scholarly journals Definition of ideal configuration for femoral neck screw fixation in older people

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Jialiang Guo ◽  
Weichong Dong ◽  
Shiji Qin ◽  
Yingze Zhang
Keyword(s):  
Femoral Neck ◽  
Femoral Shaft ◽  
Normal Subjects ◽  
Posterior Wall ◽  
Anterior Wall ◽  
Femoral Neck Fractures ◽  
Older Individuals ◽  
Mortality And Morbidity ◽  
Significant Difference ◽  
Neck Fracture

Abstract Femoral neck fractures are the most common injuries encountered by older individuals, and they are associated with high mortality and morbidity. Internal fixation to femoral neck fracture with cannulated screws placed with a configuration of an inverted triangle remain a feasible and effective treatment for femoral neck fractures. The objection of this research was to evaluate the femoral neck morphology, especially the shape of the femoral neck in Chinese people to find the optimal screw position and interval between the screws. 96 consecutive normal subjects without any previous proximal femur operation were reviewed. The patients’ information were collected from our database. The minimum of neck canal height (NCHM), neck canal width (NCWM) and inclination angle (AIA and PIA) were measured in different level. There was a significant difference between the AIA and PIA, neck canal height at inferior and superior 1/3 on posterior wall (NCHIP and NCHSP). Although there was a significant difference between the neck canal height at inferior and superior 1/3 on anterior wall (NCHIA and NCHSA, p < 0.001), but the changes were small. The shape of the anterior wall was perpendicular to the horizon and almost parallel with the FNA. In contrast, the shape of the posterior wall resembled a reverse question mark. The inverse triangular fixation was in accordance with the morphology of the femoral neck, and triangular fixation had a high risk of perforation, which may lead to nonunion and avascular necrosis. The anterior screw can be inserted easily with the help of a C-ARM, and the posterior screw positioned mildly posterior to the femoral shaft axis is recommended.

Comparative Analysis of Preoperative and Postoperative Muscle Around Hip Joint by Computed Tomography Between Intertrochanteric Fracture and Femur Neck Fracture

2020 ◽  
Author(s):  
Sung Yoon Jung ◽  
Hyeon Jun Kim ◽  
Kyu Taek Oh
Keyword(s):  
Femoral Neck ◽  
Femoral Neck Fracture ◽  
Intertrochanteric Fracture ◽  
Femoral Neck Fractures ◽  
Final Visit ◽  
Cross Sectional ◽  
Fracture Group ◽  
Significant Difference ◽  
Neck Fracture

Abstract Background:This study assessed the changes in hip muscles by comparing the preoperative and postoperative CT scan results between patients with intertrochanteric versus femoral neck fractures. Methods:48 patients who received surgical treatment for intertrochanteric or femoral neck fractures from February 2013 to February 2019 and underwent pelvic computed tomography(CT) preoperative and postoperatively aged 65 and older with a minimum follow-up of 1 year were included. The subjects were divided into two groups: 26 patients with intertrochanteric fracture and 22 patients with femoral neck fracture. We measured the cross-sectional area(CSA) and attenuation of the gluteus medius(G.med), gluteus minimus(G.min), iliopsoas(IP), and rectus femoris(RF) on the contralateral side. Patient basic data were collected from medial records including sex, age, height, weight, BMI, BMD, Harris hip score (HHS), and length of follow-up until the final visit. Results: There was no significant difference in sex, age, height, weight, BMI, BMD, HHS, and length of follow-up until the final visit between two groups. The femoral neck fracture group had significantly larger CSA and cross-sectional area per weight(CSA/Wt) of the G.med and G.min(G.med CSA, CSA/wt preoperative 1995.29 vs 1713.64, 38.87 vs 32.74; postoperative 2144.98 vs 1815.56, 37.48 vs 32.78/G.min preoperative 745.22 vs 566.59, 14.32 vs 10.96; postoperative 764.39 vs 619.17, 14.78 vs 11.25). On the contrary, the intertrochanteric fracture group had significantly greater CSA and CSA/Wt of the IP and RF(IP preoperative 810.86 vs 661.88, 17.73 vs 9.42; postoperative 681.98 vs 571.32, 12.68 vs 9.88/RF preoperative 503.66 vs 386.72, 9.42 vs 7.23; postoperative 426.24 vs 349.31, 7.17 vs 5.23). HHS related with function had no significant correlation with postoperative CSA and CSA/Wt. There was no significant difference in attenuation between two groups. All subjects had a significant decrease of muscle attenuation postoperatively.Conclusions: The CSA of the hip abductor(G.med and G.min) was significantly larger in the femoral neck fracture group, while the CSA of the hip flexor(IP and RF) was significantly higher in the intertrochanteric fracture group. Based on these findings, choosing the rehabilitation program suitable for the fracture site is expected to be beneficial in hip fracture rehabilitation.

