EXPERIMENTAL STUDY OF STABILITY AT CEMENT AND CEMENTLESS IMPLANTATION OF TRANSPEDICULAR SCREWS INTO VERTEBRAE WITH LOW MINERAL DENSITY OF BONE

EXPERIMENTAL STUDY OF STABILITY AT CEMENT AND CEMENTLESS IMPLANTATION OF TRANSPEDICULAR SCREWS INTO VERTEBRAE WITH LOW MINERAL DENSITY OF BONE

The stability of cemented and noncemented transpedicular screw implantations in vertebra with low mineral bone density was studied in experiment. We analyzed the destabilization of screw under distraction load, attached along longitudal axis of the screw on universal servo-hydraulic test machine «Wa...

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Bibliographic Details
Main Authors: A. A. Afaunov, V. D. Usikov, D. A. Ptashnikov, K. K. Takhmazyan, M. Yu. Dokish
Format: Article
Language:Russian
Published: Vreden Russian Research Institute of Traumatology and Orthopedics 2016-11-01
Series:Travmatologiâ i Ortopediâ Rossii
Subjects:
transpedicular screw fixation
osteoporosis
experiment
bone cement
stability
Online Access:https://journal.rniito.org/jour/article/view/542
Description
Summary:The stability of cemented and noncemented transpedicular screw implantations in vertebra with low mineral bone density was studied in experiment. We analyzed the destabilization of screw under distraction load, attached along longitudal axis of the screw on universal servo-hydraulic test machine «Walter+bay ag» LFV-10-T50. The factors of bone-cement-metallic block rigidity of cemented screw was in 2,10-2,38 times more then in situation with traditional transpedicular screw.
ISSN:2311-2905
2542-0933

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