ReviewChinese journal of traumatology = Zhonghua chuang shang za zhi2026
Biomechanical performance of proximal tibia fracture plates: A review.
Review in Chinese journal of traumatology = Zhonghua chuang shang za zhi, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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3 authors.
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Abstract
purposeProximal fractures of the tibia (i.e., shin bone) are often treated using proximal tibia fracture plates (PTFPs) that are not always biomechanically optimal. This is a review of biomechanical papers that studied the effect of modifying PTFP plate and screw variables.
methodsPubMed, Scopus, and Web of Science databases were searched for English-language papers published before February 2024 using the terms "biomechanics" plus "proximal or plateau" plus "tibia" plus "fracture or "plate." Eligibility criteria were applied: (1) biomechanical studies only; (2) optimization studies that systematically permutated plate or screw variables; (3) plate-and-screw fixation only; (4) intra-articular or extra-articular fractures. The papers were examined for implant variables such as plate geometry, plate material, screw number, etc., while papers were also examined for outcome metrics like interfragmentary motion, plate stress, overall stiffness, etc.
resultsThe 52 eligible PTFP papers considered the biomechanical effect of plate geometry, material, hole type, number, and position, while screw variables included geometry, number, and angle. Outcome metrics were interfragmentary motion (0-22.53 mm or 0°-60.1°), bone stress (1-1170 MPa), plate stress (3-586 MPa), and screw stress (3-1613 MPa), bone stress under the plate (2-11 MPa), number of loading cycles to failure (11,500-1,000,000), overall stiffness (22-24,869 N/mm or 0.4-63.8 Nm/degree), and failure strength (259-14,387 N). Reviewed papers showed that a PTFP's biomechanical stability could be maximized by using 1 or 2 plates that were contoured, larger, locking, metal, and/or placed on the largest surface of the bone fragment(s), while head, kickstand, and/or shaft screws should be longer, thicker, solid, metal, and/or angled. But more future work could be done on the biomechanical effect of plate design (e.g., alternative materials), bone quality (e.g., normal vs. osteoporotic), loading mode (i.e., axial, bending, torsion), etc.
conclusionsPTFPs should have their plate and screw variables optimized to provide the best biomechanical performance and clinical outcomes, but more work is required to determine the optimal conditions. Engineers and surgeons may find this review beneficial for designing, analyzing, or utilizing PTFPs.
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