Proximal femoral nail antirotation II in fixation of intertrochanteric fractures: retrospective and prospective observational study

Background: Intertrochanteric fractures occur mostly in elderly patients, and the outcome may be extremely poor if there is prolonged bed-rest. The best treatment for trochanteric fracture remains controversial. Proximal femoral nail antirotation (PFNA) II has excellent fit as the design is adapted to the anatomical situation of small statured patients also. It has a medial lateral angle of 5 degrees. It has several distal locking options viz static/dynamic. Objective of this study was to observe the operating time, blood loss and fracture union in intertrochanteric fractures treated with PFNA II from the data collected from patient’s case sheets and post-operative X-rays.Methods: 25 patients who were operated with PFNA II for unstable intertrochanteric fracture were selected using random selection and following parameters were noted from the records.Results: The mean age of the participants is 70.72±8.55 years with range from 52 years to 89 years. The mean duration was 1.98 hours ±0.66. The median duration was 2 with interquartile range from 1.5 to 2.5 hours. Mean blood loss was estimated to be 390 ml±62.78. The median blood loss was 370 ml with interquartile range from 360 to 420 ml.Conclusions: The PFNA II is an ideal implant for unstable intertrochanteric fracture since stable intramedullary fixation can be achieved with almost 100% union in the studied population.

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Functional and Radiological Outcome of Unstable Intertrochanteric Fracture in Old Age Treated with Proximal Femoral Nail Antirotation-2

JOURNAL FOR CLINICAL AND DIAGNOSTIC RESEARCH ◽

10.7860/jcdr/2021/47653.14751 ◽

2021 ◽

Author(s):

OP Jamshad ◽

Jacob Mathew ◽

Raju Karuppal

Keyword(s):

Proximal Femoral Nail ◽

Harris Hip Score ◽

Intertrochanteric Fractures ◽

Biological Reduction ◽

Neck Shaft Angle ◽

Femoral Nail ◽

Unstable Intertrochanteric Fracture ◽

Shaft Angle ◽

The Mean ◽

Proximal Femoral Nail Antirotation

Introduction: Intertrochanteric fractures are prevalent in the elderly, which leave patients with functional restrictions. Proximal Femoral Nail Antirotation-2 (PFNA) was developed to achieve better fixation strength, particularly in the presence of osteoporotic unstable intertrochanteric fractures. Aim: To evaluate the role and result of PFNA-2 in the treatment of unstable intertrochanteric fractures in geriatric patients. Materials and Methods: A prospective analytical study was conducted in 35 patients with unstable intertrochanteric fractures. They were followed-up clinically and radiologically for one year. The quality of fixation was assessed, by neck-shaft angle and Tip Apex Distance (TAD). A functional assessment was done with the Harris Hip Score (HHS). Results: The mean follow-up period was 13 months (range, 12-14). The mean age of patients was 65.6 years and the majority were female patients (62.85%). Functional results according to modified HHS were found to be excellent in 6 (17.1%) patients, good in 14 (40%) patients, fair in 12 (34.3%) patients and poor in 3 (8.6%) patients. The average HHS in this study was 81.6. Statistical analysis was performed using Statistical Package for Social Sciences (SPSS) version 16.0. Conclusion: PFNA-2 helps in achieving biological reduction and good stability which enables early mobilisation and prevention of excessive collapse. A good functional outcome could be achieved when the radiological parameters are restored, i.e., TAD <25 mm and neck-shaft angle difference <5° (compared to the opposite side).

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Finite element analysis of two cephalomedullary nails in treatment of elderly reverse obliquity intertrochanteric fractures: zimmer natural nail and proximal femoral nail antirotation-ΙΙ

Journal of Orthopaedic Surgery and Research ◽

10.1186/s13018-019-1468-3 ◽

2019 ◽

Vol 14 (1) ◽

Cited By ~ 2

Author(s):

Jian Chen ◽

Jian-xiong Ma ◽

Ying Wang ◽

Hao-hao Bai ◽

Lei Sun ◽

...