scholarly journals BIOMECHANICAL ANALYSIS OF FEMORAL NECK FRACTURE FIXATION IN SYNTHETIC BONE

2018 ◽  
Vol 26 (3) ◽  
pp. 162-165
Author(s):  
HENRIQUE MANSUR ◽  
RAFAEL ALVAREZ ◽  
ANDERSON FREITAS ◽  
CESAR BARBOSA GONÇALVES ◽  
MAX ROGERIO FREITAS RAMOS
Keyword(s):  
Femoral Neck ◽  
Femoral Neck Fracture ◽  
Femoral Neck Fractures ◽  
Biomechanical Analysis ◽  
Type Ii ◽  
Cannulated Screws ◽  
Level Of Evidence ◽  
Synthetic Bone ◽  
Significant Difference ◽  
Neck Fracture

ABSTRACT Objectives To analyze the results of biomechanical assays of the fixation of Pauwels type II femoral neck fractures in synthetic bones, using two parallel cannulated screws or three cannulated screws in an inverted pyramid formation. Methods Ten Brazilian-made synthetic bones were divided into 2 groups. Groups A and B utilized three and two cannulated screws, respectively, after osteotomy in the middle third of the femur, perpendicular to the axis of the femoral neck, simulating a Pauwels type II femoral neck fracture. The resistance of these fixations was analyzed by compression on the axis of the force resulting from hip compression, simulated with a manual hydraulic press. The T-test and post hoc analysis were used to compare the groups, and the significance criterion adopted was p < 0.05. Results In group A, which used fixation with three screws, synthesis failure was seen at a mean force of 526 N. In group B, which used two screws, the mean force was 466 N. The results presented a statistically significant difference (p = 0.02). Conclusion The osteosynthesis of femoral neck fractures in synthetic bone fixated with two screws presented inferior results to fixation with three screws. Level of Evidence III; Case-control study.

HIP FRACTURES IN 5 YEARS AT HUE UNIVERSITY HOSPITAL

2014 ◽  
pp. 47-50
Author(s):  
Duy Binh Ho ◽  
Nghi Thanh Nhan Le ◽  
Maasalu Katre ◽  
Koks Sulev ◽  
Märtson Aare
Keyword(s):  
Hip Fracture ◽  
Femoral Neck ◽  
Hip Fractures ◽  
Age Groups ◽  
Femoral Fractures ◽  
Femoral Neck Fractures ◽  
University Hospital ◽  
High Risk Population ◽  
Intertrochanteric Fractures ◽  
Significant Difference

