Biomechanical Variability and Usability of a Novel Customizable Fracture Fixation Technique

Area of Science:

• Orthopedic surgery
• Biomaterials engineering
• Surgical innovation

Background:

• Novel osteosynthesis techniques are crucial for improving fracture fixation.
• The Bonevolent™ AdhFix platform offers in situ customization for bone repair.
• Assessing surgeon variability is key to clinical adoption.

Purpose of the Study:

• To evaluate the biomechanical variability and usability of the AdhFix osteosynthesis platform.
• To determine inter- and intra-surgeon consistency in applying the AdhFix technique.
• To assess the learning curve and clinical applicability of AdhFix.

Main Methods:

• Six surgeons performed ten osteosyntheses on synthetic bone models using AdhFix.
• Samples underwent 4-point bending tests to evaluate biomechanical properties.
• Maximum bending moment (BM), bending stiffness (BS), and cross-sectional area (CSA) were measured.

Main Results:

• Consistent construct appearance and suitability for testing were observed.
• Mean BM was 2.64 ± 0.57 Nm and mean BS was 4.35 ± 0.44 Nm/mm.
• Significant inter-surgeon variability in BM and BS was noted, with limited intra-surgeon improvement.

Conclusions:

• The AdhFix platform demonstrates consistent biomechanical stability, suggesting ease of learning and clinical viability.
• Observed variability is unlikely to impact clinical outcomes.
• Further clinical studies are warranted to confirm efficacy in patient populations.