Biomechanical Comparison of Kyphoplasty With Different Bone Cements

Tomita, Seiji; Molloy, Sean; Jasper, Louis E.; Abe, Muneaki; Belkoff, Stephen M.

doi:10.1097/00007632-200406010-00009

Cited by 84 publications

(44 citation statements)

References 18 publications

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“…To overcome the failure at the bone-screw interface that may result in screw pullout, several new approaches have been developed. The use of PMMA cement for pedicle screw augmentation has been reported in literature (4,6,23,24,27) Kyphoplasty-based or vertebroplasty-based pedicle screw augmentations are performed to yield significantly greater pullout strength (1,6,28). PMMA, calcium phosphate and injectable bioactive ceramic resins have all been used to augment vertebral screws (7-9, 12,17,20,21,23,26,29,31,32).…”

Section: Discussionmentioning

confidence: 99%

May dubel be a solution for pullout problem of the pedicle screws at osteoporotic spine?

Çakır

Eyuboglu²,

Yazar³

et al. 2014

Turkish Neurosurgery

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AIm:To improve the strength of stabilization systems currently used in osteoporotic spinal fractures, essentially by increasing the fixation force of pedicle screws. mATERIAL and mETHods: Six human cadaveric vertebrae were used. Bone mineral densities of the specimens were measured with Dual Energy X-ray Absorptiometry in order to assess the osteoporosis. All vertebrae were found to be severely osteoporotic. Standard pedicle screws were applied to left pedicles of vertebrae. Pedicle screws reinforced by fixing plugs "Dubel" were applied to right pedicles of vertebrae. Afterwards the vertebrae were embedded in acrylic casts to prevent possible fracture of the osteoporotic vertebrae and to obtain a correct vertical pull-out vector. The biomechanical pullout tests were performed with biomechanical testing machine. Pullout forces in each group were recorded and compared with Mann-Whitney U test. REsuLTs:The pedicle screws strengthened by "Dubel" were found to be four times stronger than the standard pedicle screws, in the osteoporotic human cadaveric vertebrae.CoNCLusIoN: "Dubel"-augmented pedicle screws may contribute to developing better stabilization systems for osteoporotic thoracolumbar fractures needing surgery and in the revision of the previous fusion surgeries of the spine.

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Section: Discussionmentioning

confidence: 99%

May dubel be a solution for pullout problem of the pedicle screws at osteoporotic spine?

Çakır

Eyuboglu²,

Yazar³

et al. 2014

Turkish Neurosurgery

View full text Add to dashboard Cite

show abstract

“…In our study we used the kyphoplasty technique because it is widely used for vertebral augmentation and associated with fewer complications and has a better potential to restore vertebral height, although more cement is used in the kyphoplasty technique improving the stability of the pedicle screws [15,16].…”

Section: Discussionmentioning

confidence: 99%