scholarly journals Treatment of the Femoral Neck Fracture Using a Compression Hip Screw

1980 ◽  
Vol 29 (1) ◽  
pp. 1-4
Author(s):  
K. Ohno ◽  
J. Tokunaga ◽  
H. Ueno ◽  
A. Kobayashi ◽  
K. Fukumoto ◽  
...  
Keyword(s):  
Femoral Neck ◽  
Femoral Neck Fracture ◽  
Neck Fracture ◽  
Hip Screw

New fixation method for Pauwels type III femoral neck fracture: a finite element analysis of sliding hip screw, L-shaped, and L-shaped with medial plate

2021 ◽  
Author(s):  
Anderson Freitas ◽  
Ricardo Lourenço Bontempo ◽  
Frank Anderson Ramos Azevedo ◽  
Leonardo Rigobello Battaglion ◽  
Marcos Noberto Giordano ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Femoral Neck ◽  
Femoral Neck Fracture ◽  
Fixation Method ◽  
Sliding Hip Screw ◽  
Element Analysis ◽  
Type Iii ◽  
Neck Fracture ◽  
Hip Screw

scholarly journals Comparative Analysis for Internal Fixations of Pauwels II by Biomechanical Finite Element Method

2019 ◽  
Vol 103 (9-10) ◽  
pp. 493-504
Author(s):  
Matthew Jian-Qiao Peng ◽  
Xiangyang Ju ◽  
Hai-Yan Chen ◽  
Bai Bo ◽  
XinXu Li
Keyword(s):  
Finite Element ◽  
South Carolina ◽  
Femoral Neck ◽  
Femoral Neck Fracture ◽  
3D Models ◽  
Secondary Fracture ◽  
Solid Models ◽  
Neck Fracture ◽  
Hip Screw ◽  
3D Solid

Purpose: A series models of surgical internal fixation for femoral neck fracture of Pauwels II will be constructed by an innovative approach of finite element so as to determine the most stable fixation by comparison of their biomechanical performance. Method: Seventeen specimens of proximal femurs scanned by computed tomography in Digital Imaging and Communications in Medicine (DICOM) format were input onto Mimics rebuilding 3D models; their stereolithography (STL) format dataset were imported into Geomagic Studio (3D Systems, Rock Hill, South Carolina) for simulative osteotomy and non-uniform rational basis spline kartograph; the generated IGS dataset were interacted by UG to fit simulative 3D-solid models; 3 sorts of internal fixators were expressed in 3D model by ProE (PTC, Boston, Connecticut) program virtually. Processed by HyperMesh (Altair, Troy, Michigan), all compartments (fracture model + internal immobilization) were assembled onto 3 systems actually as: Dynamic hip screw (DHS) / Lag screw (LS) / DHS+LS. Eventually, a numerical model of finite elemental analysis was exported to ANSYS for solution. Result: Three models of internal fixations for femoral neck fracture of Pauwels II were established and validated effectively, the stress and displacement of each internal pin were analyzed, the advantages of each surgical therapy for femoral neck fracture of Pauwels II were compared and demonstrated synthetically as: “The contact stress of 3-LS-system was checked to be the least; the interfragmentary displacement of DHS+1-LS assemblages was assessed to be the least.” Conclusion: 3-LS-system is recommended to be a clinical optimization for Pauwels II femoral neck facture, by this therapeutic fixation mechanically, breakage of fixators, or secondary fracture rarely occurs.

Modified F Configuration in the Treatment of Pauwels Type III Femoral Neck Fracture: a Finite Element Analysis

2021 ◽  
Author(s):  
Shiyuan Lin ◽  
Huizi Li ◽  
Kai Tong ◽  
Zihang Feng ◽  
Gang Wang ◽  
...  
Keyword(s):  
Finite Element ◽  
Stress Distribution ◽  
Femoral Neck ◽  
Femoral Neck Fracture ◽  
Femoral Neck Fractures ◽  
Cannulated Screw ◽  
Type Iii ◽  
Neck Fracture ◽  
Maximum Crack ◽  
Hip Screw

