scholarly journals The impact of stem fixation method on Vancouver Type B1 periprosthetic femoral fracture management

SICOT-J ◽  
2022 ◽  
Vol 8 ◽  
pp. 1
Author(s):  
Katherine Wang ◽  
Eustathios Kenanidis ◽  
Zakareya Gamie ◽  
Khurram Suleman ◽  
Mark Miodownik ◽  
...  
Keyword(s):  
Strain Distribution ◽  
Hip Prosthesis ◽  
Mechanical Strain ◽  
Femoral Fractures ◽  
Fixation Method ◽  
Periprosthetic Femoral Fracture ◽  
Periprosthetic Femoral Fractures ◽  
Fracture Management ◽  
The Impact ◽  
Laboratory Models

Introduction: Our understanding of the impact of the stem fixation method in total hip arthroplasty (THA) on the subsequent management of periprosthetic femoral fractures (PFF) is still limited. This study aimed to investigate and quantify the effect of the stem fixation method, i.e., cemented vs. uncemented THA, on the management of Vancouver Type B1 periprosthetic femoral fractures with the same plate. Methods: Eight laboratory models of synthetic femora were divided into two groups and implanted with either a cemented or uncemented hip prosthesis. The overall stiffness and strain distribution were measured under an anatomical one-legged stance. All eight specimens underwent an osteotomy to simulate Vancouver type B1 PFF’s. Fractures were then fixed using the same extramedullary plate and screws. The same measurements and fracture movement were taken under the same loading conditions. Results: Highlighted that the uncemented THA and PFF fixation constructs had a lower overall stiffness. Subsequently, the mechanical strain on the fracture plate for the uncemented construct was higher compared to the cemented constructs. Conclusion: PFF fixation of a Vancouver type B1 fracture using a plate may have a higher risk of failure in uncemented THAs.

scholarly journals Atypical periprosthetic femoral fracture associated with long-term bisphosphonate therapy

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Dávid Dózsai ◽  
Tamás Ecseri ◽  
István Csonka ◽  
István Gárgyán ◽  
Péter Doró ◽  
...  
Keyword(s):  
Femoral Fracture ◽  
Case Reports ◽  
Femoral Stem ◽  
Femoral Fractures ◽  
Atypical Femoral Fracture ◽  
Periprosthetic Fractures ◽  
Periprosthetic Femoral Fracture ◽  
Mineral Research ◽  
Periprosthetic Femoral Fractures

Abstract Background Atypical femoral fracture is one of the many complications after the long-term use of bisphosphonates. The American Society for Bone and Mineral Research has officially excluded periprosthetic femoral fractures (PFFs) from the definition of atypical femoral fractures (AFFs). Several case reports found that PFFs can occur with characteristics similar to those of AFFs. The purpose of our study was to evaluate the proportion of atypical fractures among Vancouver type B1 fractures, and to determine the association between the long-term use of bisphosphonates and the occurrence of atypical periprosthetic femoral fractures (APFFs). Methods In this retrospective study, we reviewed 41 patients with Vancouver type B1 periprosthetic fractures between January 1, 2011 and December 31, 2018. We classified them into two groups, namely atypical and typical PFFs, based on the fracture morphology. We noted the proportion of atypical periprosthetic fractures among B1 fractures and identified risk factors. Results Among the 41 PFFs, 5 (13%) fractures were classified as atypical PFF based on the radiological characteristics. The longer duration of bisphosphonate use was probably the only independent risk factor that significantly increases the occurrence of APFF (p = 0.03, 0.08 (CI 0.008 – 0.16)). There were no significant differences in age, gender, body mass index, comorbidities, corticosteroid use, positioning of the femoral stem, the method of fixation (cemented or cementless) and time lapse from before the primary prosthesis implantation to the PFF in the development of atypical fracture type. Conclusions There seems to be a correlation between the long-term intake of bisphosphonates and the atypical periprosthetic fracture. Atypical femoral fracture can also occur in the periprosthetic form. Trial registration Study number: 22/2019-SZTE, http://www.klinikaikutatas.hu/hu/kutatasetika/jovahagyott-vizsgalatok-koezerdeku-adatai/category/25-jovahagyott-vizsgalatok-kozerdeku-adatai-rkeb-2019.html?download=985:22-2019.

scholarly journals Midterm results of consecutive periprosthetic femoral fractures Vancouver type A and B

