Preliminary Mechanical Test of Proximal Femur Reinforcement With Cemented X-Shaped Pmma

Freitas, Anderson; Camargo, Welvis Soares; Aquino, Rubén Jeri; Neto, Vincenzo Giordano; Bonavides, Aluízio Fernandes; Shimano, Antonio Carlos

doi:10.1590/1413-785220182604187691

Cited by 2 publications

(2 citation statements)

References 19 publications

(21 reference statements)

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“…A total of 60% of studies embedded their specimen in the popular Hayes‐fall (or Courtney‐fall) configuration, with the femoral neck at 15° anteversion and the shaft at 10° to the horizontal 27 . We found little agreement in how studies represented soft tissue over the greater trochanter; authors used approaches like custom‐shaped bone cement, 26,28 a rubber mat, 16 or silicone 15,29,30 …”

Section: Resultsmentioning

confidence: 96%

“…27 We found little agreement in how studies represented soft tissue over the greater trochanter; authors used approaches like custom-shaped bone cement, 26,28 a rubber mat, 16 or silicone. 15,29,30 Measured outcomes varied across studies but tended to use comparative measures like change in fracture load and energy as primary end points (Table S1). When compared to maximum failure loads in the control group, augmentations resulted in femurs ranging from 58% weaker (IM nailing 20 ) or 82% stronger (PMMA injections 31 ).…”

Section: Resultsmentioning

confidence: 99%

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Evaluating femoral augmentation to prevent geriatric hip fracture: A scoping review of experimental methods

Bliven

Fung

Cripton

et al. 2023

Journal Orthopaedic Research

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Various femoral augmentation designs have been investigated over the past decade for the prevention of geriatric hip fracture. The experimental methods used to evaluate the efficacy of these augmentations have not been critically evaluated or compared in terms of biofidelity, robustness, or ease of application. Such parameters have significant relevance in characterizing future clinical success. In this study we aimed to use a scoping review to summarize the experimental studies that evaluate femoral augmentation approaches, and critically evaluate commonly applied protocols and identify areas for concordance with the clinical situation. We conducted a literature search targeting studies that used experimental test methods to evaluate femoral augmentation to prevent geriatric fragility fracture. A total of 25 studies met the eligibility criteria. The most commonly investigated augmentation to date is the injection of bone cement or another material that cured in situ, and a popular subsequent method for biomechanical evaluation was to load the augmented proximal femur until fracture in a sideways fall configuration. We noted limitations in the clinical relevance of sideways fall scenarios being modeled and large variance in the concordance of many of the studies identified. Our review brings about recommendations for enhancing the fidelity of experimental methods modeling clinical sideways falls, which include an improved representation of soft tissue effects, using outcome metrics beyond load‐to‐failure, and applying loads inertially. Effective augmentations are encouraging for their potential to reduce the burden of hip fracture; however, the likelihood of this success is only as strong as the methods used in their evaluation.

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Section: Resultsmentioning

confidence: 96%