Abstract Background: The optimal treatment of Pauwels type III femoral neck fracture in young patients remains a worldwide challenge in orthopedic surgery. Methods: Finite element models of four internal fixations were developed to treat Pauwels type III Femoral neck fracture: a: the traditional inverted triangular cannulated screw model, b: the F-technique cannulated screw model, c: the modified F-technique cannulated screw model using a fully threaded screw instead of a partially threaded distally, d: the dynamic hip screw coupled with anti-rotational screw model. Under the same conditions, finite element analyses were carried out to compare the displacement and von Mises stress distribution of four internal fixations and femurs, the maximum crack distances of the fracture surfaces, Z axis displacements of four models as well as the stress distribution in the subtrochanteric region. Results: The modified F-technique configuration resulted in a more stable fixation as compared to the other three approaches, with respect to the maximum displacement and stress peaks of femur and internal fixations, the maximum crack distances of the fracture surfaces, Z axis displacements of four configurations as well as the stress distribution in the subtrochanteric region.Conclusions: Our results suggested that modified F-technique configuration show a better performance in resisting shearing and rotational forces in treating Pauwels type III femoral neck fractures compared to those using traditional inverted triangular, the F-technique configuration or dynamic hip screw coupled with anti-rotational screw, providing a new choice for the treatment of femoral neck fractures.

Dynamic hip screw and fibular strut graft for fixation of fresh femoral neck fracture with posterior comminution

2017 ◽  
Vol 137 (10) ◽  
pp. 1363-1369 ◽  
Author(s):  
Adham Elgeidi ◽  
Abed El Negery ◽  
M. Serry Abdellatif ◽  
Nabil El Moghazy
Keyword(s):  
Femoral Neck ◽  
Femoral Neck Fracture ◽  
Dynamic Hip Screw ◽  
Strut Graft ◽  
Neck Fracture ◽  
Hip Screw ◽  
Fibular Strut ◽  
Posterior Comminution

scholarly journals Subcapital Femoral Neck Fracture following Successful Trochanteric Fracture Treatment with a Dynamic Hip Screw: A Report of Five Cases

2007 ◽  
Vol 15 (2) ◽  
pp. 238-241 ◽  
Author(s):  
YT Lung ◽  
WL Kam ◽  
YF Leung ◽  
OM Chung ◽  
YL Wai
Keyword(s):  
Femoral Neck ◽  
Femoral Neck Fracture ◽  
Dynamic Compression ◽  
Trochanteric Fracture ◽  
Femoral Neck Fractures ◽  
Fracture Treatment ◽  
Trochanteric Fractures ◽  
Neck Fracture ◽  
Hip Screw ◽  
Type Of Fracture

A subcapital femoral neck fracture complicating a healed trochanteric fracture is rare. Such cases are managed in a rather heterogeneous manner, i.e. there exists a mixture of cases treated by either fixed angle devices or dynamic compression screws. We describe 5 patients who developed subcapital femoral neck fractures after healed trochanteric fractures treated with dynamic compression screws. The subjects' clinical data, operative records, and radiographs have been studied retrospectively and the literature reviewed. The risk factors for such a complication include being of advanced age, female, osteoporotic, and having a small femoral head and neck, and a basicervical type of fracture.

scholarly journals Sliding hip screw versus cannulated cancellous screws for fixation of femoral neck fracture in adults: A systematic review

2018 ◽  
Vol 52 ◽  
pp. 89-97 ◽  
Author(s):  
Jian-xiong Ma ◽  
Ming-jie Kuang ◽  
Fei Xing ◽  
Yun-long Zhao ◽  
Heng-ting Chen ◽  
...  
Keyword(s):  
Systematic Review ◽  
Femoral Neck ◽  
Femoral Neck Fracture ◽  
Sliding Hip Screw ◽  
Neck Fracture ◽  
Hip Screw ◽  
Cancellous Screws

scholarly journals Femoral Neck Fracture after Removal of the Compression Hip Screw: A Case Report

2005 ◽  
Vol 54 (4) ◽  
pp. 643-646 ◽  
Author(s):  
Tateki Segata ◽  
Teiji Kato ◽  
Katsuhiko Kunitake ◽  
Kenshi Kikukawa
Keyword(s):  
Case Report ◽  
Femoral Neck ◽  
Femoral Neck Fracture ◽  
Neck Fracture ◽  
Hip Screw
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