Optimizing femoral anteversion and offset after total hip arthroplasty, using a modular femoral neck system: an experimental study

2000 ◽  
Vol 5 (5) ◽  
pp. 489-494 ◽  
Author(s):  
Takashi Sakai ◽  
Nobuhiko Sugano ◽  
Takashi Nishii ◽  
Keiji Haraguchi ◽  
Takahiro Ochi ◽  
...  
Keyword(s):  
Experimental Study ◽  
Total Hip Arthroplasty ◽  
Femoral Neck ◽  
Hip Arthroplasty ◽  
Femoral Anteversion ◽  
Total Hip ◽  
Modular Femoral Neck System

Femoral anteversion, femoral offset, and abductor lever arm after total hip arthroplasty using a modular femoral neck system

2002 ◽  
Vol 7 (1) ◽  
pp. 62-67 ◽  
Author(s):  
Takashi Sakai ◽  
Nobuhiko Sugano ◽  
Kenji Ohzono ◽  
Takashi Nishii ◽  
Keiji Haraguchi ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Femoral Neck ◽  
Hip Arthroplasty ◽  
Femoral Anteversion ◽  
Femoral Offset ◽  
Total Hip ◽  
Lever Arm ◽  
Abductor Lever Arm ◽  
Modular Femoral Neck System

Combination of CRP with NLR is a sensitive tool for screening fixation-related infection in patients undergoing conversion total hip arthroplasty after failed internal fixation for femoral neck fracture

2021 ◽  
pp. 1-7
Author(s):  
Hong Xu ◽  
Jin-Wei Xie ◽  
Li Liu ◽  
Duan Wang ◽  
Ze-Yu Huang ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Femoral Neck ◽  
Internal Fixation ◽  
Femoral Neck Fracture ◽  
Sensitivity And Specificity ◽  
Hip Arthroplasty ◽  
Lymphocyte Ratio ◽  
Total Hip ◽  
Sensitive Tool ◽  
Neck Fracture

Aims Monocyte-lymphocyte ratio (MLR) or neutrophil-lymphocyte ratio (NLR) are useful for diagnosing periprosthetic joint infection (PJI), but their diagnostic values are unclear for screening fixation-related infection (FRI) in patients for whom conversion total hip arthroplasty (THA) is planned after failed internal fixation for femoral neck fracture. Methods We retrospectively included 340 patients who underwent conversion THA after internal fixation for femoral neck fracture from January 2008 to September 2020. Those patients constituted two groups: noninfected patients and patients diagnosed with FRI according to the 2013 International Consensus Meeting Criteria. Receiver operating characteristic (ROC) curves were used to determine maximum sensitivity and specificity of these two preoperative ratios. The diagnostic performance of the two ratios combined with preoperative CRP or ESR was also evaluated. Results The numbers of patients with and without FRI were 19 (5.6%) and 321 (94.4%), respectively. Areas under the ROC curve for diagnosing FRI were 0.763 for MLR, 0.686 for NLR, 0.905 for CRP, and 0.769 for ESR. Based on the Youden index, the optimal predictive cutoffs were 0.25 for MLR and 2.38 for NLR. Sensitivity and specificity were 78.9% and 71.0% for MLR, and 78.9% and 56.4% for NLR, respectively. The combination of CRP with MLR showed a sensitivity of 84.2% and specificity of 94.6%, while the corresponding values for the combination of CRP with NLR were 89.5% and 91.5%, respectively. Conclusion The presence of preoperative FRI among patients undergoing conversion THA after internal fixation for femoral neck fracture should be determined. The combination of preoperative CRP with NLR is sensitive tool for screening FRI in those patients.

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 Measurement of operative femoral anteversion during cementless total hip arthroplasty and influencing factors for using neck-adjustable femoral stem

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Jingyang Sun ◽  
Bohan Zhang ◽  
Lei Geng ◽  
Qingyuan Zheng ◽  
Juncheng Li ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Influencing Factors ◽  
Hip Arthroplasty ◽  
Perioperative Complications ◽  
Demographic Data ◽  
Univariate Analysis ◽  
Femoral Stem ◽  
Femoral Anteversion ◽  
Total Hip

Abstract Background Placement of femoral stem in excessive anteversion or retroversion can cause reduced range of motion, prosthetic impingement, and dislocation. The aim of this study was to assess the operative femoral anteversion in patients treated with total hip arthroplasty (THA) and analyze the need of adjusting stem anteversion. Methods We retrospectively included 101 patients (126 hips) who underwent cementless THA with a manual goniometer to determine the femoral anteversion between October 2017 and December 2018. The operative femoral anteversion we measured was recorded during THA. We further divided those hips into three subgroups based on the range of operative femoral anteversion: group 1 (<10°), group 2 (10–30°), and group 3 (>30°) and compared the differences of their demographic data. Univariate and multivariate logistic regression were used to identify the influencing factors for the need of neck-adjustable femoral stem. The clinical and radiographic outcomes were also assessed. Perioperative complications were recorded. Results After THA, the Harris hip scores improved from 52.87 ± 15.30 preoperatively to 90.04 ± 3.31 at the last follow-up (p < 0.001). No implant loosening, stem subsidence, and radiolucent lines were observed on radiographs. No severe complications occurred and no components needed revision at the latest follow-up. The mean operative femoral anteversion was 14.21° ± 11.80° (range, −9 to 60°). Patients with femoral anteversion more than 30° were about 10 years younger than others. Femoral anteversion >30° was more common in patients with developmental dysplasia of the hip (DDH). There were totally 14 hips treated with the neck-adjustable femoral stem. From the univariate analysis, we can observe that female sex, diagnosis of DDH (compared with osteonecrosis), and higher operative femoral anteversion and its value >30° (compared with <10°) are associated with higher rates of using the neck-adjustable femoral stem. However, all these factors were no longer considered as independent influencing factors when mixed with other factors. Conclusions This study highlighted the significance of operative femoral anteversion. Identification of abnormal femoral anteversion could assist in adjusting stem anteversion and reduce the risk of dislocation after THA.

scholarly journals Total hip arthroplasty versus hemiarthroplasty for displaced femoral neck fractures in the healthy elderly: a meta-analysis and systematic review of randomized trials

2012 ◽  
Vol 36 (8) ◽  
pp. 1549-1560 ◽  
Author(s):  
Paul T. P. W. Burgers ◽  
Arnoud R. Van Geene ◽  
Michel P. J. Van den Bekerom ◽  
Esther M. M. Van Lieshout ◽  
Bastiaan Blom ◽  
...  
Keyword(s):  
Systematic Review ◽  
Total Hip Arthroplasty ◽  
Femoral Neck ◽  
Hip Arthroplasty ◽  
Randomized Trials ◽  
Meta Analysis ◽  
Femoral Neck Fractures ◽  
Total Hip ◽  
Healthy Elderly ◽  
Displaced Femoral Neck Fractures
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