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Chronic Whiplash Associated Disorders (WAD): Responses to Nerve Blocks of Cervical Zygapophyseal Joints

Overview of attention for article published in Pain Medicine, March 2016
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Title
Chronic Whiplash Associated Disorders (WAD): Responses to Nerve Blocks of Cervical Zygapophyseal Joints
Published in
Pain Medicine, March 2016
DOI 10.1093/pm/pnw036
Pubmed ID
Authors

Mats Persson, Jan Sörensen, Björn Gerdle

Abstract

This study explores the prevalence of facet joint pain in chronic Whiplash Associated Disorder (WAD). Forty-seven patients with chronic WAD were scheduled for medial branch blocks of the cervical spine. The patient's localization of the pain together with established pain maps guided to the first level of zygapophyseal joint to be tested. The joint was anesthetized by injecting bupivacaine (0.5 ml; 5 mg/ml) to the medial branches of the cervical dorsal rami above and below the joint. If a positive response was noted, the schedule continued with a double-blinded sequence with a placebo (saline) and bupivacaine. If a negative response was noted, other joint levels were anesthetized until all joints from C2 to C7 were tested. The responses were assessed using a visual analog scale (VAS) in a predefined protocol.The study was carried through with a definition of a positive response to a diagnostic block as a VAS decrease ≥50% compared with baseline during a minimum of 3 hours after the block. All other responses were regarded as negative. The data were also analyzed using a definition of a positive response as a VAS decrease ≥80%, and figures from this analysis are presented as the main result of the study. The study yielded 29% true positive responders, 60% non-responders, and 11% placebo responders. A substantial amount of patients with chronic WAD have their persistent pain emanating from cervical zygapophyseal joints.

Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 54 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 54 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 12 22%
Student > Bachelor 6 11%
Student > Postgraduate 5 9%
Other 4 7%
Researcher 4 7%
Other 12 22%
Unknown 11 20%
Readers by discipline Count As %
Medicine and Dentistry 20 37%
Nursing and Health Professions 13 24%
Engineering 3 6%
Sports and Recreations 2 4%
Social Sciences 1 2%
Other 2 4%
Unknown 13 24%
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 16 October 2023.
All research outputs
#22,070,511
of 24,625,114 outputs
Outputs from Pain Medicine
#2,996
of 3,163 outputs
Outputs of similar age
#264,210
of 306,378 outputs
Outputs of similar age from Pain Medicine
#65
of 72 outputs
Altmetric has tracked 24,625,114 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
So far Altmetric has tracked 3,163 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 13.9. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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We're also able to compare this research output to 72 others from the same source and published within six weeks on either side of this one. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.