Evidence map›Paper›PMID 32450891›Full record

ArticleOrphanet journal of rare diseases2020

High prevalence of symptomatic spinal stenosis in Norwegian adults with achondroplasia: a population-based study.

Svein O Fredwall, Unni Steen, Olga de Vries, Cecilie F Rustad, Heidi Beate Eggesbø, Harald Weedon-Fekjær, Ingeborg B Lidal, Ravi Savarirayan, Grethe Månum

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Orphanet journal of rare diseases, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
5.4field-weighted citation impact, top 4% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 45 citations in OpenAlex.

  1. Guideline
  2. Article
  3. Article
  4. Review
  5. Observational
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Optimising care and follow-up of adults with achondroplasia.Orphanet journal of rare diseases · 2022
    Article
  16. Article
  17. Article
  18. [Clinical features andZhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2022
    Article
  19. Review
  20. Inconvenience and adaptation in Japanese adult achondroplasia and hypochondroplasia: A cross-sectional study.Clinical pediatric endocrinology : case reports and clinical investigations : official journal of the Japanese Society for Pediatric Endocrinology · 2022
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 2 countries.

Svein O FredwallSunnaas Rehabilitation Hospital, TRS National Resource Centre for Rare Disorders, Nesodden, Norway. svfred@sunnaas.no.ORCID http://orcid.org/0000-0002-2804-5783
Unni SteenSunnaas Rehabilitation Hospital, TRS National Resource Centre for Rare Disorders, Nesodden, Norway.
Olga de VriesSunnaas Rehabilitation Hospital, TRS National Resource Centre for Rare Disorders, Nesodden, Norway.
Cecilie F RustadOslo University Hospital, Department of Medical Genetics, Oslo, Norway.
Heidi Beate EggesbøOslo University Hospital, Division of Radiology and Nuclear Medicine, Oslo, Norway.
Harald Weedon-FekjærOslo Centre for Biostatistics and Epidemiology, Research Support Service, Oslo University Hospital, Oslo, Norway.
Ingeborg B LidalSunnaas Rehabilitation Hospital, TRS National Resource Centre for Rare Disorders, Nesodden, Norway.
Ravi SavarirayanMurdoch Children's Research Institute and University of Melbourne, Parkville, Australia.
Grethe MånumFaculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
Oslo University Hospital · NOSunnaas sykehus · NOUniversity of Oslo · NOThe University of Melbourne · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSymptomatic spinal stenosis (SSS) is a well-known medical complication in achondroplasia. The reported prevalence of SSS is 10 to 30%, an estimate based on small studies or selected populations. No population-based studies exist currently. Furthermore, the relationship between SSS and physical functioning has not been investigated in detail. The aims of this study were to describe the prevalence of SSS in Norwegian adults with achondroplasia, and to explore the impact of SSS on physical functioning.

methodsThis was a population-based study on Norwegian community-dwelling adults with genetically confirmed achondroplasia. Prevalence of SSS was defined by clinical symptoms, and confirmed by imaging or surgical reports. Physical functioning was assessed by walking capacity (6-min walk test), hand strength (Grippit), and activities of daily living (the Health Assessment Questionnaire, HAQ). Pain was assessed by pain site locations and intensity (Numeric Rating Scale, NRS).

resultsIn total, 50 participants were included (27 males, 23 females). Median age was 41 years (range 16 to 87 years), 34 (68%) had SSS. The estimated median age at first symptom onset was 33 years (95% confidence interval (CI) 29 to 43 years), range 10 to 67 years. The majority had multiple spinal levels affected. The walking distance was 110 m shorter in the SSS group (95% CI - 172 to - 40 m) as compared with the non-SSS group (p < 0.01). There was no considerable difference in hand strength between the two groups. Mean HAQ scores (0-3) for walking and hygiene were significantly higher in the SSS group, reflecting more activity limitations. Mean differences were 0.9 (95% CI 0.3 to 1.4, p < 0.01) and 0.6 (95% CI 0.2 to 1.0, p < 0.01). Pain intensity (NRS 0-10) was also significantly higher in the SSS group with a mean difference of 3.2 (95% CI 0.6 to 5.6, p = 0.02).

conclusionsSSS was highly prevalent in Norwegian adults with achondroplasia, with symptom onset at young age, and multiple spinal levels affected. The presence of SSS was associated with reduced walking distance, activity limitations, and more pain. The findings underline the importance of thorough assessment and monitoring of SSS in achondroplasia, including a formal assessment of physical functioning.

Indexed as

AchondroplasiaSpinal StenosisActivities of Daily LivingAdolescentAdultAgedAged, 80 and overChildFemaleHumansLumbar VertebraeMaleMiddle AgedPrevalenceYoung Adult6-minute walk testAchondroplasiaActivities of daily livingAdultsHand strengthPainSpinal stenosis

Identifiers

PMID32450891
PMCPMC7249360
OpenAlexW3031495537

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.