scholarly journals A biomechanical evaluation of proximal femoral nail antirotation with respect to helical blade position in femoral head: A cadaveric study

2014 ◽  
Vol 48 (3) ◽  
pp. 343 ◽  
Author(s):  
Serkan Akcay ◽  
IsmailSafa Satoglu
Keyword(s):  
Femoral Head ◽  
Cadaveric Study ◽  
Proximal Femoral Nail ◽  
Femoral Nail ◽  
Helical Blade ◽  
Biomechanical Evaluation ◽  
Proximal Femoral Nail Antirotation

Central Head Perforation, or “Cut Through,” Caused by the Helical Blade of the Proximal Femoral Nail Antirotation

2012 ◽  
Vol 26 (8) ◽  
pp. e102-e107 ◽  
Author(s):  
Hans-Curd Frei ◽  
Thomas Hotz ◽  
Dieter Cadosch ◽  
Mark Rudin ◽  
Kurt Käch
Keyword(s):  
Proximal Femoral Nail ◽  
Femoral Nail ◽  
Helical Blade ◽  
Proximal Femoral Nail Antirotation

scholarly journals Risk factors for implant failure in reverse oblique and transverse intertrochanteric fractures treated with proximal femoral nail antirotation (PFNA)

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Youliang Hao ◽  
Zhishan Zhang ◽  
Fang Zhou ◽  
Hongquan Ji ◽  
Yun Tian ◽  
...  
Keyword(s):  
Risk Factors ◽  
Implant Failure ◽  
Proximal Femoral Nail ◽  
Intertrochanteric Fractures ◽  
Geriatric Population ◽  
Femoral Nail ◽  
Type Reduction ◽  
Helical Blade ◽  
Causes Of Mortality ◽  
Proximal Femoral Nail Antirotation

Abstract Background The incidence of intertrochanteric hip fracture is expected to increase as the global population ages. It is one of the most important causes of mortality and morbidities in the geriatric population. The incidence of reverse oblique and transverse intertrochanteric (AO/OTA 31-A3) fractures is relatively low; however, the incidence of implant failure in AO/OTA 31-A3 fractures is relatively high compared with that in AO/OTA 31-A1 and A2 fractures. To date, the risk factors for implant failure in AO/OTA 31-A3 fractures treated with proximal femoral nail antirotation (PFNA) have remained ambiguous. The purpose of this study was to identify the predictive factors of implant failure in AO/OTA 31-A3 fractures treated with PFNA. Methods The data of all patients who underwent surgery for trochanteric fractures at our institution between January 2006 and February 2018 were retrospectively reviewed. All AO/OTA 31-A3 fractures treated with PFNA were included. Logistic regression analysis of potential predictors of implant failure was performed. Potential predictors included age, sex, body mass index, fracture type, reduction method, status of posteromedial support and lateral femoral wall, reduction quality, tip-apex distance and position of the helical blade in the femoral head. Results One hundred four (9.3%) patients with AO/OTA 31-A3 fractures were identified. Forty-five patients with AO/OTA 31-A3 fractures treated with PFNA were suitable for our study. Overall, implant failure occurred in six (13.3%) of forty-five patients. Multivariate analysis identified poor reduction quality (OR, 28.70; 95% CI, 1.91–431.88; p = 0.015) and loss of posteromedial support (OR, 18.98; 95% CI, 1.40–257.08; p = 0.027) as factors associated with implant failure. Conclusions Poor reduction quality and loss of posteromedial support are predictors of implant failure in reverse oblique and transverse intertrochanteric fractures treated with PFNA.

scholarly journals Outcome of Proximal Femoral Nail Antirotation II fixation of Peritrochanteric Fracture of Femur

2020 ◽  
Vol 18 (2) ◽  
pp. 301-306
Author(s):  
Pramod Baral ◽  
Pashupati Chaudhary ◽  
Amit Bikram Shah ◽  
Deepak Banjade ◽  
Subash Chandra Jha
Keyword(s):  
Functional Outcome ◽  
Femoral Fractures ◽  
Intramedullary Fixation ◽  
Proximal Femoral Nail ◽  
Harris Hip Score ◽  
Neck Of Femur ◽  
Femoral Nail ◽  
Study Results ◽  
Helical Blade ◽  
Proximal Femoral Nail Antirotation

Background: Intramedullary fixation is biomechanically superior to extramedullary fixation for fracture of peritrochanteric region of femur in elderly which is often complicated due to associated osteoporosis. Helical blade of proximal femoral nail antirotation II has stronger purchase in the head of femur preventing rotation and cutout. This study was done to evaluate the outcome of Proximal Femoral Nail Antirotation II fixation in B.P. Koirala Institute of Health Sciences.Methods: Retrospective review of the data of 100 traumatic peritrochanteric fracture cases operated between March 2017 and March 2018 was done for study. Cases lost to follow-up, deaths and incomplete functional outcome (VAS, HHS), intraoperative and postoperative data were excluded. Total of 71 cases were included in the study. Results: Mean age of patients was 65 (+14) (range:19 to 86) years and were operated for intertrochanteric (54), subtrochanteric (16) and neck of femur (1) fractures. Trivial fall on ground was the commonest mechanism of injury (43 of 71). Mean injury to surgery time was 7 (+7) days and mean duration of hospital stay was 5.92 (+4) days. Mean blood loss during surgery was 132.61 (+21) ml and mean surgical time was 56 (+8) minutes. Mean visual analogue scale (VAS) Score was 7 at 2 weeks, 3 at 6 weeks and 1 at 12 weeks. Mean harris hip score was 80 (+10) at 6 months.Conclusions: Proximal femoral nail antirotation II is a reliable implant system to use for fixation of proximal femoral fractures with a good functional outcome and low complication rates.Keywords: Harris hip Score; helical blade; intramedullary fixation; peritrochanteric fracture; proximal femoral nail antirotation

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