PMID: 15239569Jul 9, 2004Paper

Prediction of inter-segment stability and osteophyte formation on the multi-segment C2-C7 after unilateral and bilateral facetectomy

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
Hong Wan NgQing-Hang Zhang

Abstract

The objective of this study was to determine the intersegment stability, disc degeneration, and osteophytes formation on the multisegment cervical spine (C2-C7) after unilateral and bilateral facetectomy. A geometrically accurate non-linear three-dimensional model of the intact human cervical spine was created from the digitized coordinates of the dry vertebrae. The intact model was validated against the published results under physiological loading conditions. Eight surgically altered models were created from the intact model. The intact and surgical altered models were subjected to physiological loading. The inclusion of five levels in the present model allowed accurate determination of the intersegment responses and internal cortical bone and disc annulus stress in the adjacent spinal components. Results indicated that facetectomy performed on C5-C6 significantly affects the corresponding stress and intersegment motions at the corresponding C5-C6 levels. The maximum increases were 18 per cent for bilateral facetectomy and 7 per cent for unilateral facetectomy under lateral bending. Combined flexion-extension and axial rotation caused an approximately similar amount of increases after total facetectomy. In addition, adjacent ...Continue Reading

References

Feb 1, 1978·AJR. American Journal of Roentgenology·L Penning
Sep 1, 1975·Journal of Biomechanics·M M PanjabiR M Johnson
Oct 1, 1992·Journal of Biomechanics·F LavasteC Mazel
Jan 1, 1988·Journal of Biomechanics·S P MoroneyG B Andersson
Jan 1, 1987·Journal of Biomechanics·R HuiskesT J Slooff
Oct 1, 1987·Spine·L Penning, J T Wilmink
Oct 1, 1987·Spine·B L AllenR L Ferguson
Jan 1, 1986·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·M M PanjabiW O Southwick
Aug 1, 1985·Journal of Neurosurgery·R B RaynorI Shapiro
Oct 15, 1993·Spine·T A ZdeblickS Garfin
Jan 1, 1995·Critical Reviews in Biomedical Engineering·L G GilbertsonJ D Clausen
May 1, 1997·Spine·L M VooJ F Cusick
May 1, 1997·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·J D ClausenJ Scifert
Jan 5, 2000·Clinical Biomechanics·S KumaresanF A Pintar
Feb 24, 2001·Journal of Biomechanical Engineering·N YoganandanF A Pintar

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.