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Internal Fixation ◽

Intertrochanteric Fracture ◽

Proximal Femoral Nail ◽

Intertrochanteric Fractures ◽

Element Analysis ◽

Femoral Nail ◽

Unstable Intertrochanteric Fracture ◽

Proximal Femoral Nail Antirotation

Abstract Background More elderly patients are suffering from intertrochanteric fractures. However, the choice of internal fixation is still controversial, especially in the treatment of unstable intertrochanteric fracture; thus, previous implants continue to be improved, and new ones are being developed. The purpose of our study was to compare the biomechanical advantages between the zimmer natural nail (ZNN) and proximal femoral nail antirotation-II (PFNA-II) in the treatment of elderly reverse obliquity intertrochanteric fractures. Methods A three-dimensional finite element was applied for reverse obliquity intertrochanteric fracture models (AO31-A3.1) fixed with the ZNN or PFNA-II. The distribution, peak value and position of the von Mises stress and the displacement were the criteria for comparison between the two groups. Results The stresses of the internal fixation and femur in the ZNN model were smaller than those in the PFNA-II model, and the peak values of the two groups were 364.8 MPa and 171.8 MPa (ZNN) and 832.3 MPa and 1795.0 MPa (PFNA-II). The maximum amount of displacement of the two groups was similar, and their locations were the same, i.e., in the femoral head vertex (3.768 mm in the ZNN model and 3.713 mm in the PFNA-II model). Conclusions The displacement in the two models was similar, but the stresses in the implant and bone were reduced with the ZNN. Therefore, the ZNN implant may provide biomechanical advantages over PFNA-II in reverse obliquity intertrochanteric fractures, as shown through the finite element analysis. These findings from our study may provide a reference for the perioperative selection of internal fixations.

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AO/OTA 31A2 and 31A3 Intertrochanteric Fractures Managed by Proximal Femoral Nail Antirotation (PFNA)

10.53350/pjmhs2115102616 ◽

2021 ◽

Vol 15 (10) ◽

pp. 2616-2618

Author(s):

Zamir Hussain Tunio ◽

Rizwan Ali Jhatiyal ◽

Muhammad Azeem Akhund ◽

M. Kashif Abbasi ◽

S. Muhammad Ali ◽

...

Keyword(s):

Intertrochanteric Fracture ◽

Proximal Femoral Nail ◽

Harris Hip Score ◽

Psychiatric Disease ◽

Unstable Fracture ◽

Intertrochanteric Fractures ◽

Femoral Nail ◽

Intramedullary Device ◽

Unstable Intertrochanteric Fracture ◽

Proximal Femoral Nail Antirotation

Aim: To study the clinical and radiological outcome of unstable intertrochanteric fracture AO/OTA 31A2, 31A3 fixed by proximal femoral nail antirotation Study design: Descriptive cross sectional study. Place and duration of study: Department of Orthopedic Surgery and Traumatology, Pir Abdul Qadir Shah Jilani Institute of Medical Sciences, Gambat, Sindh from 1st January 2016 to 31st December 2019. Methodology: Forty four cases having intertrochanteric fracture AO/OTA 31A2, 31A3 with age ranging from 18 year to 55 year of either gender were selected; patients having close fracture, who were willing were included in the study, while patients older than 55 year and younger than 18 year, AO/OTA 31A1 fracture, open fracture, bilateral injuries, smoker, alcoholic, drug addicted, poly-trauma, pathological fracture and history of poor compliance, psychiatric disease were excluded. Results: There were 26(59.09%) males and 18(40.91%) females with mean age was 41.3±7.7 years. Regarding classification; AO/OTA 31A2 were 33 (75%), and 31A3 were 11 (25%). Mean time for union was 18.5±3.55 weeks. The average time of follow-up was 48.5±6.6 weeks. Harris Hip Score was excellent (90-100) in 31(70.45%), good (80-89) in 7(15.91%), fair (70-80) in 3 (6.81%) and poor (<70) in 3 (6.81%). Conclusion: Intramedullary device proximal femoral nail antirotation can be labelled as implant of choice for unstable intertrochanteric fractures AO/OTA 31A2, 31A3, with fruitful clinical and radiological outcomes, and with fewer complications. Hip Harris score was excellent-good in 86% of the patients. Key words: Proximal femoral nail antirotation (PFNA), AO/OTA 31A2, 31A3, Intertrochanteric, unstable fracture

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Osteoporotic Intertrochanteric Fractures in the Elderly Managed with Proximal Femoral Nail Antirotation-The Functional Outcome

JOURNAL FOR CLINICAL AND DIAGNOSTIC RESEARCH ◽

10.7860/jcdr/2021/42425.14499 ◽

2021 ◽

Author(s):

SPS Gill ◽

Ankit Mittal ◽

Manish Raj ◽

Satosh Singh ◽

Ajay Rajpoot ◽

...

