Both expandable and non-expandable interbody cage designs are available to surgeons for cases involving spinal reconstruction and stabilization following single level lumbar corpectomy [1]. Different expandable cage designs are on the market [2], but all involve a manual mechanism to intraoperatively adjust the compressive load applied by the cage against the vertebral body endplates. Non-expandable cages do not have such a mechanism, and surgeons rely on cutting the cage to the appropriate length to achieve a “press-fit.” The clinical reasoning behind the expandable cage design is that the adjustability of the device will allow the surgeon to achieve the maximum contact area between the cage and the vertebral endplate without “overstuffing” the interbody space and thus causing a sagittal-plane deformity.
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ASME 2010 Summer Bioengineering Conference
June 16–19, 2010
Naples, Florida, USA
Conference Sponsors:
- Bioengineering Division
ISBN:
978-0-7918-4403-8
PROCEEDINGS PAPER
Comparison of Mechanical Characteristics of Deployment for Expandable vs. Fixed Interbody Cages: Implications for Premature Clinical Failures
Liu C. Cheng,
Liu C. Cheng
University of California, San Francisco, San Francisco, CA
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Jovauna M. Currey,
Jovauna M. Currey
University of California, San Francisco, San Francisco, CA
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Ashin Modak,
Ashin Modak
University of California, San Francisco, San Francisco, CA
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Hyun Kyu Han,
Hyun Kyu Han
University of California San Francisco, San Francisco, CA
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R. Trigg McClellan,
R. Trigg McClellan
University of California, San Francisco, San Francisco, CA
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Murat Pekmezci,
Murat Pekmezci
University of California, San Francisco, San Francisco, CA
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Jenni M. Buckley,
Jenni M. Buckley
University of California, San Francisco, San Francisco, CA
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Christopher P. Ames
Christopher P. Ames
University of California, San Francisco, San Francisco, CA
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Liu C. Cheng
University of California, San Francisco, San Francisco, CA
Jovauna M. Currey
University of California, San Francisco, San Francisco, CA
Ashin Modak
University of California, San Francisco, San Francisco, CA
Hyun Kyu Han
University of California San Francisco, San Francisco, CA
R. Trigg McClellan
University of California, San Francisco, San Francisco, CA
Murat Pekmezci
University of California, San Francisco, San Francisco, CA
Jenni M. Buckley
University of California, San Francisco, San Francisco, CA
Christopher P. Ames
University of California, San Francisco, San Francisco, CA
Paper No:
SBC2010-19129, pp. 483-484; 2 pages
Published Online:
July 15, 2013
Citation
Cheng, LC, Currey, JM, Modak, A, Han, HK, McClellan, RT, Pekmezci, M, Buckley, JM, & Ames, CP. "Comparison of Mechanical Characteristics of Deployment for Expandable vs. Fixed Interbody Cages: Implications for Premature Clinical Failures." Proceedings of the ASME 2010 Summer Bioengineering Conference. ASME 2010 Summer Bioengineering Conference, Parts A and B. Naples, Florida, USA. June 16–19, 2010. pp. 483-484. ASME. https://doi.org/10.1115/SBC2010-19129
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