Comparison of the effect on bone healing process of different implants used in minimally invasive plate osteosynthesis: limited contact dynamic compression plate versus locking compression plate

Abstract

Minimally invasive plate osteosynthesis (MIPO) has been widely accepted because of its satisfactory clinical outcomes. However, the implant construct that works best for MIPO remains controversial. Different plate designs result in different influence mechanisms to blood flow. In this study, we created ulnar fractures in 42 beagle dogs and fixed the fractures using MIPO. The dogs were randomly divided into two groups and were fixed with a limited contact dynamic compression plate (LC-DCP) or a locking compression plate (LCP). Our study showed that with MIPO, there was no significant difference between the LCP and the LC-DCP in terms of fracture fixation, bone formation, or mineralization. Combined with the previous literature, we inferred that the healing process is affected by the quality of fracture reduction more than plate selection.

A mechanobiological approach to find the optimal thickness for the locking compression plate: Finite element investigations

“…Moreover, in all cases, the differentiation process was significantly accomplished within the first 8 weeks after operation, and the rate of tissue transformation was diminished afterwards. A stable state of tissue composition throughout callus after eight post-operative weeks, observed in this study, was in agreement with the results of an in - vivo histomorphometric analysis of the callus in a fractured tibia, 29 which was fixed by an 8-hole LCP with a similar screw configuration as of this study.…”

“…18 Callus index, which was defined as the ratio of oval diameter at the fracture site to the outer bone diameter, was set to be 1.1, 27 Figure 1(c). An 8-hole LCP with a length of 152 mm and width of 13.5 mm, was fixed at a 1 mm distance above the periosteum, 28 by means of six locking head, bi-cortical screws positioned at 123,678 configuration, 29 while two holes close to the fracture site were kept empty, Figure 1 (b) and (c). Diameter of screws was 4.5 mm and their length, depending on LCP thickness, was changed between 28 to 34 mm.…”

Osteosíntesis con placa mínimamente invasiva (OPMI) para fractura completa de tibia y peroné en canino (Canis lupus familiar): Pre - Planificación virtual

“…Por lo que concluyen la OPMI ofrece ventajas clínicas, mejor pronóstico que RAFI en perros con fracturas de diáfisis medial de radio. Por otro lado, el proceso de curación se verá afectado por la calidad de la reducción de la fractura más que por la selección de la placa [14][15][16] . Independientemente en otros casos la técnica utilizada OPMI en las fracturas diafisarias la cicatrización fueron en menos de 10 semanas 2,3,10 .…”

Proximal interphalangeal joint arthrodesis in the horse

“…Je grösser die Auflagefläche, desto mehr wird möglicherweise die Blutversorgung des Knochens beeinträchtigt, was für eine möglichst schnelle Überbrückung hinderlich ist (Wagner 2003). Ob dies in den vorliegenden Fällen eine Rolle gespielt hat, kann jedoch nur spekuliert werden, da der Einfluss des Plattentypus auf die Blutversorgung und Heilung kontrovers in der Literatur diskutiert wird (Xue et al 2016).…”