Injury
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Currently available volar locking plates for the treatment of distal radius fractures incorporate at least two distal screw rows for fixation of the metaphyseal fragment and have a variable-angle locking mechanism which allows placement of the screws in various directions There is, however no evidence that these plates translate into better outcomes or have superior biomechanical properties to first generation plates, which had a single distal screw row and fixed-angle locking. The aim of our biomechanical study was to compare fixed-angle single-row plates with variable-angle multi-row plates to clarify the optimal number of locking screws. ⋯ The results of our study indicate that two distal screw rows do not add to construct rigidity and resistance against loss of reduction. Well conducted clinical studies based on the findings of biomechanical studies are necessary to determine the optimal number of screws necessary to achieve reproducibly good results in the treatment of distal radius fractures.
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Due to the complex anatomy of the clavicle, percutaneous plating with indirect reduction for comminuted midshaft fracture of the clavicle is challenging. The aim of this series was to report on a novel technique of nail-assisted percutaneous plating and to evaluate the radiographic and clinical outcomes in comminuted midshaft fractures of the clavicle. ⋯ Minimally invasive percutaneous plating for comminuted midshaft fractures of the clavicle, combining the advantages of elastic intramedullary nailing and percutaneous plating, may be a good option.
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Comparative Study
Complications and radiographic outcome of children's both-bone diaphyseal forearm fractures after invasive and non-invasive treatment.
The incidence of paediatric forearm fractures and their invasive operative treatment is increasing. Evidence supporting increased interest in internal fixation of forearm fractures has been controversial. We studied radiographic outcome and complications of both-bone diaphyseal middle-third forearm fractures according to the type of treatment. The purpose of the study was to determine if there is an advantage in invasive treatment over non-invasive treatment that supports the increasing trend towards invasive surgery. ⋯ We found that the complication rate of diaphyseal forearm fractures was twice as common after non-invasive than after invasive treatment. The need of re-reduction after non-invasive treatment was remarkable. Nevertheless, bone healing was equally good despite the treatment. We conclude that intramedullary fixation of both-bone forearm fractures is a good mode of primary treatment of mild and severe middle-third diaphyseal both-bone forearm fractures.
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A potent mesenchymal stem cell (MSC) population was recently isolated from the Wharton's jelly of human umbilical cord (UC). The aim of the current experiments was to determine the potential of human UC-derived MSC (UC-MSC) in cartilage healing. ⋯ Collagen hydrogel can provide an appropriate 3-D environment for the chondrogenesis of UC-MSCs. UC-MSCs embedded in biocompatible scaffold may have great potential for cartilage engineering.