Aim: This study aimed to review the clinical findings and surgical intervention of the hip fracture at the Hue University Hospital in Vietnam. Methods:The data of proximal femoral fractures was collected retrospectively. All patients, in a period of 5 years, from Jan 2008 to December 2012, suffered either from intertrochanteric or femoral neck fractures. The numbers of patients were gathered separately for each year, by age groups (under 40, 40-49, 50-59, 60-69, 70-79, older) and by sex. We analyzed what kind of treatment options were used for the hip fracture. Results:Of 224 patients (93 men and 131 women) studied, 71% patients are over 70 years old, 103 women and 56 men (p<0.05). For patients under 40 years, there were 1 woman and 11 men (p<0.05). There were 88 intertrochanteric and 136 femoral neck fractures. There was no significant difference in the two fractures between men and women. The numbers of hip fracture increased by each year, 29/224 cases in 2010, 63/224 cases in 2011, 76/224 cases in 2012. Treatment of 88 intertrochanteric fractures: 49 cases (55.7%) of dynamic hip screw (DHS), 14 cases of hemiarthroplasty (15.9%), 2 cases of total hip replacement (2.3%). Treatment of 136 femoral neck fractures: 48 cases of total replacement (35.3%), 43 cases of hemiarthroplasty (31.6%), 15 cases of screwing (11%). In cases of 40 patients (17.9%) hip fracture was managed conservatively, 23 were femoral neck fractures and 17 were intertrochanteric fractures. Conclusions: Hip fracture is growing challenge in Hue medical university hospital. The conservative approach is still high in people who could not be operable due to severe medical conditions as well as for patients with economic difficulties. Over 70% of the hip fractures in people 70+ are caused by osteoporosis. The number of hip fracture is increasing in the following years, most likely due to the increase in the prevalence of osteoporosis. Early detection and prevention of osteoporosis should be addressed, particularly in high risk population. More aggressive surgical approach should be implemented in order to improve the quality of life in patients with hip fractures. Key words:Hip fracture.

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 Revision Rates After Surgical Treatment for Femoral Neck Fractures: Results of 2-Year Follow-up

Medicina ◽  
2013 ◽  
Vol 49 (3) ◽  
pp. 22
Author(s):  
Jaunius Kurtinaitis ◽  
Narūnas Porvaneckas ◽  
Giedrius Kvederas ◽  
Tomas Butėnas ◽  
Valentinas Uvarovas
Keyword(s):  
Total Hip Arthroplasty ◽  
Femoral Neck ◽  
Internal Fixation ◽  
Hip Arthroplasty ◽  
Revision Surgery ◽  
Femoral Neck Fractures ◽  
Total Hip ◽  
Significant Difference ◽  
Surgery Rates

Background and Objective. Intracapsular fractures of the femoral neck account for a major share of fractures in the elderly. Open reduction and internal fixation has been shown to have a higher rate of revision surgery than arthroplasty. The aim of this study was to assess and compare the rates of revision surgery performed after internal fixation and primary total hip arthroplasty. Material and Methods. Between 2004 and 2006, 681 intracapsular femoral neck fractures in 679 consecutive patients were treated with internal fixation or total hip arthroplasty at our institution. Revision surgery rates were evaluated at 1-, 3-, 6-, 12-, and 24-month follow-up. Results. There was no significant difference in the ratio of internal fixation to total hip arthroplasty during 2004–2006 (P=0.31). The mean rate of total hip arthroplasty was 19.1% with a lower rate being among patients younger than 60 years. Revision surgery rates at the 2-year followup were higher in the internal fixation group compared with total hip arthroplasty group (28.9% vs. 7.0%, P<0.001). Patients who underwent internal fixation were at a 4-fold greater risk of having revision surgery at the 2-year follow-up than those who underwent total hip arthroplasty (odds ratio, 4.11; 95% CI, 1.95–8.65; P<0.001). Age was a significant risk factor for revision surgery after total hip arthroplasty (hazard ratio, 0.93; 95% CI, 0.87–0.98; P=0.02), but not significant after the internal fixation (P=0.86). Conclusions. Higher revision surgery rates after internal fixation favors arthroplasty as a primary choice of treatment for the femoral neck fractures.