Keyword(s):

Blood Loss ◽

Operative Time ◽

Proximal Femoral Nail ◽

Harris Hip Score ◽

Functional Evaluation ◽

Intertrochanteric Fractures ◽

Radiological Outcome ◽

Femoral Nail ◽

The Mean ◽

Proximal Femoral Nail Antirotation

Introduction: Despite recent evolution in the operating techniques and surgical implants, debate continues around the choice of implant for the management of intertrochanteric fractures of femur bone. There is a paucity of clinical data on the results with Proximal Femoral Nail Antirotation (PFNA). Aim: To evaluate the functional and radiological outcome of reduction and fixation of these fractures with PFNA. Materials and Methods: This prospective interventional study was conducted from december 2015 to november 2018. A total of 62 patients of more than 50 years of age with intertrochanteric fracture were managed with internal fixation using PFNA. All the pateints were evaluated with respect to the mean operative time, blood loss. Fluoroscopy exposure, time to union and development of any complication. The statistical analysis involved calculation of the mean and Standard Deviations (SD) of above parameters which was done using the Microsoft excel chart sheet. Functional evaluation was done using the Harris Hip Score (HHS). Results: A total of 62 patients with age ranging from 54 to 94 years (mean 78.2, SD 09.11) were evaluated. The mean duration of follow-up was 14.3 months. The average operative time, the mean blood loss and the average fluoroscopy time were 61.4 (range 45-90 minutes, SD 11.6) minutes, 103.9 (range 60-200 mL, SD 36.4) mL and 74.0 (range 41 to 98, SD 13.5) seconds respectively. About 100% union rate with the average time to union being 16.1 (SD 3.3) weeks and ranging from 12 weeks to 24 weeks was reported. Varus collapse and limb shortening >1 cm were observed in 3 patients. The average HHS at the end of study showed a mean value of 82.8 (SD 8.6) and ranged from 65 to 94 with 46 (74.2%) patients having excellent to good outcome. Conclusion: Owing to easy insertion, reduced operative time and blood loss, stable fixation, less complications and good functional and radiological outcome, PFNA can prove to be an implant of choice for the management of intertrochantric fractures of the femur.

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Dynamic Hip Screw with Trochanter-Stabilizing Plate Compared with Proximal Femoral Nail Antirotation as a Treatment for Unstable AO/OTA 31-A2 and 31-A3 Intertrochanteric Fractures

BioMed Research International ◽

10.1155/2020/1896935 ◽

2020 ◽

Vol 2020 ◽

pp. 1-7

Author(s):

Chun-Wei Fu ◽

Ji-Ying Chen ◽

Yueh-Ching Liu ◽

Kuang-Wen Liao ◽

Yung-Chang Lu

Keyword(s):

Intertrochanteric Fracture ◽

Operation Time ◽

Dynamic Hip Screw ◽

Proximal Femoral Nail ◽

Intertrochanteric Fractures ◽

Residual Pain ◽

Unstable Intertrochanteric Fracture ◽

Hip Screw ◽

Proximal Femoral Nail Antirotation ◽

Im Nailing

Background. The dynamic hip screw (DHS) with the addition of an angular stable trochanter-stabilizing plate (TSP) has been considered the ideal treatment for the unstable intertrochanteric fracture type. However, there have been few comparisons between DHS+TSP augmentation with intramedullary (IM) nailing. The aim of this retrospectively registered study was to compare the clinical outcomes of patients with the unstable type of intertrochanteric fractures treated with DHS+TSP or IM nailing (proximal femoral nail antirotation (PFNA)). Methods. From June 2013 to April 2018, 358 patients with proximal femur fracture AO/OTA type 31A2 and 31A3 treated with PFNA or DHS+TSP and followed for ≥10 months postoperatively were included. The surgical-dependent outcome evaluation included the operation time, intraoperative blood loss, postoperative decrease in hemoglobin, and blood transfusion amount. Functional status was also measured. Radiographic findings and postoperative complications were recorded and analyzed. Result. The operation time was significantly shorter in the DHS+TSP group than that in the PFNA group for both A2 and A3 fractures (A2 type: 84.0 vs.96.4 min; p<0.05; A3 type: 102.4 vs.116.1 min; p<0.05). Postoperative decrease in hemoglobin was more significant in the PFNA group than that in the DHS+TSP group for both fracture types (A2 type: −1.88 vs. −1.29 (mg/dL); p<0.05; A3 type: −1.63 vs. −1.04 (mg/dL); p<0.05). However, the patients treated with DHS+TSP had significantly more residual pain than those treated with PFNA during the final follow-up (Visual Analog Scale score, A2 type: 28.4 vs.23.2; p<0.05; A3 type: 27.5 vs.23.6; p<0.05) and complained of greater implant irritation. Conclusion. We found that DHS+TSP was associated with less operation time and less postoperative decrease in hemoglobin but more residual pain and implant irritation than those of PFNA. As a treatment for unstable intertrochanteric fracture, DHS+TSP provided ideal surgical outcomes which were not inferior to the PFNA.

