Related Experiment Video
Updated: Apr 11, 2026
Application of Design Aspects in Uniaxial Loading Machine Development
Published on: September 19, 2018
Comparison of double locking plate constructs with single non-locking plate constructs in single cycle to failure in
K D Hutcheson, J R Butler1, S E Elder
1Ryan Butler, DVM, MS, DACVS-SA, College of Veterinary Medicine, Mississippi State University, 240 Wise Center Drive, Mississippi State, MS 39762, United States, Phone: +1 662 325 1438,
Objective:
To evaluate the biomechanical properties of single 3.5 mm broad dynamic compression plate (DCP) and double 3.5 mm String-of-Pearls (SOP) plate constructs in single-cycle bending and torsion. We hypothesized that the double SOP construct would outperform the broad DCP in both bending and torsional testing.
Methods:
Broad DCP plates and double 3.5 mm SOP plates were secured to a previously validated bone model in an effort to simulate bridging osteosynthesis. Constructs were tested in both four-point bending and torsional testing.
Results:
The double SOP constructs had significantly greater bending stiffness, bending strength, bending structural stiffness, and torsional stiffness when compared to the broad DCP constructs. The single broad DCP constructs had significantly higher yield torque and yield angles during torsional testing.
Clinical Relevance:
Although the in vitro mechanical performance of the double SOP construct was significantly greater than the single broad DCP constructs under bending loads, the actual differences were small. Various patient, fracture, and implant factors must be considered when choosing an appropriate implant for fracture fixation.
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