scholarly journals Re-Recognition of Garden Index as a Criterion for Evaluating the Quality of Femoral Neck Fracture Reduction: An Imaging Study Based on Cadaver Specimens

2021 ◽  
Author(s):  
Leyi Cai ◽  
Wenjie Li ◽  
Wenhao Zheng ◽  
Jianshun Wang ◽  
Xiaoshan Guo ◽  
...  
Keyword(s):  
Femoral Head ◽  
Femoral Neck ◽  
Femoral Neck Fracture ◽  
Kirschner Wire ◽  
Imaging Study ◽  
Lateral View ◽  
Healthy Human ◽  
Rotational Displacement ◽  
Significant Difference ◽  
Neck Fracture

Abstract ObjectiveTo investigate whether the Garden index can determine the rotational displacement of femoral neck fracture. MethodsTen healthy human femoral specimens were obtained. A 2.0 mm diameter Kirschner-wire was placed in the center of the femoral head. The osteotomy was perpendicular in the middle of the femoral neck. The distal osteotomy surface was indicated the angle of rotation (pronation and supination to 90°, every 10° was an interval). The X-ray of anterior-posterior and lateral view was taken at different angles according to the mark. The Garden index and other relevant data were analyzed with the PCAS system. Meanwhile, the change of the area of the femoral head fovea at different rotation angles was observed. ResultsThere was no significant difference in the Garden index in 0~30° at pronation and supination position (P>0.05). In range of 40°~90°, there was a statistical difference in the Garden index (P<0.05). With the increase of the pronation angle, the area of the femoral head fovea is gradually reduced; as the angle of the supination increases, the area of the femoral head fovea is gradually increased. ConclusionThe Garden Index cannot accurately determine the rotational displacement of the femoral neck fracture during the pronation or supination range of 0~30°. Changes in the area of the femoral head fovea can help determine the rotational displacement of the femoral neck fracture.Level of EvidenceLevel V.

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 A study of prospective analysis of unipolar versus bipolar hemiarthroplasty of hip joint in patients with fracture neck of femur

2021 ◽  
Vol 7 (3) ◽  
pp. 629
Author(s):  
Raja X. ◽  
Arjun Sarvesh ◽  
Karthikeyen M. ◽  
A. E. Manoharan
Keyword(s):  
Femoral Neck ◽  
Weight Bearing ◽  
Femoral Neck Fractures ◽  
Harris Hip Score ◽  
Bipolar Hemiarthroplasty ◽  
Neck Of Femur ◽  
Early Weight Bearing ◽  
Group I ◽  
Significant Difference ◽  
Group Ii

<p class="abstract"><strong>Background:</strong> Femoral neck fractures occur most commonly in elderly females and are a major cause of morbidity and mortality in this age group and require immediate and appropriate management. Aim of the study was to compare the functional outcome of unipolar Austin Moore's prosthesis (AMP) hemiarthroplasty (HA) and bipolar (BHA) HA with femoral neck fractures using Harris hip score system.</p><p class="abstract"><strong>Methods:</strong> The study was conducted on 60 patients aged above 50 years with fractured neck of femur admitted in Vinayaka missions Kirupananda Variyar medical college and hospital from August 2017 to August 2019. Patients with femoral neck fracture were allocated randomly to have 30 cases of AMP.</p><p class="abstract"><strong>Results:</strong> Out of the 60 cases, the patients in the bipolar (nonmodular) HA group II showed better functional outcomes compared to unipolar (AMP) HA group I after six months follow-ups. At 12 months of follow-up, there was no significant difference between group I (AMP) and group II (BHA).</p><p class="abstract"><strong>Conclusions:</strong> Our study demonstrates, hemiarthroplasty of the hip for femoral neck fractures is a good option in elderly patients. The mortality and morbidity are not high, the operative procedure is simple, complications are less disabling, early weight-bearing and functional results are satisfactory and second surgery are less frequently required.</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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