2016 ◽  
Vol 6 (3) ◽  
Author(s):  
Klemens Trieb ◽  
Rainer Fiala ◽  
Christian Briglauer
Keyword(s):  
Femoral Fractures ◽  
Type A ◽  
Periprosthetic Femoral Fracture ◽  
Type B ◽  
Single Center ◽  
Midterm Results ◽  
Periprosthetic Femoral Fractures ◽  
Multimorbid Patients ◽  
Lost To Follow Up

Surgical treatment of periprosthetic femoral fractures has a high complication and mortality rate of more than 10%. The aim of this study is to report the outcome of a consecutive single center patient group. Thirty-four consecutive patients (mean age 81.2+/-8.5 years, 14 male, 20 female) with a periprosthetic femoral fracture Vancouver type A (n=5) or type B (n=29) were followed-up after 43.2 months, none of the patients were lost to follow- up. Nineteen of the patients were treated through change of the stem and cerclage fixation, five by plates and ten by cerclage cables. One successfully treated infection was observed. No further complications have been reported peri- or postoperatively, therefore resulting in 2.9% overall complication rate. These results demonstrate that precisely selected revision surgery protocol following periprosthetic femoral fractures within elderly multimorbid patients may lead to beneficial outcomes at a low risk of complications.

Periprosthetic atypical femoral fractures exist and are associated with duration of bisphosphonate therapy

2019 ◽  
Vol 101-B (10) ◽  
pp. 1285-1291 ◽  
Author(s):  
Samuel A. MacKenzie ◽  
Richard T. Ng ◽  
Gorden Snowden ◽  
Matilda F. R. Powell-Bowns ◽  
Andrew D. Duckworth ◽  
...  
Keyword(s):  
Multivariate Analysis ◽  
Independent Predictor ◽  
Femoral Fractures ◽  
Bisphosphonate Therapy ◽  
Periprosthetic Fractures ◽  
Complication Rates ◽  
Atypical Femoral Fractures ◽  
Female Patients ◽  
Periprosthetic Femoral Fractures ◽  
Fracture Management

Aims Currently, periprosthetic fractures are excluded from the American Society for Bone and Mineral Research (ASBMR) definition of atypical femoral fracture (AFFs). This study aims to report on a series of periprosthetic femoral fractures (PFFs) that otherwise meet the criteria for AFFs. Secondary aims were to identify predictors of periprosthetic atypical femoral fractures (PAFFs) and quantify the complications of treatment. Patients and Methods This was a retrospective case control study of consecutive patients with periprosthetic femoral fractures between 2007 and 2017. Two observers identified 16 PAFF cases (mean age 73.9 years (44 to 88), 14 female patients) and 17 typical periprosthetic fractures in patients on bisphosphonate therapy as controls (mean age 80.7 years (60 to 86, 13 female patients). Univariate and multivariate analysis was performed to identify predictors of PAFF. Management and complications were recorded. Results Interobserver agreement for the PAFF classification was excellent (kappa = 0.944; p < 0.001). On univariate analysis compared with controls, patients with PAFFs had higher mean body mass indices (28.6 kg/m2 (sd 8.9) vs 21.5 kg/m2 (sd 3.3); p = 0.009), longer durations of bisphosphonate therapy (median 5.5 years (IQR 3.2 to 10.6) vs 2.4 years (IQR 1.0 to 6.4); p = 0.04), and were less likely to be on alendronate (50% vs 94%; p = 0.02) with an indication of secondary osteoporosis (19% vs 0%; p = 0.049). Duration of bisphosphonate therapy was an independent predictor of PAFF on multivariate analysis (R2 = 0.733; p = 0.05). Following primary fracture management, complication rates were higher in PAFFs (9/16, 56%) than controls (5/17, 29%; p = 0.178) with a relative risk of any complication following PAFF of 1.71 (95% confidence interval (CI) 0.77 to 3.8) and of reoperation 2.56 (95% CI 1.3 to 5.2). Conclusion AFFs do occur in association with prostheses. Longer duration of bisphosphonate therapy is an independent predictor of PAFF. Complication rates are higher following PAFFs compared with typical PFFs, particularly of reoperation and infection. Cite this article: Bone Joint J 2019;101-B:1285–1291

scholarly journals Management of type B2 and B3 post-operative proximal periprosthetic femoral fractures, Oghara experience

