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.

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.

scholarly journals A Case of Two Consecutive Peri-Implant Fractures After Treatment of an Incomplete Stress Fracture of the Femoral Neck with a Sliding Hip Screw Device in a Young Adult

2019 ◽  
pp. 1-4
Author(s):  
Utkarsh Anil ◽  
Abhishek Ganta ◽  
Sanjit R Konda
Keyword(s):  
Young Adult ◽  
Femoral Neck ◽  
Femoral Neck Fracture ◽  
Trochanteric Fracture ◽  
Atypical Presentation ◽  
Sliding Hip Screw ◽  
Postoperative Course ◽  
Neck Fracture ◽  
Surgical Fixation ◽  
Hip Screw

We present an atypical presentation of a non-displaced femoral neck fracture in a young adult after a fall from standing sustained 4 days prior to presentation. Patient underwent surgical fixation with a sliding hip screw, the postoperative course of which was complicated by an atraumatic peri-implant greater trochanteric fracture, requiring surgery for open reduction and internal fixation. The course was further complicated by another atraumatic peri-implant femoral neck fracture after which, the patient was definitely treated with a total hip arthroplasty.

scholarly journals Comparison outcome in management of femoral neck fracture using multiple cancellous screws with and without fibular graft

2020 ◽  
Vol 8 (9) ◽  
pp. 3333
Author(s):  
I. Komang Indra Teguh Wisesa ◽  
I. Wayan Suryanto Dusak
Keyword(s):  
Femoral Neck ◽  
Femoral Neck Fracture ◽  
Femoral Neck Fractures ◽  
Fibular Graft ◽  
Neck Fracture ◽  
Hip Screw ◽  
Cancellous Screws ◽  
The Mean ◽  
Mean Time ◽  
Fibular Strut

Multiple cancellous cannulated screw is preferred method in fresh cases of fracture neck of femur in young patients. Fibular strut graft is sometimes used along with multiple cancellous cannulated screws to enhance union and early restoration of function. We conducted a retrospective study to patients aged between 20-50 years old with femoral neck fracture treated with multiple cancellous screws either with or without fibular graft between the period of January 2016 to January 2018. We obtained total of six patients (five males and one female) with femoral neck fracture treated with multiple cancellous screws either with or without fibular graft. All fractures were garden type II-IV fresh femoral neck fractures. The functional outcome based on Harris hip score was excellent for all patients. The mean time of full weight bearing was 16±8 weeks in both multiple cancellous screws without fibular group and multiple cancellous screws with fibular group. The mean time of union was also 16±8 weeks in both groups. There is no complication such as non-union, avascular necrosis of femoral head and/or broken fibular graft in both the groups occurrences. Fixation with cancellous screws and fibular strut grafts for femoral neck fractures is cost effective and technically less demanding and associated with good outcomes. There is no added advantage of non-vascularized fibular grafting with multiple hip screw fixation in fresh femoral neck fractures in young adults over multiple hip screw fixation alone.

Impaired renal function is an independent risk factor for complications after surgery for femoral neck fracture

2021 ◽  
pp. 112070002110285
Author(s):  
Pradip Ramamurti ◽  
Safa C Fassihi ◽  
David Sacolick ◽  
Alex Gu ◽  
Chapman Wei ◽  
...  
Keyword(s):  
Renal Function ◽  
Risk Factor ◽  
Femoral Neck ◽  
Femoral Neck Fracture ◽  
Impaired Renal Function ◽  
Independent Risk Factor ◽  
Femoral Neck Fractures ◽  
Stage 4 ◽  
Ckd Stage ◽  
Neck Fracture

Background: The metabolic abnormalities that occur secondary to chronic kidney disease (CKD) increase the risk of femoral neck fractures compared to the general population. The purpose of this study is to determine whether impaired renal function is an independent risk factor for complications after surgery for femoral neck fracture. Methods: The ACS-NSQIP database was reviewed for patients who underwent total hip arthroplasty, hemiarthroplasty and open reduction internal fixation (ORIF) for femoral neck fractures between 2007 and 2018. Patients were split into cohorts based on calculated estimated glomerular filtration rate. Demographic information, comorbidities, and 30-day complications were analysed with univariate and multivariate analyses using chi-square, Fischer’s exact and analysis of variance testing. Results: The total number of patients for the study was 163,717. Patients with CKD stage 4 and 5 had an increased rate of any complication (39.1 and 36.7% respectively) compared with higher eGFRs ( p  < 0.001). Similarly, 30-day mortality was increased at 6.0% and 6.7% for both stage 4 and 5 ( p  < 0.001). By multivariate regression, those with CKD Stage 4 and 5 were at increased risk for any complication compared to patients with a normal preoperative eGFR of 90–120 ( p  < 0.001). Conclusions: This study demonstrated that patients with CKD Stage 4 and 5 are at increased risks of all complications, including death, renal, pulmonary and thromboembolic disease. Therefore, these patients should be cared for from a multidisciplinary approach with close attention to postoperative medications and fall prevention to help mitigate the risk of complications in the immediate postoperative period.

