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 ◽  
...  

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

2017 ◽  
Author(s):  
Edouard Mills ◽  
Pat Forbes ◽  
Michael Yee ◽  
Jeremy Cox ◽  
Alexander N Comninos

Author(s):  
Winnie A. Mar

Chapter 117 discusses common medication-induced changes of the musculoskeletal system. The effect of corticosteroids on the musculoskeletal system, including osteoporosis and osteonecrosis, is discussed. Corticosteroids decrease osteoblastic activity, stimulate bone resorption, and decrease intestinal absorption of calcium. Complications of bisphosphonate therapy such as atypical femoral fractures and osteonecrosis of the jaw are reviewed. Myopathies and tendon pathologies are briefly discussed, as well as bony changes potentially seen with long-term voriconazole treatment. For osteoporosis, DXA scan is the gold standard, whereas radiography is usually the first imaging modality performed in patients on voriconazole therapy who present with pain.


2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Dávid Dózsai ◽  
Tamás Ecseri ◽  
István Csonka ◽  
István Gárgyán ◽  
Péter Doró ◽  
...  

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.


Bone ◽  
2013 ◽  
Vol 56 (2) ◽  
pp. 426-431 ◽  
Author(s):  
Paola Franceschetti ◽  
Marta Bondanelli ◽  
Gaetano Caruso ◽  
Maria Rosaria Ambrosio ◽  
Vincenzo Lorusso ◽  
...  

2014 ◽  
Vol 21 (5) ◽  
pp. 557-562 ◽  
Author(s):  
Matthew Rheinboldt ◽  
Derrick Harper ◽  
Michael Stone

EP Europace ◽  
2019 ◽  
Vol 21 (9) ◽  
pp. 1378-1384 ◽  
Author(s):  
Frank Bracke ◽  
Niels Verberkmoes ◽  
Marcel van 't Veer ◽  
Berry van Gelder

Abstract Aims Abandoned leads are often linked to complications during lead extraction, prompting pre-emptive extraction if leads become non-functional. We examined their influence on complications when extracted for device-related infection. Methods and results All patients undergoing lead extraction for device-related infection from 2006 to 2017 in our hospital were included. The primary endpoint was major complications. Out of 500 patients, 141 had abandoned leads, of whom 75% had only one abandoned lead. Median cumulative implant times were 24.2 (interquartile range 15.6–38.2) and 11.6 (5.6–17.4), respectively years with or without abandoned leads. All leads were extracted only with a femoral approach in 50.4% of patients. Mechanical rotational tools were introduced in 2014 and used in 22.2% of cases and replacing laser sheaths that were used in 5% of patients. Major complications occurred in 0.7% of patients with abandoned leads compared with 1.7% of patients with only active leads (P = 0.679). Failure to completely remove all leads was 14.9% and 6.4%, respectively with or without abandoned leads (P = 0.003), and clinical failure was 6.4% and 2.2% (P = 0.028), respectively. Procedural failure dropped to 9.2% and 5.7% (P = 0.37), respectively after the introduction of mechanical rotational tools. The only independent predictor of procedural and clinical failure in multivariate analysis was the cumulative implant duration. Conclusion Despite longer implant times, patients with abandoned leads did not have more major complications during lead extraction. Therefore, preventive extraction of non-functional leads to avoid complications at a later stage is not warranted.


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