Design and development of an anterior spine instrumentation for metastastic vertebra

H. Kojimoto*, V. K. Goel, P. A. Donaher, N. Yasui, James Neil Weinstein

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Anterior spinal instrumentation augmented with PMMA becomes a procedure of choice to restore immediate spinal function for spine metastasis. Several instrumentation systems are available for use. None of the devices, however, is entirely satisfactory. The metal or ceramic implant most commonly used is of fixed height necessitating a partial resection of the intact vertebral bodies for proper accommodation. A biomechanical evaluation of these devices is also lacking. For these reasons, a new spinal implant was developed and tested at our laboratory. The implant consists of two 'rectangular' tubes that can slide with respect to one another. The sliding feature allows for adjusting the height of the implant. The device was tested for its effectiveness in preventing motion across the stabilized segment during the physiological range of motion of the ligamentous specimens. A Selspot II motion measuring system was used for obtaining the three-dimensional load-displacement behavior of various vertebrae of the intact specimen and the stabilized specimen.

Original languageEnglish (US)
Title of host publication1992 Advances in Bioengineering
PublisherPubl by ASME
Pages183-184
Number of pages2
ISBN (Print)0791811166
StatePublished - Dec 1 1992
EventWinter Annual Meeting of the American Society of Mechanical Engineers - Anaheim, CA, USA
Duration: Nov 8 1992Nov 13 1992

Publication series

NameAmerican Society of Mechanical Engineers, Bioengineering Division (Publication) BED
Volume22

Other

OtherWinter Annual Meeting of the American Society of Mechanical Engineers
CityAnaheim, CA, USA
Period11/8/9211/13/92

ASJC Scopus subject areas

  • Engineering(all)

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