scholarly journals Direct measurement of malrotation of traumatic femoral neck fractures after osteosynthesis: Introduction of a novel method and interrater reliability

PLoS ONE ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. e0250409
Author(s):  
Tarek Omar Pacha ◽  
Lena Sonnow ◽  
Gesa Helen Poehler ◽  
Tilman Graulich ◽  
Mohamed Omar ◽  
...  
Keyword(s):  
Femoral Neck ◽  
Internal Fixation ◽  
Interrater Reliability ◽  
Femoral Neck Fractures ◽  
Intraobserver Reliability ◽  
The Novel ◽  
Significance Level ◽  
Novel Method ◽  
Geometric Technique ◽  
The Right

Background In elderly patients, displaced femoral neck fractures are mostly treated by arthroplasty; however for younger patients (<50 years), open reduction and internal fixation is considered the gold standard approach. Despite there being no consensus on the specific procedure, everyday clinical practice in a level I trauma center has shown that postoperative maltorsion after internal fixation of femoral neck fractures can have a significantly worse impact on mobilization and outcome. Different methods for measurement of malrotations are reported in literature. However, any reported method for the assessment of a shaft malrotation in the femur does not work here. In femoral neck fractures, the pointer function of the femoral neck, which is absolutely essential for these techniques, is lost and cannot be set in relation to the condylar plane. These circumstances are not addressed in literature thus far. Therefore, we propose here a novel method to fill this diagnostic gap. Methods and findings Three investigators (1 orthopaedic surgeons and 2 radiologists) measured the torsion of 20 legs on 10 patients using the Jarret method and a new geometric technique. To determine the intraobserver reliability the torsional angles were calculated again after 3 months. We applied a new geometric technique, without the need to include the femoral condyles in the measurement, to directly measure the angulation. For torsional difference, the interrater reliability -ICC (interclass correlation) between all investigators was 0.887 (good) (significance level: 95%CI, 0.668–0.969; p<0.001), by using the method of Jarret et al. and 0.933 (good) for the novel technique (significance level: 95%CI, 0.802–0.982; p<0.001). If the examinations are classified according to the patient side, our data show that for established methods, an ICC between the examiners on the right lower extremity is 0.978 (good) (95%CI, 0.936–0.994; p<0.001) and that on the left extremity is 0.955 (good) (95%CI, 0.867–0.988; p<0.001). Comparing with the new method, the right side assumes an ICC of 0.971 (good) (95%CI, 0.914–0.992; p<0.001), while the left side assumes an ICC of 0.910 (good) (95%CI, 0,736–0.976; p<0.001). When it comes to the intraobserver reliability, the measured cohort shows a significant better ICC for the novel method compared to Jarrett et al, with 0.907 respectively 0.786 for comparison in torsional differences. Conclusion The established methods may fail in assessing this special aspect of malrotation after femoral neck fractures. Here, the method presented results in a significant difference between the injured and uninjured side and shows significant differences in results compared to conventional measurement methods. The inter- and intraobserver reliability determined in this study is excellent and even higher in the assessment of torsional differences than the established method. We believe that the measurement method presented in this study is a useful tool to objectify the postoperative deformities in this area and making therapy recommendations in the future.

216 Fix or Replace: Is Internal Fixation Still A Viable Option in The Elderly with Un-Displaced Intracapsular Femoral Neck Fractures?

2021 ◽  
Vol 108 (Supplement_6) ◽  
Author(s):  
R Morris ◽  
A Krishna ◽  
H Hamid ◽  
M Chawda ◽  
H Mumtaz
Keyword(s):  
Femoral Neck ◽  
Internal Fixation ◽  
Revision Surgery ◽  
Retrospective Review ◽  
The Elderly ◽  
Femoral Neck Fractures ◽  
Type I ◽  
Cannulated Screws ◽  
Viable Option ◽  
Displaced Femoral Neck Fractures

Abstract Aim The treatment of impacted or un-displaced femoral neck fractures in the elderly osteoporotic patient is still largely debated, with arthroplasty versus internal fixation two surgical options1. Our aim was to retrospectively review patients over the age of 80 with un-displaced intracapsular hip fractures who had undergone internal fixation and assess their rate of mortality and revision surgery. Method We conducted a retrospective review of all patients with femoral neck fractures over a 4-year period between January 2015 to December 2018. We refined this to only patients over the age of 80 with un-displaced intracapsular femoral neck fractures fixed with cannulated screws. We noted their mental and mobility status, their follow-up attendance over 3 years, their mortality and rate of revision surgery. Results There were a total of 1232 femoral neck fractures in a 4-year period. Of these, 37 were &gt;80 with un-displaced intracapsular femoral neck fractures, with 23 fixed with cannulated screws and 14 with a Dynamic Hip Screw. Mean age – 85, M:F (1:4.75). All patients were either Garden Classification Type I or II. 4% had cognitive impairment. All patients were independently mobile. 83% were followed up for 3 years, with 1 patient (4%) undergoing revision surgery 3 years following cannulated screw fixation. The 30-day mortality rate was 5%. Conclusions The treatment choice for un-displaced intracapsular femoral neck fractures in the elderly remains debateable. Our retrospective review shows that the rate of re-operation is low in patients who have undergone fixation with cannulated screws and so this remains a viable option.

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.

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