Comparison of femoral neck system and three cannulated cancellous screws in the treatment of vertical femoral neck fractures: clinical observation and finite element analysis

Abstract Objective The purpose of this study was to compare the biomechanical and clinical results of two surgical methods for the treatment of vertical femoral neck fractures: Femoral neck system (FNS) and traditional three cannulated cancellous screws (CCS). Methods First, we developed three diffe...

Full description

Bibliographic Details
Main Authors: Shaolong Huang, Yazhong Zhang, Xu Zhang, Chengqiang Zhou, Wenbo Li, Yunqing Wang, Bin Wang, Ziqiang Zhu
Format: Article
Language:English
Published: BMC 2023-03-01
Series:BioMedical Engineering OnLine
Subjects:
Online Access:https://doi.org/10.1186/s12938-023-01083-1
_version_ 1797864049731436544
author Shaolong Huang
Yazhong Zhang
Xu Zhang
Chengqiang Zhou
Wenbo Li
Yunqing Wang
Bin Wang
Ziqiang Zhu
author_facet Shaolong Huang
Yazhong Zhang
Xu Zhang
Chengqiang Zhou
Wenbo Li
Yunqing Wang
Bin Wang
Ziqiang Zhu
author_sort Shaolong Huang
collection DOAJ
description Abstract Objective The purpose of this study was to compare the biomechanical and clinical results of two surgical methods for the treatment of vertical femoral neck fractures: Femoral neck system (FNS) and traditional three cannulated cancellous screws (CCS). Methods First, we developed three different vertical femoral neck fracture models for the finite element analysis, with angles of 55°, 65°, and 75°, respectively. Two experimental groups were set up: the FNS group and the CCS group. Each fracture group was tested under axial loads of 2100 N to measure the femur's displacement, Von Mises stress (VMS), and its internal fixation components. Secondly, we retrospectively included the cases of vertical femoral neck fractures with FNS and CCS in our hospital from May 2019 to May 2021. In this study, we compared the duration of intraoperative fluoroscopy, operative time, hospital stay, fracture healing time, Hemoglobin loss, Harris score of hip joint function, and postoperative complications among patients undergoing hip joint replacement. Results In terms of finite element analysis, FNS has better anti-displacement stability than CCS at 55°and 65°, while FNS is greater than CCS in Von Mises stress. Clinically, we followed up on 87 patients for an average of 12 months. FNS was superior to traditional CCS in fracture healing time, operation time, fluoroscopy duration, fracture healing time, and Harris hip function score. Conclusion FNS is superior to traditional CCS in biomechanical and clinical aspects of treating vertical femoral neck fractures. There is potential for FNS to become a new treatment option for vertical femoral neck fractures.
first_indexed 2024-04-09T22:46:24Z
format Article
id doaj.art-e2dfca3f867d487b8b45636cca80cc79
institution Directory Open Access Journal
issn 1475-925X
language English
last_indexed 2024-04-09T22:46:24Z
publishDate 2023-03-01
publisher BMC
record_format Article
series BioMedical Engineering OnLine
spelling doaj.art-e2dfca3f867d487b8b45636cca80cc792023-03-22T11:53:29ZengBMCBioMedical Engineering OnLine1475-925X2023-03-0122111210.1186/s12938-023-01083-1Comparison of femoral neck system and three cannulated cancellous screws in the treatment of vertical femoral neck fractures: clinical observation and finite element analysisShaolong Huang0Yazhong Zhang1Xu Zhang2Chengqiang Zhou3Wenbo Li4Yunqing Wang5Bin Wang6Ziqiang Zhu7Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical UniversityDepartment of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical UniversityDepartment of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical UniversityDepartment of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical UniversityDepartment of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical UniversityDepartment of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical UniversityDepartment of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical UniversityDepartment of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical UniversityAbstract Objective The purpose of this study was to compare the biomechanical and clinical results of two surgical methods for the treatment of vertical femoral neck fractures: Femoral neck system (FNS) and traditional three cannulated cancellous screws (CCS). Methods First, we developed three different vertical femoral neck fracture models for the finite element analysis, with angles of 55°, 