Evidence map›Paper›PMID 31124460›Full record

ArticleBioMedicine2019

Ossification of the yellow ligament in the cervical spine - an unusual location.

Jacob Yoong-Leong Oh, Victor Tzong-Jing Wang, Timothy Wei Wen Teo, Arun-Kumar Kaliya-Perumal, Hwan Tak Hee

Open access · diamondAbstract read
In one paragraph

Article in BioMedicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.9field-weighted citation impact, top 25% 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

2 citing papers in PubMed, 5 citations in OpenAlex.

  1. Review
  2. Article
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

5 authors at 3 institutions in 2 countries.

Jacob Yoong-Leong OhDepartment of Orthopaedic Surgery, Spine Division, Tan Tock Seng Hospital, Singapore.
Victor Tzong-Jing WangDepartment of Orthopaedic Surgery, Spine Division, Tan Tock Seng Hospital, Singapore.
Timothy Wei Wen TeoDepartment of Orthopaedic Surgery, Khoo Teck Puat Hospital, Singapore.
Arun-Kumar Kaliya-PerumalDepartment of Orthopaedic Surgery, Spine Division, Tan Tock Seng Hospital, Singapore - Department of Orthopaedic Surgery, Melmaruvathur Adhiparasakthi Institute of Medical sciences and Research, Affiliated to the Tamil Nadu Dr MGR Medical University, Tamil Nadu, India.
Hwan Tak HeePinnacle Spine and Scoliosis Centre, Mount Elizabeth Medical Centre, Singapore.
Tan Tock Seng Hospital · SGKhoo Teck Puat Hospital · SGMount Elizabeth Hospital · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ossification of the yellow ligament (OYL) or ligamentum flavum, usually occurs in the thoracic spine. Focal OYL occurring in the cervical spine is considered rare and is sparsely reported in the literature. We came across a 30-year-old male patient with progressive left upper limb and bilateral lower limb weakness over a period of 3 months, associated with an unsteady gait. Clinical examination revealed bilateral generalized hyper-reflexia in both upper and lower limbs, inverted supinator jerk, Hoffman's sign and clonus. Myelopathy due to cord compression was suspected and further investigations were done. MRI and CT scans revealed a bony mass in relation to the C6 spinous process projecting anterosuperiorly and narrowing the cervical spinal canal causing cord signal changes from C4 to C6 levels. In view of the deteriorating neurological status, immediate surgery in the form of decompression and posterior stabilization from C4-C6 was performed. Patient gradually recovered after surgery and attained full functional status. We report this case considering the unusual location of OYL and its successful management.

Identifiers

PMID31124460
PMCPMC6533938
OpenAlexW2945788467

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.