Finite element analysis of different titanium miniplates: Evaluation of three-dimensional designs applied on condylar neck fractures

Liokatis, Paris; Tzortzinis, Georgios; Gerasimidis, Simos; Smolka, Wenko

doi:10.1016/j.jormas.2021.06.011

Cited by 6 publications

(3 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although there are multiple finite element (FE) studies [14][15][16][17] investigating the efficacies of these plating techniques, most of such studies included simulation of only single bite force 14,16,17 or selected loading cases from the mastication cycle 5,15 while neglecting the 'alternating bilateral clenching cycle' 18 . Another common limitation is ignoring the periodontal ligament (PDL) and teeth 14,19,20 . The present study is aimed at understanding the subcondylar fracture fixation by comparing load transfer in intact and reconstructed fractured mandibles with five different plates: trapezoidal, lambda, strut, single and double-mini plates whole considering the complex mandible structure and the mastication cycle.…”

Section: Introductionmentioning

confidence: 99%

Biomechanical influence of plate configurations on mandible subcondylar fracture fixation: a finite element study

Gupta

Dutta

Dutta³

et al. 2023

Med Biol Eng Comput

View full text Add to dashboard Cite

Mandible subcondylar fractures have very high complication rate, yet there is no consensus in a suitable plate design for optimal patient outcomes. The present study is aimed at understanding the subcondylar fracture fixation by comparing load transfer in intact and reconstructed fractured mandibles with five different plates: single mini, trapezoid, lambda, strut, and double-mini plates under the complete mastication cycle. Under contralateral molar occlusion (LMOL), the single mini plate resulted in the highest strains. On the contrary, during ipsilateral molar clenching (RMOL), the tensile and compressive strain distributions were found to be reversed, with the tensile strains at the posterior border resulting in lesser strain in reconstructed mandible with single mini plate. Owing to the reduced strains in the reconstructed mandibles, the contralateral molar clenching task is preferred during the immediate post-surgery period for patients. Under this contralateral molar clenching, the peak von Mises stresses in the plate decreased with increase in the number of screws. Furthermore, the presence of two arms seems beneficial to neutralise the tensile and compressive strains across load cases. Consequently, double mini and trapezoid plates were found to perform better as compared to single mini plate during the entire mastication cycle for subcondylar fracture fixation.

show abstract

Section: Introductionmentioning

confidence: 99%

Biomechanical influence of plate configurations on mandible subcondylar fracture fixation: a finite element study

Gupta

Dutta

Dutta³

et al. 2023

Med Biol Eng Comput

View full text Add to dashboard Cite

show abstract

“…The maximum principal strains are considered the best measure to predict bone resorption 18 . There were almost no differences regarding the values of maximal principal strain between the PLLA and titanium materials, and the values were under the critical limit.…”

Section: Discussionmentioning

confidence: 99%

Biomechanical Comparison of Titanium and Poly-L-Lactic Acid Trapezoidal Plates Applied in a Subcondylar Fracture Model

Yalcin¹

2023

Journal of Craniofacial Surgery

View full text Add to dashboard Cite

Background/Aim: Different types of plates are used in clinical practice for the management of subcondylar fractures. This study aimed to compare the performance of poly-L-lactic acid (PLLA) and titanium trapezoidal plates in the fixation of subcondylar mandibular fractures using finite element analysis. Methods: Titanium and PLLA trapezoidal plates and screws were placed on the virtual model obtained from computed tomography images of a patient with a subcondylar fracture to perform finite element analysis. The analysis included maximum tension distribution, maximum principal strain, displacement, and deformation of the bone, plates, and screws. Results: The maximum tension distribution and maximum principal stress were found to be significantly higher on the titanium plate than on the PLLA plate and screws. Almost no difference was found between the trapezoidal and PLLA plates regarding the displacement of the fracture fragments at the fracture line. No difference was recorded regarding the displacement of the PLLA and titanium screws. The values of maximal principal strain between the PLLA and titanium materials showed no significant difference. Conclusions: The trapezoidal PLLA plates can be an alternative to trapezoidal titanium plates due to their functional stability and rigidity.

show abstract

“…Our material data on the compact and cancellous bones, teeth, and titanium were extracted from the analyses conducted in previous studies [ 14 , 16 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 ]. These data are summarized in Table 1 .…”

Section: Methodsmentioning

confidence: 99%

Mandibular Titanium Miniplates Change the Biomechanical Behaviour of the Mandible in the Case of Facial Trauma: A Three-Dimensional Finite Element Analysis

Graillon,

Foletti,

Godio-Raboutet

et al. 2023

Bioengineering

View full text Add to dashboard Cite

Our study aimed to compare the biomechanical behaviour of mandibles with or without titanium miniplates when subjected to an impact after bone healing using a finite element model (FEM) of the human mandible. We simulated mandibular trauma on an FEM of a human mandible carrying or not two parasymphyseal miniplates and applying a concentrated force of 2000 N to four different areas, including the insertion area, the area straddling the edge of the miniplates and the adjacent bone, at a distance from the miniplates on the symphysis, and on the basilar border of the mandible below the miniplates. Then, we compared the Von Mises stress distributions between the two models. In the case of an impact on the miniplates, the maximum Von Mises stress occurred in two specific areas, on the cortical bone at the posterior border of the two miniplates at a distance from the impact, while in the model without miniplates, the Von Mises stresses were homogenously distributed in the impact area. The presence of titanium miniplates in the case of trauma affects the biomechanical behaviour of the mandible and could cause more complex fractures. We recommend informing patients of this potential risk.

show abstract

Finite element analysis of different titanium miniplates: Evaluation of three-dimensional designs applied on condylar neck fractures

Cited by 6 publications

References 25 publications

Biomechanical influence of plate configurations on mandible subcondylar fracture fixation: a finite element study

Biomechanical influence of plate configurations on mandible subcondylar fracture fixation: a finite element study

Biomechanical Comparison of Titanium and Poly-L-Lactic Acid Trapezoidal Plates Applied in a Subcondylar Fracture Model

Mandibular Titanium Miniplates Change the Biomechanical Behaviour of the Mandible in the Case of Facial Trauma: A Three-Dimensional Finite Element Analysis

Contact Info

Product

Resources

About