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. 2023 Mar 31;18(1):262.
doi: 10.1186/s13018-023-03743-3.

Finite element analysis of a novel anatomical locking plate for scapular neck fracture

Feifan Xiang #  1   2   3 , Yukun Xiao #  1   2 , Daiqing Wei  1   2 , Xiaoqi Tan  4 , Siyuan He  5 , Liang Luo  6 , Yunkang Yang  7   8
Affiliations

Finite element analysis of a novel anatomical locking plate for scapular neck fracture

Feifan Xiang et al. J Orthop Surg Res. .

Abstract

Objectives: Reconstruction plates (RPs) are commonly used in scapular neck fractures (SNFs): however, RPs have many defects. In this study, we evaluated a newly designed scapular neck anatomical locking compression plate (SNALCP).

Methods: An SNF finite element model (Miller-type IIB) was constructed. Plates were subsequently implanted into the scapula and fixed with screws that were grouped according to the plate used: SNALCP (A) and RP (B). Finally, loads were applied to record and analyze performance.

Results: Under lateral, anteroposterior, and vertical compression loads, the maximum von Mises stresses on the scapula and implants of group A were smaller than those of group B. There were some differences in stress distribution between the two groups.

Conclusions: SNALCP can effectively reduce the stress of the scapula and implant, making stress distribution more uniform and continuous, and has mechanical conduction advantages. Compared to RP, it provides improved stability and more reliable fixation.

Keywords: Anatomical locking plate; Biomechanical characteristics; Finite element analysis; Reconstruction plate; Scapular neck fractures.

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Conflict of interest statement

The authors declare that they have no conflicts of interest.

Figures

Fig. 1
Fig. 1
Diagram showing the design and main parameters of the new scapular neck anatomical locking plate. a Frontal view. b Side view
Fig. 2
Fig. 2
a Scapular neck fracture models. b Group A (SNALCP). c Group B (RP)
Fig. 3
Fig. 3
Loading and boundary condition of the 3D model. Red represents the force surface and blue represents boundary condition. a, b Force surface and boundary condition for Lateral compression load. c, d Force surface and boundary condition for anteroposterior compression load. e, f Force surface and boundary condition for vertical compression load
Fig. 4
Fig. 4
Stress distribution of the scapula. Group A (SNALCP). Group B (RP)
Fig. 5
Fig. 5
a Maximum von Mises stress on the scapula. b Maximum von Mises stress on the implants. c Maximum displacement of the fracture gap
Fig. 6
Fig. 6
Stress distribution of the implants. Group A (SNALCP). Group B (RP)
See this image and copyright information in PMC

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