2021 ◽  
Vol 9 (1) ◽  
pp. 52-60
Author(s):  
R.E.T. Enemudo ◽  
E.O. Edomwonyi ◽  
D.O. Odatuwa-Omagbemi ◽  
A.T. Obumse ◽  
M.M. Awa
Keyword(s):  
Femoral Fracture ◽  
Hip Prosthesis ◽  
Hip Dislocation ◽  
Femoral Fractures ◽  
University Teaching ◽  
Harris Hip Score ◽  
Periprosthetic Femoral Fracture ◽  
Vancouver Classification ◽  
Duration Of Surgery

Objective: To report the outcome of treatment of Types B2 and B3 Post- operative Periprosthetic proximal femoral fracture (PPFF) in four patients treated in Delta State University Teaching Hospital, Oghara, Delta State, using Vancouver classification of Duncan and Masri. Methodology: A retrospective study of four cases managed in this hospital. Information retrieved from case notes were sex, age, duration of prosthesis, treatment given, complications and outcome of treatment. Result: Atotal of 4 patients were reviewed in the study, 2 males and 2 females with a M: F of 1: 1. Duration of the implant before treatment was 5-12 years (mean of 8.3years). Age range was 60-83years (mean of 67.5 years). Two patients had Type B2 and two had Type B3. Average intraoperative blood loss was 1 litre. Duration of surgery was 3-4 hours. Duration of hospital stay was between 3 weeks and 5 months. The complications seen were primary haemorrhage, wound infection, hip dislocation and pulmonaryembolism. The outcome was good for 3 patients and fair in 1, using Harris Hip Score. Conclusion:Vancouver classification of Duncan and Masri is effective in the treatment of PPFF. Key words; Periprosthetic femoral fracture, Long stem hip prosthesis, Vancouver classification, osteolysis.

Incidence and demographics of 1751 surgically treated periprosthetic femoral fractures around a primary hip prosthesis

2018 ◽  
Vol 29 (3) ◽  
pp. 282-288 ◽  
Author(s):  
Georgios Chatziagorou ◽  
Hans Lindahl ◽  
Göran Garellick ◽  
Johan Kärrholm
Keyword(s):  
Hip Prosthesis ◽  
Femoral Fractures ◽  
Observer Variation ◽  
Inaccurate Information ◽  
Periprosthetic Femoral Fractures ◽  
Registration Rate ◽  
National Patient ◽  
Register Studies ◽  
Type C ◽  
Fracture Types

Introduction: Periprosthetic femoral fractures (PPFF), treated surgically, have been recorded in the Swedish Hip Arthroplasty Register (SHAR) since 1979. It is postulated that fractures treated with other methods other than stem revision have a lower registration rate, which may lead to incomplete registry data and thus, inaccurate information. We collected all PPFFs surgically treated in Sweden between 2001 and 2011 with the purpose of studying the annual incidence, demographics and distribution of fracture types with regard to type of fixation. Methods: Data was linked between the SHAR and the National Patient Register (NPR) in order to detect even those PPFFs not reported to the SHAR. Fractures were classified according to the Vancouver classification system, based on information collected from the medical charts. This procedure was validated with observer variation analysis compared to fracture classification based on radiographs. In total 1751 first-time PPFFs around primary conventional stems were included. Results: The incidence of PPFF increased from about 1.0 per 1000 primary THRs to 1.4. Vancouver type C fractures (37% of all fractures) were more common than previously reported, and more common in cemented than in uncemented stems. The 3 most common stem designs involved were Exeter polished, Lubinus SPII, and Charnley (66.3% of all stems), partly reflecting their occurrence in the Swedish THR population. Discussion: The incidence of PPFFs has increased in Sweden during the period 2001 to 2011. The improved reporting of type C fractures, after data-linking, revealed an almost 4 times higher incidence compared to previous register studies in Sweden.

Factors influencing periprosthetic femoral fracture risk

2021 ◽  
Vol 103-B (4) ◽  
pp. 650-658
Author(s):  
Tobias Konow ◽  
Johanna Baetz ◽  
Oliver Melsheimer ◽  
Alexander Grimberg ◽  
Michael Morlock
Keyword(s):  
Fracture Risk ◽  
Revision Arthroplasty ◽  
Femoral Fractures ◽  
Registry Data ◽  
Annual Reports ◽  
Fixation Method ◽  
Periprosthetic Femoral Fracture ◽  
Ageing Population ◽  
Surgical Volume ◽  
Primary Indication

