Evidence map›Paper›PMID 33059431›Full record

ArticleAsian spine journal2021

Evaluation of the Association between Neck Pain and the Trapezius Muscles in Patients with Cervical Myelopathy Using Motor Evoked Potential: A Retrospective Study.

Sadayuki Ito, Yoshihito Sakai, Atsushi Harada, Kei Ando, Kazuyoshi Kobayashi, Hiroaki Nakashima, Masaaki Machino, Shunsuke Kambara, Taro Inoue, Tetsuro Hida and 3 more

Open access · diamondAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Asian spine journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.8field-weighted citation impact, top 27% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 4 institutions in 1 country.

Sadayuki ItoDepartment of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Yoshihito SakaiDepartment of Orthopedic Surgery, National Center for Geriatrics and Gerontology, Obu, Japan.
Atsushi HaradaDepartment of Orthopedic Surgery, National Center for Geriatrics and Gerontology, Obu, Japan.
Kei AndoDepartment of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Kazuyoshi KobayashiDepartment of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Hiroaki NakashimaDepartment of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Masaaki MachinoDepartment of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Shunsuke KambaraDepartment of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Taro InoueDepartment of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Tetsuro HidaDepartment of Orthopedic Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan.
Kenyu ItoDepartment of Orthopedic Surgery, Konan Kosei Hospital, Konan, Japan.
Naoki IshiguroDepartment of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Shiro ImagamaDepartment of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Nagoya University · JPNational Center for Geriatrics and Gerontology · JPJapanese Red Cross Nagoya Daini Hospital · JPKonan Kosei Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

designRetrospective study. PURPOSE: We aimed to use motor evoked potentials (MEPs) to examine the association of electrophysiological assessment of the trapezius muscle with neck pain. OVERVIEW OF LITERATURE: Previous reports on the association of neck pain with the trapezius muscle have focused on surface electromyograms and muscle oxygenation; however, to our knowledge, none of these studies included detailed data on MEPs.

methodsThe study included 100 patients with cervical myelopathy who underwent surgery at the National Center for Geriatrics and Gerontology in Obu, Japan from June 2010 to March 2013. Before the surgery, neck pain was evaluated using a Visual Analog Scale (a score ≥50 indicated neck pain and a score <50 indicated no neck pain). The preoperative cross-sectional areas of the trapezius muscles were measured with cervical magnetic resonance imaging sagittal T2-weighted images. Cranial stimulation under general anesthesia was used to derive the MEPs, enabling the measurement of latency and amplitude, using preoperative MEPs of the trapezius muscles.

resultsThe MEP of the trapezius muscle in patients with neck pain had significantly shorter latencies than those in patients who did not have neck pain. However, there was no significant difference in the amplitude between patients with and without neck pain. However, this tended to be greater in patients with neck pain as compared to that in those without neck pain. The cross-sectional area of the trapezius muscle in patients with neck pain was significantly smaller than that in those who did not have neck pain.

conclusionsMEPs revealed electrophysiological abnormalities of the trapezius muscles in patients with neck pain, supporting a relationship of neck pain with the trapezius muscles.

Indexed as

Cervical myelopathyCross-sectional areasMotor evoked potentialsNeck painTrapezius muscle

Identifiers

PMID33059431
PMCPMC8561161
OpenAlexW3092873140

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.