Evidence map›Paper›PMID 34131064›Full record

ArticleBMJ military health2023

Degenerative cervical spine changes among early career fighter pilots: a 5-year follow-up.

Tuomas Keskimölö, J Pernu, J Karppinen, J Niinimäki, P Oura, T Leino, T Honkanen

Open access · hybridAbstract read
In one paragraph

Article in BMJ military health, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.6field-weighted citation impact, top 34% 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

3 citing papers in PubMed, 8 citations in OpenAlex.

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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

7 authors at 4 institutions in 1 country.

Tuomas KeskimölöFaculty of Medicine, University of Oulu, Oulu, Finland tuomas.keskimolo@student.oulu.fi.
J PernuFaculty of Medicine, University of Oulu, Oulu, Finland.
J KarppinenMedical Research Center Oulu, Oulu University Hospital, Oulu, Finland.
J NiinimäkiFaculty of Medicine, University of Oulu, Oulu, Finland.
P OuraMedical Research Center Oulu, Oulu University Hospital, Oulu, Finland.
T LeinoAir Force Command Finland, Tikkakoski, Finland.
T HonkanenAeromedical Centre, Centre for Military Medicine, Finnish Defence Forces, Helsinki, Uusimaa, Finland.
University of Oulu · FIOulu University Hospital · FIFinnish Defence Forces · FINational Defence University · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionDegenerative changes of the cervical spine often cause disability and flight duty limitations among Finnish Air Force (FINAF) fighter pilots. We aimed to study the effect of +Gz exposure on degenerative changes in the cervical spine by comparing cervical MRIs of FINAF fighter pilots and controls.

methodsAt baseline, the volunteer study population consisted of 56 20-year-old FINAF male fighter pilots (exposure group) and 56 21-year-old Army and Navy cadets (control group). Both groups underwent MRI of the cervical spine at the baseline and after 5 years. Degenerative changes evaluated using MRI included intervertebral disc (IVD) degeneration (Pfirrmann classification), disc herniations, uncovertebral arthrosis, Schmorl's nodes, Modic changes, spinal canal stenosis, kyphosis and scoliosis.

resultsThe degree of IVD degeneration in the whole cervical spine increased significantly in both populations with no between-group differences. The prevalence of disc herniations also tended to increase in both populations with no difference in the incidence over the follow-up. However, pilots proved to have more disc herniations at the baseline and at the follow-up. There were virtually no between-group differences in other assessed degenerative changes. DISCUSSION: We found that IVD degeneration and the prevalence of disc herniations increased at a similar rate for fighter pilots and non-flying military students when all cervical levels were summed up. The lack of difference may be explained by the relatively low cumulative +Gz exposure during the first 5 years of a pilots' career.

Indexed as

Intervertebral Disc DisplacementPilotsCervical VertebraeFollow-Up StudiesHumansMaleNeckaviation medicinehead & neck imagingmagnetic resonance imagingoccupational & industrial medicinespine

Identifiers

PMID34131064
PMCPMC10423485
OpenAlexW3167501053

What OpenQuestion holds

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LicenceCC BY-NC
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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.