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Biomechanical comparison of medial sustainable nail and proximal femoral nail antirotation in the treatment of an unstable intertrochanteric fracture

Bone and Joint Research ◽

10.1302/2046-3758.912.bjr-2020-0284.r1 ◽

2020 ◽

Vol 9 (12) ◽

pp. 840-847

Author(s):

Shaobo Nie ◽

Ming Li ◽

Hui Ji ◽

Zhirui Li ◽

Wenwen Li ◽

...

Keyword(s):

Cyclic Loading ◽

Torsional Stiffness ◽

Proximal Femoral Nail ◽

Axial Stiffness ◽

Intertrochanteric Fractures ◽

Loading Test ◽

Cyclic Loading Test ◽

Femoral Nail ◽

Unstable Intertrochanteric Fracture ◽

The Mean

Aims Restoration of proximal medial femoral support is the keystone in the treatment of intertrochanteric fractures. None of the available implants are effective in constructing the medial femoral support. Medial sustainable nail (MSN-II) is a novel cephalomedullary nail designed for this. In this study, biomechanical difference between MSN-II and proximal femoral nail anti-rotation (PFNA-II) was compared to determine whether or not MSN-II can effectively reconstruct the medial femoral support. Methods A total of 36 synthetic femur models with simulated intertrochanteric fractures without medial support (AO/OTA 31-A2.3) were assigned to two groups with 18 specimens each for stabilization with MSN-II or PFNA-II. Each group was further divided into three subgroups of six specimens according to different experimental conditions respectively as follows: axial loading test; static torsional test; and cyclic loading test. Results The mean axial stiffness, vertical displacement, and maximum failure load of MSN-II were 258.47 N/mm (SD 42.27), 2.99 mm (SD 0.56), and 4,886 N (SD 525.31), respectively, while those of PFNA-II were 170.28 N/mm (SD 64.63), 4.86 mm (SD 1.66), and 3,870.87 N (SD 552.21), respectively. The mean torsional stiffness and failure torque of MSN-II were 1.72 N m/° (SD 0.61) and 16.54 N m (SD 7.06), respectively, while those of PFNA-II were 0.61 N m/° (SD 0.39) and 6.6 N m (SD 6.65), respectively. The displacement of MSN-II in each cycle point was less than that of PFNA-II in cyclic loading test. Significantly higher stiffness and less displacement were detected in the MSN-II group (p < 0.05). Conclusion The biomechanical performance of MSN-II was better than that of PFNA-II, suggesting that MSN-II may provide more effective mechanical support in the treatment of unstable intertrochanteric fractures. Cite this article: Bone Joint Res 2020;9(12):840–847.

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Outcome of proximal femoral nail antirotation in peritrochanteric fractures: A prospective study

Asian Journal of Medical Sciences ◽

10.3126/ajms.v12i8.36401 ◽

2021 ◽

Vol 12 (8) ◽

pp. 125-129

Author(s):

Pratyenta Raj Onta ◽

Dilip C Agarwal ◽

Upendra Jung Thapa ◽

Pabin Thapa ◽

Krishna Wahegoankar ◽

...

