Published online Jul 16, 2023. doi: 10.12998/wjcc.v11.i20.4814
Peer-review started: May 11, 2023
First decision: May 31, 2023
Revised: June 7, 2023
Accepted: June 25, 2023
Article in press: June 25, 2023
Published online: July 16, 2023
Processing time: 62 Days and 1 Hours
The suitability of the 130° main nail angle design of the femoral neck dynamic intersection system (FNS) for Asian populations lacks relevant research reports.
To provide clinical guidance for the future treatment of femoral neck fracture and internal fixation optimization in Asian populations.
To compare the biomechanical stability differences in various FNS main nail angles for treating femoral neck fractures in Asian populations.
FNS models with different nail angles were designed, and the femur computed tomography (CT) data of the Asian population were utilized for mechanical simulation analysis of FNS treatment for femoral neck fractures.
The magnitude of proximal femoral displacement during stress varied as follows: 130° FNS fixation group, < 125° FNS fixation group, < 120° FNS fixation group, < 135° FNS fixation group, and < 140° FNS fixation group. The stresses of FNS were as follows: 125° FNS fixation group, < 120° FNS fixation group, < 130° FNS fixation group, < 135° FNS fixation group, and < 140° FNS fixation group. The Von Mises stress on the femur was predominantly distributed in the femoral surgical neck and diaphysis, and the maximum stress values were: 125° FNS fixation group, < 120° FNS fixation group, < 130° FNS fixation group, < 140° FNS fixation group, and < 135° FNS fixation group.
The main nail FNS angle of 130° has the best stability for treating femoral neck fractures in Asian populations with quantifiable stress distribution and minimal proximal femoral displacement.
To gain a more comprehensive understanding of the mechanical properties of FNS with different main nail fixation angles, the type of fracture and the test in clinical or experimental can be added later.