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

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.

scholarly journals Calcar buttressed screw fixation for femoral neck fracture

2018 ◽  
Vol 5 (1) ◽  
pp. 145
Author(s):  
K. K. Arvind Manoj ◽  
R. Karthik ◽  
A. Vishnu Sankar
Keyword(s):  
Femoral Neck ◽  
Functional Outcome ◽  
Femoral Neck Fracture ◽  
Screw Fixation ◽  
Femoral Neck Fractures ◽  
Fixation Strength ◽  
Harris Hip Score ◽  
Average Period ◽  
Excellent Outcome ◽  
Neck Fracture

<p class="abstract"><strong>Background:</strong> The incidence of neck of femur fracture among elderly population is increasing day by day. Femoral neck fracture has always been an unsolved fracture<strong> </strong>as far as treatment and results are concerned. There are different views regarding the optimal method of internal fixation in femoral neck fractures. Biomechanical data from literature suggest that calcar fixation is superior to central screws placement. This study aims to analyse the functional and radiological outcome of femoral neck fractures treated by calcar buttressed screw fixation described by Filipov as biplane double supported screw fixation.</p><p class="abstract"><strong>Methods:</strong> This is a prospective study conducted in our institution from May 2015 to May 2018.The study included 43 patients (31 male, 12 female) with femoral neck fracture. Three 6.5-mm cannulated screws were laid in two medially diverging oblique planes. The distal and the middle screws were supported on the calcar. The distal screw had additional support on the posterior neck cortex. Patients were followed up for average period of 2 years. Functional outcome was evaluated using Harris Hip score.<strong></strong></p><p class="abstract"><strong>Results:</strong> Bone union occurred in 40 patients (93%) with average period of 3-4 months.<strong> </strong>51.2% of cases had<strong> </strong>excellent outcome. 23.2% of cases had good and 16.3% of cases had fair outcome. 9.3% of cases ended with poor outcome. Non union was reported in 3 patients (7%) and AVN in one patient. Various factors like age, Garden and Pauwel fracture types, time of presentation and time of surgery were statistically significant to the final functional outcome in our study.</p><p><strong>Conclusions:</strong> By providing additional calcar buttress compared to conventional method, this technique of screw fixation enhances femoral neck fracture fixation strength and reduces the fixation failure. </p>

scholarly journals Impact of Cigarette Smoking on Re-operation and Revision Surgery after Femoral Neck Fracture Treatment

2020 ◽  
Vol 13 ◽  
pp. 195-201
Author(s):  
Mitchell Messner ◽  
Alexander Chong ◽  
Bruce Piatt
Keyword(s):  
Femoral Neck ◽  
Femoral Neck Fracture ◽  
Femoral Neck Fractures ◽  
Non Union ◽  
Initial Fixation ◽  
Neck Fracture ◽  
Group 3 ◽  
Former Smokers ◽  
Group 2 ◽  
Group 1

Introduction. Smokers and nicotine users have a higher risk of femoral neck fracture non-union and prolonged time to fracture union. The impact of smoking resulting in revision surgery after fixation of femoral neck fractures, however, rarely has been studied. The aim of this retrospective study was to review if cigarette smoking had an influence on re-operation and revision after femoral neck fracture treatment. Methods. Three groups of patients (Group 1: active smokers; Group 2: former smokers; and Group 3: non-smokers) who sustained a femoral neck fracture from January 2012 through August 2018 were included. Outcomes investigated included femoral neck fracture type, operative fixation type, fixation failure, and time interval between initial fixation and revision. Results. A total of 1,452 subjects were identified (Group 1: 165 subjects; Group 2: 507 subjects; and Group 3: 780 subjects). In the male population, Groups 1 and 2 had higher rates of femoral neck fracture than Group 3. Twelve cases required revisions (Group 1: three cases (6%); Group 2: two cases (2%); Group 3: seven cases (4%)), with all but one revision within the first year following initial fixation. Group 1 patients tended to be younger than the other two groups. Conclusion. Smoking has a positive association with the risk of femoral neck fracture amongst active and former male smokers. This study concluded that active smokers have a higher risk of non-union compared with non-smokers or former smokers. Smoking history, especially heavy or long-term, should play a role in deciding which fixation construct type to use for femoral neck fractures.

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