Evidence map›Paper›PMID 33215149›Full record

ArticleBone & joint open2020

Long-term bisphosphonate treatment coupled with ovariectomy in mice provokes deleterious effects on femoral neck fracture pattern and modifies tibial shape.

Samuel Monzem, Rafael Y Ballester, Behzad Javaheri, Blandine Poulet, Dábila A Sônego, Andrew A Pitsillides, Roberto L Souza

Open access · goldAbstract read
In one paragraph

Article in Bone & joint open, 2020. 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
0.7field-weighted citation impact, top 33% 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

7 authors at 4 institutions in 2 countries.

Samuel MonzemVeterinary College, Federal University of Mato Grosso, Cuiaba, Mato Grosso, Brazil.
Rafael Y BallesterBiomaterials and Oral Biology Department, University of São Paulo, São Paulo, Brazil.
Behzad JavaheriThe Skeletal Biology Group - Comparative Biomedical Sciences, Royal Veterinary College, London, UK.
Blandine PouletMusculoskeletal Biology group, University of Liverpool Institute of Ageing and Chronic Disease, Liverpool, UK.
Dábila A SônegoVeterinary College, Federal University of Mato Grosso, Cuiaba, Mato Grosso, Brazil.
Andrew A PitsillidesThe Skeletal Biology Group - Comparative Biomedical Sciences, Royal Veterinary College, London, UK.
Roberto L SouzaVeterinary College, Federal University of Mato Grosso, Cuiaba, Mato Grosso, Brazil.
Royal Veterinary College · GBUniversidade Federal de Mato Grosso · BRUniversidade de São Paulo · BRUniversity of Liverpool · GB

Funding

Medical Research Council MR/P020941/1
6 · The paper itself

Abstract

aimsThe processes linking long-term bisphosphonate treatment to atypical fracture remain elusive. To establish a means of exploring this link, we have examined how long-term bisphosphonate treatment with prior ovariectomy modifies femur fracture behaviour and tibia mass and shape in murine bones.

methodsThree groups (seven per group) of 12-week-old mice were: 1) ovariectomized and 20 weeks thereafter treated weekly for 24 weeks with 100 μm/kg subcutaneous ibandronate (OVX+IBN); 2) ovariectomized (OVX); or 3) sham-operated (SHAM). Quantitative fracture analysis generated biomechanical properties for the femoral neck. Tibiae were microCT scanned and trabecular (proximal metaphysis) and cortical parameters along almost its whole length measured.

resultsFracture analyses revealed that OVX+IBN significantly reduced yield displacement (vs SHAM/OVX) and resilience, and increased stiffness (vs SHAM). OVX+IBN elevated tibial trabecular parameters and also increased cortical cross-sectional area and second moment of area around minor axis, and diminished ellipticity proximally.

conclusionThese data indicate that combined ovariectomy and bisphosphonate generates cortical changes linked with greater bone brittleness and modified fracture characteristics, which may provide a basis in mice for interrogating the mechanisms and genetics of atypical fracture aetiology.Cite this article:

Indexed as

Biomechanical propertiesbone geometrybone qualitybone strengthIbandronate

Identifiers

PMID33215149
PMCPMC7659644
OpenAlexW3082668030

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.