2 (−0.54%)

  1. Abbreviations: CS Cannulated screw; MPS Maximal stress of plate and screws; MCS Maximal stress of cannulated screws; MBS Maximal stress of bone; MIFD Maximal displacement of internal fixation; MBD Maximal displacement of bone; MID Maximal relative displacement of interfragments. From the third row on, the values in brackets are the variation rates which were defined in the method
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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