65°, and 75°, respectively. Two experimental groups were set up: the FNS group and the CCS group. Each fracture group was tested under axial loads of 2100 N to measure the femur's displacement, Von Mises stress (VMS), and its internal fixation components. Secondly, we retrospectively included the cases of vertical femoral neck fractures with FNS and CCS in our hospital from May 2019 to May 2021. In this study, we compared the duration of intraoperative fluoroscopy, operative time, hospital stay, fracture healing time, Hemoglobin loss, Harris score of hip joint function, and postoperative complications among patients undergoing hip joint replacement. Results In terms of finite element analysis, FNS has better anti-displacement stability than CCS at 55°and 65°, while FNS is greater than CCS in Von Mises stress. Clinically, we followed up on 87 patients for an average of 12 months. FNS was superior to traditional CCS in fracture healing time, operation time, fluoroscopy duration, fracture healing time, and Harris hip function score. Conclusion FNS is superior to traditional CCS in biomechanical and clinical aspects of treating vertical femoral neck fractures. There is potential for FNS to become a new treatment option for vertical femoral neck fractures.https://doi.org/10.1186/s12938-023-01083-1Femoral neck systemCannulated cancellous screwsVertical femoral neck fractureFinite element analysisSurgical fixation devices
spellingShingle Shaolong Huang
Yazhong Zhang
Xu Zhang
Chengqiang Zhou
Wenbo Li
Yunqing Wang
Bin Wang
Ziqiang Zhu
Comparison of femoral neck system and three cannulated cancellous screws in the treatment of vertical femoral neck fractures: clinical observation and finite element analysis
BioMedical Engineering OnLine
Femoral neck system
Cannulated cancellous screws
Vertical femoral neck fracture
Finite element analysis
Surgical fixation devices
title Comparison of femoral neck system and three cannulated cancellous screws in the treatment of vertical femoral neck fractures: clinical observation and finite element analysis
title_full Comparison of femoral neck system and three cannulated cancellous screws in the treatment of vertical femoral neck fractures: clinical observation and finite element analysis
title_fullStr Comparison of femoral neck system and three cannulated cancellous screws in the treatment of vertical femoral neck fractures: clinical observation and finite element analysis
title_full_unstemmed Comparison of femoral neck system and three cannulated cancellous screws in the treatment of vertical femoral neck fractures: clinical observation and finite element analysis
title_short Comparison of femoral neck system and three cannulated cancellous screws in the treatment of vertical femoral neck fractures: clinical observation and finite element analysis
title_sort comparison of femoral neck system and three cannulated cancellous screws in the treatment of vertical femoral neck fractures clinical observation and finite element analysis
topic Femoral neck system
Cannulated cancellous screws
Vertical femoral neck fracture
Finite element analysis
Surgical fixation devices
url https://doi.org/10.1186/s12938-023-01083-1
work_keys_str_mv AT shaolonghuang comparisonoffemoralnecksystemandthreecannulatedcancellousscrewsinthetreatmentofverticalfemoralneckfracturesclinicalobservationandfiniteelementanalysis
AT yazhongzhang comparisonoffemoralnecksystemandthreecannulatedcancellousscrewsinthetreatmentofverticalfemoralneckfracturesclinicalobservationandfiniteelementanalysis
AT xuzhang comparisonoffemoralnecksystemandthreecannulatedcancellousscrewsinthetreatmentofverticalfemoralneckfracturesclinicalobservationandfiniteelementanalysis
AT chengqiangzhou comparisonoffemoralnecksystemandthreecannulatedcancellousscrewsinthetreatmentofverticalfemoralneckfracturesclinicalobservationandfiniteelementanalysis
AT wenboli comparisonoffemoralnecksystemandthreecannulatedcancellousscrewsinthetreatmentofverticalfemoralneckfracturesclinicalobservationandfiniteelementanalysis
AT yunqingwang comparisonoffemoralnecksystemandthreecannulatedcancellousscrewsinthetreatmentofverticalfemoralneckfracturesclinicalobservationandfiniteelementanalysis
AT binwang comparisonoffemoralnecksystemandthreecannulatedcancellousscrewsinthetreatmentofverticalfemoralneckfracturesclinicalobservationandfiniteelementanalysis
AT ziqiangzhu comparisonoffemoralnecksystemandthreecannulatedcancellousscrewsinthetreatmentofverticalfemoralneckfracturesclinicalobservationandfiniteelementanalysis