Evidence map›Paper›PMID 31409337›Full record

Observational studyBMC musculoskeletal disorders2019

Low bone density and high morbidity in patients between 55 and 70 years with displaced femoral neck fractures: a case-control study of 50 patients vs 150 normal controls.

Stefan Bartels, Jan-Erik Gjertsen, Frede Frihagen, Cecilia Rogmark, Stein Erik Utvåg

Open access · goldAbstract readObservational Study
PubMed Full text at PMC Publisher
In one paragraph

Observational study in BMC musculoskeletal disorders, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Pooled it
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  8. Review
  9. A Comparison of Risks and Benefits Regarding Hip Arthroplasty Fixation.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2021
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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

5 authors at 5 institutions in 2 countries.

Stefan BartelsDepartment of Orthopedic Surgery, Akershus University Hospital, Lørenskog, Norway. stba@ahus.no.ORCID http://orcid.org/0000-0002-2370-1753
Jan-Erik GjertsenNorwegian Hip Fracture Register, Department of Orthopedic Surgery, Haukeland University Hospital, Bergen, Norway.
Frede FrihagenDepartment of Orthopedic Surgery, Oslo University Hospital, Oslo, Norway.
Cecilia RogmarkDepartment of Orthopedics, Skåne University Hospital, Lund University, Malmö, Sweden.
Stein Erik UtvågDepartment of Orthopedic Surgery, Akershus University Hospital, Lørenskog, Norway.
Haukeland University Hospital · NOLund University · SEOsloMet – Oslo Metropolitan University · NOOslo University Hospital · NOUniversity of Oslo · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA displaced femoral neck fracture (FNF) in patients 55-70 years is a serious injury with a high risk of treatment failure and the optimal surgical treatment remains unclear. We aimed to describe characteristics of fracture patients compared to a sample from the normal population.

methodsFifty patients aged 55-70 years with a displaced FNF were gender- and age- matched with a control group of 150 persons without a hip fracture using computergenerated randomization and the Norwegian National Population Register. To reduce the risk of spurious selection bias, the sample size of the control group was trebled compared to the fracture group. Dual-energy x-ray absorptiometry (DXA) was performed. Demographics and hip function (Harris Hip Score, Oxford Hip Score, and Hip Dysfunction and Osteoarthritis Outcome Score) were collected.

resultsThere were more than 75% women in both groups. The mean age was 64.5 years in the fracture group and 65.1 in the control group. Results for DXA measured for lumbar spine, total hip and the femoral neck showed that patients with displaced FNF were significantly more osteoporotic. Fracture patients had significantly lower body mass index, higher Charlson comorbidity index (CCI), and higher ASA (American Society of Anesthesiologists) score than the control group. No clinically relevant differences in hip function were found. There were 48% smokers in the fracture group compared to 10% in the control group. The odds ratio for obtaining a displaced FNF was high if the patients suffered from osteoporosis, smoked or had several comorbidities.

conclusionsThis study showed that patients aged 55-70 years with a displaced femoral neck fracture had lower bone density and higher comorbidity compared with a gender- and age-matched population without femoral neck fractures. This suggests that this patient group is epidemiologically similar to older patients with femoral neck fractures.

Indexed as

Absorptiometry, PhotonAgedArthroplasty, Replacement, HipBone DensityCase-Control StudiesComorbidityFemaleFemoral Neck FracturesFemur NeckHip DislocationHumansLumbar VertebraeMaleMiddle AgedNorwayOsteoporosisBone mineral densityComorbidityFemoral neck fractureOsteoporosis

Identifiers

PMID31409337
PMCPMC6692959
OpenAlexW2968396542

What OpenQuestion holds

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LicenceCC BY
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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.