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

A. A. Afaunov; V. D. Usikov; D. A. Ptashnikov; K. K. Takhmazyan; M. Yu. Dokish

doi:10.21823/2311-2905-2010-0-2-97-101

Traumatology and Orthopedics of Russia ›› 2010, Vol. 16 ›› Issue (2) : 97 -101. DOI: 10.21823/2311-2905-2010-0-2-97-101

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

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Abstract

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.

Keywords

transpedicular screw fixation / osteoporosis / experiment / bone cement / stability

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A. A. Afaunov, V. D. Usikov, D. A. Ptashnikov, K. K. Takhmazyan, M. Yu. Dokish. EXPERIMENTAL STUDY OF STABILITY AT CEMENT AND CEMENTLESS IMPLANTATION OF TRANSPEDICULAR SCREWS INTO VERTEBRAE WITH LOW MINERAL DENSITY OF BONE. Traumatology and Orthopedics of Russia, 2010, 16(2): 97-101 DOI:10.21823/2311-2905-2010-0-2-97-101

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