Biomechanics of Intramedullary Rods for Fracture Fixation
Ultimate Properties of Intramedullary Nails
Martens M. Frankel VH, Burstein AH
Injury 4: 18-24, 1973
Load-Deformation Comparisons
Permanent Deformation
Four-Point Bending
Deflection vs. Diameter Deformation
Stress Analysis of a Partially Slotted Intramedullary Nail
Beaupré GS, Schneider E, Perren SM
J. Orthop. Res. 2: 369-376, 1984
AO 13mm Femoral Nail
FEM of Standard
Nail
FEM of Cloverleaf
Nail
Loading Configurations
Validation Strain Gaging
Slot Tip Alternatives
FEM vs. Experiment
Influences of Some Design Parameters on the Biomechanics of the Unreamed
Tibial Intramedullary Nail
Henley MB, Meier M, Tencer AF
J. Orthop. Trauma 7: 311-319, 1993
Radiographic Appearance
Breaking Strength
Flexoral Stiffness
Bone Cross-Sectional Area
Radiographic Healing
Mechanical Characterization of Femoral Interlocking Intramedullary Nailing
Systems
Russell TA, Taylor JC, LaVelle DG, Beals NB, Brumfield DL, Durham AG
J. Ortho. Trauma 5: 332-340, 1991
A BC
A: AO
B: R-T
C: Mal-reduced Roddings
Anterior Impingement
Translation vs. Effective Diameter
Construct Stiffness
Effects of Locking Screw Orientation
Effects of Cortical Contact
The Effect of Implant Axial and Torsional Stiffness on Fracture Healing
Woodard PL, Self J, Calhoun J, Tencer AF, Evans EB
J. Orthop. Trauma 1: 331-340, 1998
Flexural Testing Fixture
Nail Cross-sections (Digitized)
Bending Stiffness
Closed
Open
St. Venant Torsional Constants
Strength of 13 mm nails
Screw Strength (3-point Bending)
} Theoretical
Bending stiffness from moment of inertia
Stiffness of 13mm nails
Torsional Load Uptake
Torisonal Stiffness (from moment of inertia)