Femoroplasty – augmentation of the proximal femur with a composite bone cement – feasibility, biomechanical properties and osteosynthesis potential

Beckmann, Johannes; Ferguson, Stephen J.; Gebauer, Matthias; Luering, Christian M.; Gasser, B.; Heini, Paul

doi:10.1016/j.medengphy.2006.08.006

Cited by 73 publications

(110 citation statements)

References 49 publications

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“…3,6,7 Analogous to vertebroplasty, cement-augmentation of the proximal femur, femoroplasty, can reinforce osteoporotic bones. 8 This procedure is still not yet very much used and stimulated by orthopedic society, but most of the studies about this method are in vitro, and there it has proven to reduce the risk of hip fractures, and should not be underestimated.…”

Section: Can Be the Cement Augmentation An Improvement Methods Of Prevmentioning

confidence: 99%

“…8,9 In consideration to the importance of this subject, the authors present a literature review related to prevention of the fractures of the hip, presenting data in order to encourage the possibility of better results with this scientific development and ensuring this big step in the change of the evolution of fractures of the proximal femur in elderly patients.…”

Section: Can Be the Cement Augmentation An Improvement Methods Of Prevmentioning

confidence: 99%

See 1 more Smart Citation

Can be the cement augmentation na improvement method of preventing hip fractures in osteoporotic patients?

Freitas¹,

Neri²,

Neto³

et al. 2017

Geriatr., Gerontol. Aging

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Section: Can Be the Cement Augmentation An Improvement Methods Of Prevmentioning

confidence: 99%

Section: Can Be the Cement Augmentation An Improvement Methods Of Prevmentioning

confidence: 99%

Can be the cement augmentation na improvement method of preventing hip fractures in osteoporotic patients?

Freitas¹,

Neri²,

Neto³

et al. 2017

Geriatr., Gerontol. Aging

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“…We formulate the reconstruction task as a global optimization problem that minimizes the following objective function, which describes the disparity between X-Ray images and Digitally Reconstructed Radiographs (DRRs) of a deformable model: (2) where, (3) and, (4) and, (5) and, . The log x-ray intensity image.…”

Section: Sxmac Algorithmmentioning

confidence: 99%

“…However, such information is not always available, especially if the object is highly deformable or its shape is created and/or substantially modified during the procedure. Examples include surgical procedures for injecting cement into bones, such as vertebroplasty [2], sacroplasty [3], and femoroplasty [4].…”

Section: Introductionmentioning

confidence: 99%

A Multi-view Active Contour Method for Bone Cement Reconstruction from C-Arm X-Ray Images

Lucas

Otake

Armand

et al. 2011

Information Processing in Computer-Assisted Interventions

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Abstract.A novel algorithm is presented to segment and reconstruct injected bone cement from a sparse set of X-Ray images acquired at arbitrary poses. The Sparse X-Ray Multi-view Active Contour (SxMAC -pronounced "smack") can (1) reconstruct objects for which the background partially occludes the object in X-Ray images, (2) use X-Ray images acquired on a non-circular trajectory, and (3) incorporate prior CT information. The algorithm's inputs are pre-processed X-Ray images, their associated pose information, and prior CT, if available. The algorithm initiates automated reconstruction using visual hull computation from a sparse number of x-ray images. It then improves the accuracy of the reconstruction by optimizing a geodesic active contour. A cadaver experiment demonstrates SxMAC's ability to reconstruct high contrast bone cement that has been injected into a femur and achieve sub-millimeter accuracy with 4 images.

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“…Although this procedure has yet to be tested clinically, experimental results [1] [2] show that in reinforced cadaveric femurs, the maximum load applied prior to fracture was increased by 43% relative to the native bone, which suggests that the femoroplasty has the potential to reduce the risk of fracture in an osteoporotic hip. The objective of this treatment is to reduce the risk of osteoporotic fracture, however, without precise geometrical and mechanical planning based on analysis of the structural strength and stress distributions, adding augmentation material may have the potential downside of developing stress concentrations between augmented and native bone [3].…”

Section: Introductionmentioning

confidence: 99%

An image-guided femoroplasty system: development and initial cadaver studies

et al. 2010

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This paper describes the development and initial cadaver studies using a prototype image-guided surgery system for femoroplasty, which is a potential alternative treatment for reducing fracture risk in patients with severe osteoporosis. Our goal is to develop an integrated surgical guidance system that will allow surgeons to augment the femur using patient-specific biomechanical planning and intraoperative analysis tools. This paper focuses on the intraoperative module, which provides real-time navigation of an injection device and estimates the distribution of the injected material relative to the preoperative plan. Patient registration is performed using intensity-based 2D/3D registration of X-ray images and preoperative CT data. To co-register intraoperative X-ray images and optical tracker coordinates, we integrated a custom optically-tracked fluoroscope fiducial allowing real-time visualization of the injection device with respect to the patient's femur. During the procedure, X-ray images were acquired to estimate the 3D distribution of the injected augmentation material (e.g. bone cement). Based on the injection progress, the injection plan could be adjusted if needed to achieve optimal distribution. In phantom experiments, the average target registration error at the center of the femoral head was 1.4 mm and the rotational error was 0.8 degrees when two images were used. Three cadaveric studies demonstrated efficacy of the navigation system. Our preliminary simulation study of the 3D shape reconstruction algorithm demonstrated that the 3D distribution of the augmentation material could be estimated within 12% error from six X-ray images.

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Femoroplasty – augmentation of the proximal femur with a composite bone cement – feasibility, biomechanical properties and osteosynthesis potential

Cited by 73 publications

References 49 publications

Can be the cement augmentation na improvement method of preventing hip fractures in osteoporotic patients?

Can be the cement augmentation na improvement method of preventing hip fractures in osteoporotic patients?

A Multi-view Active Contour Method for Bone Cement Reconstruction from C-Arm X-Ray Images

An image-guided femoroplasty system: development and initial cadaver studies

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