Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery
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J Craniomaxillofac Surg · Nov 2019
Observational StudyClinical significance of buccal branches of the facial nerve and their relationship with the emergence of Stensen's duct: An anatomical study on adult Taiwanese cadavers.
This observational study on adult Taiwanese cadavers focused mainly on the intersection of buccal branches of the facial nerve with Stensen's duct, using the emergence of Stensen's duct as the reference landmark. ⋯ The distribution of buccal branches was described using the emergence of Stensen's duct as a reference landmark. According to our observations, the relationship between the buccal branches and Stensen's duct was much more complicated than described in previous studies. This was the first study to investigate the complete distribution of buccal branches of the facial nerve emerging from the anterior of the parotid gland, and their relative locations and branching numbers.
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J Craniomaxillofac Surg · May 2019
Outcome analysis of molding helmet therapy using a classification for differentiation between plagiocephaly, brachycephaly and combination of both.
The incidence of positional head deformation has increased during the last decades. Helmet therapy has been proved to be a reliable method for the treatment of nonsynostotic skull deformities. Until today, a simple classification to differentiate between different head shapes has not been established. ⋯ III.
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J Craniomaxillofac Surg · Dec 2018
Feasibility of carbon-fiber-reinforced polymer fixation plates for treatment of atrophic mandibular fracture: A finite element method.
The objective of this study was to conduct a computer assessment of the biomechanical stability of locking fixation plates of different thicknesses, made of titanium alloy and carbon-fiber- reinforced polyetheretherkotone (CFR-PEEK) in Class III atrophic mandibular fractures. Class III atrophic mandibular models were constructed using three-dimensional finite element models. After simulation of fracture on the left side, plates with different thicknesses (1.0, 1.5, 2.0, and 2.5 mm) were adapted to the models and three locking screws on each side of the fracture were used for fixation. ⋯ Von Mises stress values for screws and plates were lower in models using CFR-PEEK plates. An increase in plate profile enhanced the load-sharing performance of the fixation systems, with rigid titanium alloy plates sharing the load among the screws more evenly. 1.0 mm, 1.5 mm, and 2.0 mm CFR-PEEK plates produced strain values of 2-10%, which promote proper healing via formation of callus in the fracture line. In terms of investigated biomechanical parameters, and with a Young's modulus similar to that of cortical bone, CFR-PEEK materials appear to be suitable for the treatment of atrophic mandibular fractures.
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The aims of this study were as follows: To determine the national incidence of facial fractures among infants, toddlers, and children; to evaluate the types of facial fractures; and to analyze common products/activities associated with the fractures. ⋯ The reported trends in the incidence by age group and types of fracture can assist physicians by serving as supplement for clinical history and examination when encountering this challenging patient population. Our findings highlight preventative opportunities, particularly in baby care items and beds for reducing facial fractures in infants. Similarly, preventative opportunities are highlighted in household items and furniture for lowering the incidence of facial fractures in toddlers and children. Our study also suggests ensuring safe handling of playground equipment and riding toys for the prevention of facial fractures in children.
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J Craniomaxillofac Surg · Jun 2018
Effect of head orthoses on skull deformities in positional plagiocephaly: Evaluation of a 3-dimensional approach.
The positional non-synostotic plagiocephaly represents a cranial asymmetry affecting all 3 dimensions. The aim of this study was to evaluate volumetric indices to assess the efficiency in improving non-synostotic cranial asymmetries in treatment with head orthoses. ⋯ The introduced parameters sufficiently reproduce the improvement of asymmetry during helmet therapy, following the trend of already established parameters. Asymmetry was significantly improved in the occiput region, and helmet therapy was highly effective in younger infants and in the early treatment period.