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Retrotransverse foramen of the atlas: prevalence and bony variations

Overview of attention for article published in European Spine Journal, November 2017
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Title
Retrotransverse foramen of the atlas: prevalence and bony variations
Published in
European Spine Journal, November 2017
DOI 10.1007/s00586-017-5372-4
Pubmed ID
Authors

Juan A. Sanchis-Gimeno, Esther Blanco-Perez, Marcelino Perez-Bermejo, Susanna Llido, Shahed Nalla

Abstract

To analyze the prevalence of the retrotransverse foramen (RTF) and its bony variations. One hundred ten atlases of living adult subjects, 161 twentieth century dry adult cervical atlases and four dry adult cervical atlases from medieval skeletons were studied to detect the RTF and its abnormal bony variations. The 110 living adult subjects underwent a computed tomography study to detect the RTF. In the in vivo sample (n = 110; 100%), the RTF was found in four (3.6%) atlases. It was bilateral in all cases, but three (2.7%) patients showed complete RTF and the other patient presented a complete RTF in the left transverse process and an unclosed RTF in the right transverse process. In addition, the RTF was observed in combination with an unclosed transverse foramen in two cases (1.8%). In the twentieth century skeletal sample (n = 206; 100%) the RTF was found in 15 (7.3%) C1 vertebrae. It was bilateral in three (1.5%) vertebrae and unilateral in another 12 (5.8%) vertebrae. In the medieval skeletal sample (n = 4; 100%) one cadaveric atlas (25%) presented a bilateral RTF with special bony characteristics which presented an unexpected spicula in the left RTF. The RTF is a nonmetric variant of the atlas vertebra that can present non-degenerative and non-traumatic spiculae or it can be unclosed. In addition, it can be associated with the presence of unclosed transverse foramina.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 19 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 19 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 3 16%
Student > Bachelor 3 16%
Student > Doctoral Student 2 11%
Other 2 11%
Researcher 2 11%
Other 6 32%
Unknown 1 5%
Readers by discipline Count As %
Medicine and Dentistry 6 32%
Nursing and Health Professions 2 11%
Agricultural and Biological Sciences 2 11%
Arts and Humanities 1 5%
Business, Management and Accounting 1 5%
Other 2 11%
Unknown 5 26%
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 12 August 2018.
All research outputs
#15,483,026
of 23,007,887 outputs
Outputs from European Spine Journal
#2,053
of 4,665 outputs
Outputs of similar age
#207,605
of 331,365 outputs
Outputs of similar age from European Spine Journal
#28
of 49 outputs
Altmetric has tracked 23,007,887 research outputs across all sources so far. This one is in the 22nd percentile – i.e., 22% of other outputs scored the same or lower than it.
So far Altmetric has tracked 4,665 research outputs from this source. They receive a mean Attention Score of 4.1. This one has gotten more attention than average, scoring higher than 51% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 331,365 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 28th percentile – i.e., 28% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 49 others from the same source and published within six weeks on either side of this one. This one is in the 28th percentile – i.e., 28% of its contemporaries scored the same or lower than it.