Evidence map›Paper›PMID 34239188›Full record

ArticleNagoya journal of medical science2021

Ossification of the posterior longitudinal ligament located on the concave side of the apex vertebra in adult spinal deformity.

Hiroyuki Koshimizu, Kei Ando, Kazuyoshi Kobayashi, Hiroaki Nakashima, Masaaki Machino, Sadayuki Ito, Shunsuke Kanbara, Taro Inoue, Hidetoshi Yamaguchi, Shiro Imagama

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In one paragraph

Article in Nagoya journal of medical science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact, top 89% 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

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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

0 citing papers in PubMed, 0 citations in OpenAlex.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 1 institution in 1 country.

Hiroyuki KoshimizuDepartment of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Kei AndoDepartment of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Kazuyoshi KobayashiDepartment of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Hiroaki NakashimaDepartment of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Masaaki MachinoDepartment of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Sadayuki ItoDepartment of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Shunsuke KanbaraDepartment of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Taro InoueDepartment of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Hidetoshi YamaguchiDepartment of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Shiro ImagamaDepartment of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Nagoya University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A 48-year-old female patient presented with discomfort in the front of the chest. Whole spinal X-ray revealed a thoracic curve of 52°, and thoracic computed tomography (CT) myelography and magnetic resonance imaging (MRI) showed that ossification of the posterior longitudinal ligament (OPLL) on the concave side of the apex vertebra (T9) had highly compressed the spinal cord. Cervical MRI also showed that the C4-C5 intervertebral disc herniation mildly compressed the spinal nerve. In concomitant surgery, the patient underwent cervical laminoplasty, in which OPLL was removed by decompressive laminectomy and posterior correction surgery.In patients with adult spinal deformity (ASD), asymmetric mechanical stress at the apex vertebra can cause various abnormal conditions. Long-term local mechanical stress on the concave side of the apex vertebra might have affected OPLL formation in the present case. This is the first report of a surgical case for an ossification located on the concave side of the apex vertebra in a patient with ASD. Mechanical stress at the concave side of the apex vertebra was suspected to be a cause of formation of OPLL.

Indexed as

LaminoplastyOssification of Posterior Longitudinal LigamentCervical VertebraeFemaleHumansLongitudinal LigamentsMiddle AgedOsteogenesisSpineadult spinal deformityconcave sidemechanical stressossification of the posterior longitudinal ligament

Identifiers

PMID34239188
PMCPMC8236683
OpenAlexW3178292167

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.