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Forschungsdatenbank PMU-SQQUID

Biomechanical Comparison of 2 Double Plating Methods in a Coronal Fracture Model of Bicondylar Tibial Plateau Fractures.
Samsami, S; Pätzold, R; Neuy, T; Greinwald, M; Müller, PE; Chevalier, Y; Püschel, K; Augat, P;
J Orthop Trauma. 2022; 36(4):e129-e135
Originalarbeiten (Zeitschrift)

PMU-Autor/inn/en

Augat Peter
Greinwald Markus
Pätzold Robert

Abstract

OBJECTIVES
Because management of bicondylar tibial plateau fractures are complicated even for expert surgeons, with using a coronal fracture model, we aimed to compare 2 kinds of double locked plating techniques that consisted of the lateral locking plate and the medial locking plate inserted medial anteriorly (MA-ly) or medial posteriorly (MP-ly).
Fourteen fresh-frozen tibias stabilized with the MA or MP methods were allocated into 2 groups with similar bone mineral density values. Implanted samples were tested under incremental fatigue loading conditions using a customized load applicator. An optical motion tracking system was used to assess relative displacements and rotations of fracture fragments during loading. Static and dynamic global stiffness, failure load, failure cycles, as well as movements of fracture fragments were measured.
There were no significant differences between the 2 fixation methods regarding global stiffness, failure load, or failure cycles (P = 0.67-0.98, depending on the parameter). The kinematic evaluations, however, revealed that different positions of the medial locking plates altered the directions of movements for the medial-anterior or medial-posterior fracture segments.
The mechanical stability of tibia-implant constructs fixed with the double plating methods was not remarkably affected by the location of the medial locking plate. Depending on clinical conditions and surgeons preferences, bicondylar tibial plateau fractures can be managed with either MA or MP methods.


Useful keywords (using NLM MeSH Indexing)

Biomechanical Phenomena

Bone Plates

Fracture Fixation, Internal/methods

Humans

Tibia

Tibial Fractures*/diagnostic imaging

Tibial Fractures*/surgery


Find related publications in this database (Keywords)

bicondylar tibial plateau fracture
posteromedial fracture fragment
coronal fracture model
double plating osteosynthesis
mechanical test
interfragmentary movement