Aims Periprosthetic femoral fractures (PPF) are a serious complication of total hip arthroplasty (THA) and are becoming an increasingly common indication for revision arthroplasty with the ageing population. This study aimed to identify potential risk factors for PPF based on an analysis of registry data. Methods Cases recorded with PPF as the primary indication for revision arthroplasty in the German Arthroplasty Registry (Endoprothesenregister Deutschland (EPRD)), as well as those classified as having a PPF according to the International Classification of Diseases (ICD) codes in patients’ insurance records were identified from the complete datasets of 249,639 registered primary hip arthroplasties in the EPRD and included in the analysis. Results The incidence of PPFs was higher (24.6%; 1,483) than reported in EPRD annual reports listing PPF as the main reason for revision (10.9%; 654). The majority of fractures occurred intraoperatively and were directly related to the implantation process. Patients who were elderly, female, or had comorbidities were at higher risk of PPFs (p < 0.001). German hospitals with a surgical volume of < 300 primary procedures per year had a higher rate of PPFs (p < 0.001). The use of cemented and collared prostheses had a lower fracture risk PPF compared to uncemented and collarless components, respectively (both p < 0.001). Collared prostheses reduced the risk of PPF irrespective of the fixation method and hospital’s surgical volume. Conclusion The high proportion of intraoperative fractures emphasises the need to improve surgeon training and surgical technique. Registry data should be interpreted with caution because of potential differences in coding standards between institutions. Cite this article: Bone Joint J 2021;103-B(4):650–658.

scholarly journals Administrative Coding Methods Impact Surgical Site Infection Rates

2020 ◽  
Vol 41 (S1) ◽  
pp. s111-s112
Author(s):  
Mohammed Alsuhaibani ◽  
Mohammed Alzunitan ◽  
Kyle Jenn ◽  
Daniel Diekema ◽  
Michael Edmond ◽  
...  
Keyword(s):  
Cesarean Section ◽  
Surgical Procedures ◽  
Hip Prosthesis ◽  
Knee Prosthesis ◽  
Surgical Site Infections ◽  
Fold Increase ◽  
Abdominal Hysterectomy ◽  
Absolute Difference ◽  
Coding Method ◽  
The Impact

Background: Surveillance for surgical site infections (SSI) is recommended by the CDC. Currently, colon and abdominal hysterectomy SSI rates are publicly available and impact hospital reimbursement. However, the CDC NHSN allows surgical procedures to be abstracted based on International Classification of Diseases, Tenth Revision (ICD-10) or current procedural terminology (CPT) codes. We assessed the impact of using ICD and/or CPT codes on the number of cases abstracted and SSI rates. Methods: We retrieved administrative codes (ICD and/or CPT) for procedures performed at the University of Iowa Hospitals & Clinics over 1 year: October 2018–September 2019. We included 10 procedure types: colon, hysterectomy, cesarean section, breast, cardiac, craniotomy, spinal fusion, laminectomy, hip prosthesis, and knee prosthesis surgeries. We then calculated the number of procedures that would be abstracted if we used different permutations in administration codes: (1) ICD codes only, (2) CPT codes only, (3) both ICD and CPT codes, and (4) at least 1 code from either ICD or CPT. We then calculated the impact on SSI rates based on any of the 4 coding permutations. Results: In total, 9,583 surgical procedures and 180 SSIs were detected during the study period using the fourth method (ICD or CPT codes). Denominators varied according to procedure type and coding method used. The number of procedures abstracted for breast surgery had a >10-fold difference if reported based on ICD only versus ICD or CPT codes (104 vs 1,109). Hip prosthesis had the lowest variation (638 vs 767). For SSI rates, cesarean section showed almost a 3-fold increment (2.6% when using ICD only to 7.32% with both ICD & CPT), whereas abdominal hysterectomy showed nearly a 2-fold increase (1.14% when using CPT only to 2.22% with both ICD & CPT codes). However, SSI rates remained fairly similar for craniotomy (0.14% absolute difference), hip prosthesis (0.24% absolute difference), and colon (0.09% absolute difference) despite differences in the number of abstracted procedures and coding methods. Conclusions: Denominators and SSI rates vary depending on the coding method used. Variations in the number of procedures abstracted and their subsequent impact on SSI rates were not predictable. Variations in coding methods used by hospitals could impact interhospital comparisons and benchmarking, potentially leading to disparities in public reporting and hospital penalties.Funding: NoneDisclosures: None

scholarly journals Finite element analysis of double‐plate fixation using reversed locking compression‐distal femoral plates for Vancouver B1 periprosthetic femoral fractures

