Biomechanical analysis of posteromedial tibial plateau fracture fixation in fresh cadaveric bone.

Autor: Twinprai N; Trauma unit, Department of Orthopedics, Srinagarind Hospital, Faculty of Medicine, Khon Kaen University, Thailand., Twinprai P; Musculoskeletal Unit, Department of Radiology, Srinagarind Hospital, Faculty of Medicine, Khon Kaen University, Thailand. Electronic address: princh@kku.ac.th., Sripaduangkul S; Trauma unit, Department of Orthopedics, Srinagarind Hospital, Faculty of Medicine, Khon Kaen University, Thailand., Samrid R; Department of Anatomy, Faculty of Medicine, Khon Kaen University, Thailand., Nimpisut N; Trauma unit, Department of Orthopedics, Srinagarind Hospital, Faculty of Medicine, Khon Kaen University, Thailand., Apinyankul R; Trauma unit, Department of Orthopedics, Srinagarind Hospital, Faculty of Medicine, Khon Kaen University, Thailand., Laonapakul T; Department of Industrial Engineering, Faculty of Engineering, Khon Kaen University, Thailand., Chindaprasirt P; Sustainable Infrastructure Research and Development Center, Department of Civil Engineering, Faculty of Engineering, Khon Kaen University, Thailand.
Jazyk: angličtina
Zdroj: Injury [Injury] 2024 Mar; Vol. 55 (3), pp. 111316. Date of Electronic Publication: 2024 Jan 08.
DOI: 10.1016/j.injury.2024.111316
Abstrakt: This study aims to compare the mechanical strength of three different posterior-based internal fixation methods for posteromedial tibial plateau fractures. The study utilized 12 tibial plateaus harvested from fresh-frozen cadavers, and the posteromedial fracture fragments were created. The bones were then randomly assigned to one of three fixation methods: two posteroanterior lag screws (LS) size 4.0 mm, posterior buttress plate using a 3.5 mm small dynamic compression plate (DCP), or posterior buttress plate using a 3.5 mm T-shaped plate (TP). Biomechanical testing was performed by applying vertical compression force to the center of the posteromedial fracture fragment until the load to failure (displacement ≥ 3 mm) was reached, and displacement of the fragment was measured using a motion sensor. The data exhibited normal distribution, and one-way analysis of variance (ANOVA) was used to determine the load to failure, followed by Fisher post hoc Least-Significant Difference (LSD) to correct for multiple comparisons. The statistical analysis demonstrated significantly higher mean load to failure values in the T-shaped plate group compared to both the small dynamic compression plate group and the lag screw group (p < 0.05). However, after conducting further post hoc analysis, the observed significant differences were solely between the LS and TP groups (p = 0.021). These findings suggest that the T-shaped plate represents the most effective method for internally fixing posteromedial tibial plateau fractures.
Competing Interests: Declaration of competing interest We, Nattaphon Twinprai, MD, Prin Twinprai, MD, Suwitcha Sripaduangkul, MD, Rarinthorn Samrid, Nakarin Nimpisut, MD, Rit Apinyankul, MD, Teerawat Laonapakul, Prinya Chindaprasirt(,) affiliated with Khon Kaen Universitiy, hereby declare that I have no conflicts of interest to disclose in relation to the research and manuscript titled " Biomechanical Analysis of Posteromedial Tibial Plateau Fracture Fixation in Fresh Cadaveric Bone." I certify that I do not have any financial or non-financial conflicts of interest that could be perceived as influencing the research, its design, conduct, reporting, or interpretation.
(Copyright © 2024 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
Databáze: MEDLINE
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