Evidence map›Paper›PMID 24786905›Full record

ArticleActa orthopaedica2014

Histology of 8 atypical femoral fractures: remodeling but no healing.

Jörg Schilcher, Olof Sandberg, Hanna Isaksson, Per Aspenberg

Open access · goldAbstract readCase Reports
In one paragraph

Article in Acta orthopaedica, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
6.7field-weighted citation impact, top 3% 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

29 citing papers in PubMed, 70 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Review
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  7. Article
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  9. Article
  10. Atraumatic fractures of the femur.The British journal of radiology · 2021
    Review
  11. Article
  12. Atypical femoral neck fracture after prolonged bisphosphonate therapy.Journal of pathology and translational medicine · 2020
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Lateral fixation: an alternative surgical approach in the prevention of complete atypical femoral fractures.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2018
    Article
  19. Undisturbed local bone formation capacity in patients with atypical femoral fractures: a case series.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2017
    Article
  20. Understanding Bone Strength Is Not Enough.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2017
    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

4 authors at 1 institution in 1 country.

Jörg SchilcherOrthopedics Section, Department of Clinical and Experimental Medicine, Faculty of Health Science , Linköping University.
Olof Sandberg
Hanna Isaksson
Per Aspenberg
Linköping University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeThe pathophysiology behind bisphosphonate-associated atypical femoral fractures remains unclear. Histological findings at the fracture site itself may provide clues. PATIENTS AND

methodsBetween 2008 and 2013, we collected bone biopsies including the fracture line from 4 complete and 4 incomplete atypical femoral fractures. 7 female patients reported continuous bisphosphonate use for 10 years on average. 1 patient was a man who was not using bisphosphonates. Dual-energy X-ray absorptiometry of the hip and spine showed no osteoporosis in 6 cases. The bone biopsies were evaluated by micro-computed tomography, infrared spectroscopy, and qualitative histology.

resultsIncomplete fractures involved the whole cortical thickness and showed a continuous gap with a mean width of 180 µm. The gap contained amorphous material and was devoid of living cells. In contrast, the adjacent bone contained living cells, including active osteoclasts. The fracture surfaces sometimes consisted of woven bone, which may have formed in localized defects caused by surface fragmentation or resorption.

interpretationAtypical femoral fractures show signs of attempted healing at the fracture site. The narrow width of the fracture gap and its necrotic contents are compatible with the idea that micromotion prevents healing because it leads to strains within the fracture gap that preclude cell survival.

Indexed as

Absorptiometry, PhotonAgedAged, 80 and overBiopsyBone DensityBone RemodelingBone ResorptionCell SurvivalDiphosphonatesFemaleFemoral FracturesFemurHumansMaleMiddle AgedOsteoclastsDiphosphonates

Identifiers

PMID24786905
PMCPMC4062796
OpenAlexW1900155916

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.