Keyword(s):

Blood Loss ◽

Weight Bearing ◽

Invasive Procedure ◽

Proximal Femoral Nail ◽

Harris Hip Score ◽

Full Weight Bearing ◽

Femoral Nail ◽

The Mean ◽

Proximal Femoral Nail Antirotation ◽

A Prospective Study

Background: The incidence of peritrochanteric fractures are increasing worldwide. Early mobilization in these fractures prevents from other medical complications. There are many methods of treatment but the ideal method should be less invasive procedure, intramedullary device and stable fixation of fracture. Proximal femoral nail antirotation (PFNA) is biomechanically considered one of the most effective methods of treatment with promising results. Aims and Objectives: The aim of our study was to evaluate the clinical and radiological outcomes in patient who were treated with PFNA in peritrochanteric fracture. Materials and Methods: This study was a prospective study which included 37 patients, conducted in Manipal Teaching Hospital from 1st October 2019 to 30th September 2020. All the patients were clinically evaluated and detail history was obtained. After the anaesthesia clearance the patients were operated. Operating time, intraoperative blood loss and complications were noted. Postoperatively the duration of hospital stay, time of partial and full weight bearing, time for radiological union and complications were noted. At the final follow up Harris Hip Score was used for functional outcome. Results: The mean age of the patient in this study was 64 years (45-88 years). The average time to complete the surgery was 62.49 minutes (45-75 minutes) and the average blood loss was 129.32 ml (65-210 ml). Partial weight bearing was started at the mean time of 8.57 weeks (6-12 weeks) whereas full weight bearing was done at the mean of 14.43 weeks (10-20 weeks). Fracture union was seen at the average of 11.41 weeks (8-18 weeks). The mean Harris Hip score at final follow up was 84.73 (65.8-95.0) with the functional status of 35.1% excellent result, 45.9% good, 13.5% fair and 5.4% poor. Conclusion: Proximal femoral nail antirotation in peritrochanteric fracture is a good method of fixation. The procedure is easy with reduced operative time and radiation exposure. Since this is minimally invasive procedure the blood loss is very less compared to DHS or plate fixation. The patient could be mobilized early from the bed that reduced the complication of immobilization. So we strongly recommend using PFNA for fixation of peritrochanteric fracture of hip.

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Hemiarthroplasty for the Management of unstable femoral intertrochanteric fractures in elderly patients over 75 years old: a retrospective matched comparative study

10.21203/rs.3.rs-20822/v1 ◽

2020 ◽

Author(s):

Juncheng Ge ◽

Jinhui Ma ◽

Bailiang Wang ◽

Yu Zhou ◽

Debo Yue ◽

...

Keyword(s):

Blood Loss ◽

Hospital Stay ◽

Average Length ◽

Length Of Hospital Stay ◽

Proximal Femoral Nail ◽

Intertrochanteric Fractures ◽

Intraoperative Blood Loss ◽

Femoral Nail ◽

Proximal Femoral Nail Antirotation ◽

Partial Weight

Abstract Background To compare and analyze the therapeutic effect of Proximal Femoral Nail Antirotation and hemiarthroplasty on intertrochanteric fracture. Methods 45 patients with intertrochanteric fractures (17 males and 28 females) admitted to our hospital from January 2016 to January 2018 were collected. The mean age was 84.82 ± 0.73 years. All injuries were caused by falls during daily activities. Patients were divided into two groups according to the surgical method: the first group was the hemiarthroplasty group, referred to as the hemiarthroplasty group, with a total of 22 patients, and the average length of hospital stay was 13.09 ± 5.03 days. According to the improved Evans-Jensen classification [5], there were 1 cases of III, 9 cases of IV, and 12 cases of V12.The second group was the Proximal Femoral Nail Antirotation group, and the average length of hospital stay was 13.09 ± 6.97 days. According to the Evans-Jensen classification, 1 patient was III, 16 patients were IV, and 6 patients were V. Results Intraoperative blood loss was higher in the The Proximal Femoral Nail Antirotation group than in the hemiarthroplasty group(P=0.034).In the postoperative recovery of the two groups, the time from operation to partial weight-bearing of the hemiarthroplasty group was shorter than that of the PFNA group༈p༝0.000༉, and the postoperative HHS of the hemiarthroplasty group was also better than the latter (p ༝0.0005). In terms of total cost during hospitalization, the Hemiarthroplasty group was less than the PFN group(p ༝ 0.017). One year after surgery, the mortality rate increased to 34% in the PNFA group and 9% in the hemiarthroplasty group( P = 0.038), which was statistically significant. Conclusion Hemiarthroplasty for intertrochanteric fractures in the elderly can reduce intraoperative blood loss, achieve early recovery, improve survival rates, and reduce the economic burden on patients

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