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Daisuke Takahashi ◽  
Yoshihiro Noyama ◽  
Tsuyoshi Asano ◽  
Tomohiro Shimizu ◽  
Tohru Irie ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Plate Fixation ◽  
Weight Bearing ◽  
Femoral Fractures ◽  
Full Weight Bearing ◽  
Loading Test ◽  
Lateral Plate ◽  
Element Analysis ◽  
Periprosthetic Femoral Fractures

Abstract Background Internal fixation is recommended for treating Vancouver B1 periprosthetic femoral fractures. Although several fixation procedures have been developed with high fixation stability and union rates, long-term weight-bearing constructs are still lacking. Therefore, the aim of the present study was to evaluate the stability of a double-plate procedure using reversed contralateral locking compression-distal femoral plates for fixation of Vancouver B1 periprosthetic femoral fractures under full weight-bearing. Methods Single- and double-plate fixation procedures for locking compression-distal femoral plates were analysed under an axial load of 1,500 N by finite element analysis and biomechanical loading tests. A vertical loading test was performed to the prosthetic head, and the displacements and strains were calculated based on load-displacement and load-strain curves generated by the static compression tests. Results The finite element analysis revealed that double-plate fixation significantly reduced stress concentration at the lateral plate place on the fracture site. Under full weight-bearing, the maximum von Mises stress in the lateral plate was 268 MPa. On the other hand, the maximum stress in the single-plating method occurred at the defect level of the femur with a maximum stress value of 1,303 MPa. The principal strains of single- and double-plate fixation were 0.63 % and 0.058 %, respectively. Consistently, in the axial loading test, the strain values at a 1,500 N loading of the single- and double-plate fixation methods were 1,274.60 ± 11.53 and 317.33 ± 8.03 (× 10− 6), respectively. Conclusions The present study suggests that dual-plate fixation with reversed locking compression-distal femoral plates may be an excellent treatment procedure for patients with Vancouver B1 fractures, allowing for full weight-bearing in the early postoperative period.

scholarly journals Early Surgery Does Not Improve Outcomes for Patients with Periprosthetic Femoral Fractures—Results from the Registry for Geriatric Trauma of the German Trauma Society

Medicina ◽  
2021 ◽  
Vol 57 (6) ◽  
pp. 517
Author(s):  
Christopher Bliemel ◽  
Katherine Rascher ◽  
Tom Knauf ◽  
Juliana Hack ◽  
Daphne Eschbach ◽  
...  
Keyword(s):  
Surgical Treatment ◽  
Mortality Rate ◽  
Femoral Fractures ◽  
Geriatric Trauma ◽  
Outcome Parameters ◽  
Periprosthetic Femoral Fractures ◽  
Trauma Society ◽  
Eq5d Index ◽  
Early Surgical Treatment

Background and Objectives: Appropriate timing of surgery for periprosthetic femoral fractures (PFFs) in geriatric patients remains unclear. Data from a large international geriatric trauma register were analyzed to examine the outcome of patients with PFF with respect to the timing of surgical stabilization. Materials and Methods: The Registry for Geriatric Trauma of the German Trauma Society (Deutsche Gesellschaft für Unfallchirurgie (DGU)) (ATR-DGU) was analyzed. Patients treated surgically for PFF were included in this analysis. As outcome parameters, in-house mortality rate and mortality at the 120-day follow-up as well as mobility, the EQ5D index score and reoperation rate were analyzed in relation to early (<48 h) or delayed (≥48 h) surgical stabilization. Results: A total of 1178 datasets met the inclusion criteria; 665 fractures were treated with osteosynthesis (56.4%), and 513 fractures were treated by implant change (43.5%). In contrast to the osteosynthesis group, the group with implant changes underwent delayed surgical treatment more often. Multivariate logistic regression analysis of mortality rate (p = 0.310), walking ability (p = 0.239) and EQ5D index after seven days (p = 0.812) revealed no significant differences between early (<48 h) and delayed (≥48 h) surgical stabilization. These items remained insignificant at the follow-up as well. However, the odds of requiring a reoperation within 120 days were significantly higher for delayed surgical treatment (OR: 1.86; p = 0.003). Conclusions: Early surgical treatment did not lead to decreased mortality rates in the acute phase or in the midterm. Except for the rate of reoperation, all other outcome parameters remained unaffected. Nevertheless, for most patients, early surgical treatment should be the goal, so as to achieve early mobilization and avoid secondary nonsurgical complications. If early stabilization is not possible, it can be assumed that orthogeriatric co-management will help protect these patients from further harm.

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