Mechanical stress redistribution in the calcaneus after autologous bone harvesting

Bayod, Javier; Becerro-de-Bengoa-Vallejo, Ricardo; Iglesias, Marta Elena Losa; Doblaré, M.

doi:10.1016/j.jbiomech.2012.01.043

Cited by 29 publications

(12 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…La segmentación y reconstrucción del tejido se realizó usando el software MIMICS V. 10 de Materialize. Este modelo mantiene la morfología de los cartílagos y la fascia plantar, así como la diferenciación del hueso cortical y trabecular, lo cual generalmente es obviado por otros autores a pesar de la importancia de considerar esta diferenciación en el modelado de la mecánica ósea 24,25 .…”

Section: Modelo De Elementos Finitos Controlunclassified

“…1). Para deformar esta geometría inicial hasta una posición de carga en el momento del segundo rocker se simuló el modelo con todos los tejidos de acción pasiva que dan soporte a la bóveda plantar usando una carga de 750 N. Esta carga representa el peso completo de una persona adulta de 75kg, apoyada sobre el pie evaluado.La carga fue introducida en sentido vertical descendente, con 10 grados de inclinación como lo sugieren algunos autores 13,25 , repartida en la zona de contacto tibiaastrágalo (90%) y peroné-astrágalo (10%). Las simulaciones fueron realizadas manteniendo fijos nodos del extremo más plantar del calcáneo y bloqueando el desplazamiento sobre el eje Z (vertical) de los nodos más plantares del primer y quinto metatarsianos, simulando el efecto del suelo sobre el modelo de pie en el momento del segundo rocker de la marcha.…”

Section: Condiciones De Cargaunclassified

See 1 more Smart Citation

Efecto de la osteotomía medializante de calcáneo sobre tejidos blandos de soporte del arco plantar: un estudio computacional

Larraínzar-Garijo

Portilla

Gutiérrez-Narvarte

et al. 2019

Revista Española de Cirugía Ortopédica y Traumatología

Self Cite

View full text Add to dashboard Cite

Medializing calcaneal osteotomy forms part of the treatment options for adult acquired flat foot. The structural correction that is achieved is widely known. However, the effect of this procedure on the soft tissues that support the plantar arch has been little studied, since it is not possible to quantify experimentally the tension and deformation variations generated. Therefore, the objective of this study was to evaluate the effect of medializing calcaneal osteotomy on the soft tissue that supports the plantar arch, using a computational model of the human foot designed with a clinical approach. The proposed finite element model was reconstructed from computerized tomography images of a healthy patient. All the bones of the foot, the plantar fascia, cartilages, plantar ligaments and the calcaneus-navicular ligament were included, respecting their anatomical distribution and biomechanical properties. Simulations were performed emulating the monopodal support phase of the human walk of an adult. The effect on each tissue was evaluated according to clinical and biomechanical criteria. The results show that calcaneal osteotomy reduces the tension normally generated on the evaluated tissues, with the effect on the calcaneus-navicular ligament and the plantar fascia being the most notable. The deformation results obtained are consistent with experimental tests and clinical knowledge. The versatility of this model allows the objective assessment of different conditions and supports decision making for the treatment of adult acquired flat foot in middle and advanced stages.

show abstract

Section: Modelo De Elementos Finitos Controlunclassified

Section: Condiciones De Cargaunclassified

Efecto de la osteotomía medializante de calcáneo sobre tejidos blandos de soporte del arco plantar: un estudio computacional

Larraínzar-Garijo

Portilla

Gutiérrez-Narvarte

et al. 2019

Revista Española de Cirugía Ortopédica y Traumatología

Self Cite

View full text Add to dashboard Cite

show abstract

“…Computational analyses of surgeries have been adopted based on FE models 56 and multi-body musculoskeletal models. 8,36 The stress distribution of the plantar foot is an essential contributor of normal function of the foot. It was investigated under a balanced standing state using an FE model consisting of simplified bony structures, some of the ligaments, tendons and plantar fascia.…”

Section: Foot Problem-specific Computational Modelsmentioning

confidence: 99%

“…A FE model consisting of 28 bones of the foot was developed to investigate the effect of progressive bone removal from the calcaneus on the mechanical stress redistribution of the foot. 8 Elastic and isotropic properties were assigned to bones, cartilage, ligament, and plantar fascia. Concentrated forces were applied as the loading condition.…”

Section: Calcaneus Bone Fixationmentioning

confidence: 99%

Computational Models of the Foot and Ankle for Pathomechanics and Clinical Applications: A Review

2015

View full text Add to dashboard Cite

Complementary to experimental studies, computational biomechanics has become useful tool for the understanding of human foot biomechanics and pathomechanics. Its findings have been widely used for the evaluation of the effectiveness of surgical and conservative interventions. These models, however, were developed with a wide range of variations in terms of simplifications and assumptions on the representation of geometrical structures and material properties, as well as boundary and loading conditions. These variations may create differences in prediction accuracy, and restrict practical and clinical applications. This paper reviews the state-of-the-art technologies and challenges in computational model development, focusing on foot problem-specific models for the assessment of the effectiveness and accessibility of clinical treatments. The computational models have provided valuable biomechanical information for clinical applications but further investigations come with many challenges in terms of detailed and patient-specific models, accurate representations of tissue properties, and boundary and loading conditions. Multi-scale computational models are expected to be an efficient platform to fully address the biomechanical and biological concerns.

show abstract

“…Previous computational models of the human Achilles tendon include 1-dimensional (1D) line elements to describe the tendon as a part of a foot model (Bandak et al, 2001;Bayod et al, 2012). Although such models are useful in predicting joint kinematics and kinetics, they cannot predict spatially varying 3-dimensional (3D) stresses and strains.…”

Section: Introductionmentioning

confidence: 99%

Subject-specific finite element analysis to characterize the influence of geometry and material properties in Achilles tendon rupture

Shim

Fernandez

Gamage

et al. 2014

Journal of Biomechanics

View full text Add to dashboard Cite

Mechanical stress redistribution in the calcaneus after autologous bone harvesting

Cited by 29 publications

References 21 publications

Efecto de la osteotomía medializante de calcáneo sobre tejidos blandos de soporte del arco plantar: un estudio computacional

Efecto de la osteotomía medializante de calcáneo sobre tejidos blandos de soporte del arco plantar: un estudio computacional

Computational Models of the Foot and Ankle for Pathomechanics and Clinical Applications: A Review

Subject-specific finite element analysis to characterize the influence of geometry and material properties in Achilles tendon rupture

Contact Info

Product

Resources

About