Comparative analysis of international standards for the fatigue testing of posterior spinal fixation systems

T Villa, L La Barbera, F Galbusera - The Spine Journal, 2014 - Elsevier
Background context Preclinical evaluation of the long-term reliability of devices for lumbar
fixation is a mandatory activity before they are put into market. The experimental setups are …

[HTML][HTML] The strain distribution in the lumbar anterior longitudinal ligament is affected by the loading condition and bony features: An in vitro full-field analysis

M Palanca, ML Ruspi, L Cristofolini, C Liebsch, T Villa… - PLoS …, 2020 - journals.plos.org
The role of the ligaments is fundamental in determining the spine biomechanics in physiological
and pathological conditions. The anterior longitudinal ligament (ALL) is fundamental in …

Effect of Sacropelvic Hardware on Axis and Center of Rotation of the Sacroiliac Joint: A Finite Element Study

…, DW Polly, DP Lindsey, TMT Villa… - International Journal of …, 2023 - ijssurgery.com
Background The sacroiliac joint (SIJ) transfers the load of the upper body to the lower
extremities while allowing a variable physiological movement among individuals. The axis of …

[PDF][PDF] Composite Polymer Coated Mineral Scaffolds for Bone Regeneration: From Material Characterization to Human Studies

…, F Carinci, G Carusi, E Dragos, T Villa… - Journal of Biological …, 2015 - re.public.polimi.it
Evidence of clinical needs related to bone reconstruction dates back to ancient Egypt. A
more rigorous scientific approach has been followed since 1889, when “modern” scientists …

Primary stability of pedicle screws depends on the screw positioning and alignment

F Costa, T Villa, F Anasetti, M Tomei, A Ortolina… - The Spine Journal, 2013 - Elsevier
… Author links open overlay panel Francesco Costa MD a , Tomaso Villa PhD b , Federica
Anasetti MSEng c , Massimo Tomei MD a , Alessandro Ortolina MD a , Andrea Cardia MD a , …

Spine stability after implantation of an interspinous device: an in vitro and finite element biomechanical study

…, HN Aziz, CM Bellini, A Addis, T Villa… - … of Neurosurgery: Spine, 2010 - thejns.org
Object Interspinous devices are widely used for the treatment of lumbar stenosis. The DIAM
spinal stabilization system (Medtronic, Ltd.) is an interspinous implant made of silicone and …

[HTML][HTML] Planning the surgical correction of spinal deformities: toward the identification of the biomechanical principles by means of numerical simulation

…, B Schlager, M Brayda-Bruno, T Villa… - … in Bioengineering and …, 2015 - frontiersin.org
In decades of technical developments after the first surgical corrections of spinal deformities,
the set of devices, techniques, and tools available to the surgeons has widened dramatically…

Aortic tissue properties in porcine models: a comparison of ex vivo mechanical test results after simulated aortic arch reconstructions

…, M Smerup, ET Fründ, T Villa… - Journal of Applied …, 2005 - journals.sagepub.com
MT samples appear to have significantly lower relaxation … This effect is particularly evident
in GPGA cases MT-3 and MT-… MT-3 and MT-4, the overall difference between ST and MT was …

Analysis of a unilateral bridging cage for lumbar interbody fusion: 2-year clinical results and fusion rate with a focus on subsidence

NH von der Hoeh, T Villa, F Galbusera, A Voelker… - World Neurosurgery, 2018 - Elsevier
Purpose The aim of this study was to evaluate the biomechanical stability and the clinical
and radiographic outcomes in patients undergoing transforaminal lumbar interbody fusion (TLIF…

The Draft Genome of Ciona intestinalis: Insights into Chordate and Vertebrate Origins

…, RK Campbell, J Chapman, B Degnan, A De Tomaso… - Science, 2002 - science.org
The first chordates appear in the fossil record at the time of the Cambrian explosion, nearly
550 million years ago. The modern ascidian tadpole represents a plausible approximation to …