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Critical Values of Facet Joint Angulation and Tropism in the Development of Lumbar Degenerative Spondylolisthesis: An International, Large-Scale Multicenter Study by the AOSpine Asia Pacific Research…

Overview of attention for article published in Global Spine Journal, October 2015
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Title
Critical Values of Facet Joint Angulation and Tropism in the Development of Lumbar Degenerative Spondylolisthesis: An International, Large-Scale Multicenter Study by the AOSpine Asia Pacific Research Collaboration Consortium
Published in
Global Spine Journal, October 2015
DOI 10.1055/s-0035-1564417
Pubmed ID
Authors

Dino Samartzis, Jason Pui Yin Cheung, Shanmuganathan Rajasekaran, Yoshiharu Kawaguchi, Shankar Acharya, Mamoru Kawakami, Shigenobu Satoh, Wen-Jer Chen, Chun-Kun Park, Chong-Suh Lee, Thanit Foocharoen, Hideki Nagashima, Sunguk Kuh, Zhaomin Zheng, Richard Condor, Manabu Ito, Motoki Iwasaki, Je Hoon Jeong, Keith D. K. Luk, Bambang Prijambodo, Amol Rege, Tae-Ahn Jahng, Zhuojing Luo, Warat Tassanawipas, Narayana Acharya, Rohit Pokharel, Yong Shen, Takui Ito, Zhihai Zhang, Janardhana Aithala P, Gomatam Vijay Kumar, Rahyussalim Ahmad Jabir, Saumyajit Basu, Baojun Li, Vishal Moudgil, Ben Goss, Phoebe Sham, Richard Williams

Abstract

An international, multicenter cross-sectional image-based study performed in 33 institutions in the Asia Pacific region. The study addressed the role of facet joint angulation and tropism in relation to L4-L5 degenerative spondylolisthesis (DS). The study included 349 patients (63% females; mean age: 61.8 years) with single-level DS; 82 had no L4-L5 DS (group A) and 267 had L4-L5 DS (group B). Axial computed tomography and magnetic resonance imaging were utilized to assess facet joint angulations and tropism (i.e., asymmetry between facet joint angulations) between groups. There was a statistically significant difference between group A (left mean: 46.1 degrees; right mean: 48.2 degrees) and group B (left mean: 55.4 degrees; right mean: 57.5 degrees) in relation to bilateral L4-L5 facet joint angulations (p < 0.001). The mean bilateral angulation difference was 7.4 and 9.6 degrees in groups A and B, respectively (p = 0.025). A critical value of 58 degrees or greater significantly increased the likelihood of DS if unilateral (adjusted OR: 2.5; 95% CI: 1.2 to 5.5; p = 0.021) or bilateral facets (adjusted OR: 5.9; 95% CI: 2.7 to 13.2; p < 0.001) were involved. Facet joint tropism was found to be relevant between 16 and 24 degrees angulation difference (adjusted OR: 5.6; 95% CI: 1.2 to 26.1; p = 0.027). In one of the largest studies assessing facet joint orientation in patients with DS, greater sagittal facet joint angulation was associated with L4-L5 DS, with a critical value of 58 degrees or greater increasing the likelihood of the condition for unilateral and bilateral facet joint involvement. Specific facet joint tropism categories were noted to be associated with DS.

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Mendeley readers

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Geographical breakdown

Country Count As %
Unknown 58 100%

Demographic breakdown

Readers by professional status Count As %
Other 9 16%
Researcher 5 9%
Student > Bachelor 5 9%
Student > Doctoral Student 5 9%
Student > Postgraduate 4 7%
Other 10 17%
Unknown 20 34%
Readers by discipline Count As %
Medicine and Dentistry 18 31%
Nursing and Health Professions 5 9%
Biochemistry, Genetics and Molecular Biology 2 3%
Agricultural and Biological Sciences 2 3%
Engineering 2 3%
Other 6 10%
Unknown 23 40%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 05 December 2017.
All research outputs
#20,453,782
of 23,009,818 outputs
Outputs from Global Spine Journal
#925
of 1,107 outputs
Outputs of similar age
#239,226
of 284,965 outputs
Outputs of similar age from Global Spine Journal
#23
of 45 outputs
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So far Altmetric has tracked 1,107 research outputs from this source. They receive a mean Attention Score of 3.7. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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