Evidence map›Paper›PMID 23408697›Full record

SynthesisJournal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research2013

Bisphosphonates and risk of subtrochanteric, femoral shaft, and atypical femur fracture: a systematic review and meta-analysis.

Lydia Gedmintas, Daniel H Solomon, Seoyoung C Kim

Open access · bronzeAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 99 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
99citing papers in PubMed, 8 pooled it
24.9field-weighted citation impact, top 1% 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

99 citing papers in PubMed, 8 syntheses or guidelines pooled it, 257 citations in OpenAlex.

  1. Pooled it
  2. Guideline
  3. Atypical fractures at non-classical sites associated with anti-resorptive therapy: a systematic review.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2024
    Pooled it
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  5. Pooled it
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  8. Guideline
  9. Effect of calcifediol and cholecalciferol on muscle function in postmenopausal women: a randomized controlled trial.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2025
    Trial
  10. Safety of long-term denosumab therapy: results from the open label extension phase of two phase 3 studies in patients with metastatic breast and prostate cancer.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2016
    Trial
  11. Non-union after bisphosphonate-associated atypical femoral fractures: a review of the current literature.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2026
    Review
  12. Article
  13. Femur geometry influences atypical femoral fracture location.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2025
    Article
  14. Review
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39 more citing papers are in PubMed but not listed here.

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

3 authors at 1 institution in 1 country.

Lydia GedmintasDivision of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Boston, MA, USA. lgedmintas@partners.org
Daniel H Solomon
Seoyoung C Kim
Brigham and Women's Hospital · US

Funding

Trial of risk mangement for prevention of accelerated atherosclerosis in SLEP60AR047782 · NIAMS · BRIGHAM AND WOMEN'S HOSPITAL · PI SOLOMON, DANIEL HAL · 2001 to 2016
$18.8M
Training in Orthopaedic and Musculoskeletal Clinical ResearchT32AR055885 · NIAMS · BRIGHAM AND WOMEN'S HOSPITAL · PI KATZ, JEFFREY NEIL, LOSINA, ELENA · 2008 to 2023
$4.0M
Modifiable Disparities in Treatment for Rheumatoid ArthritisR01AR056215 · NIAMS · BRIGHAM AND WOMEN'S HOSPITAL · PI SOLOMON, DANIEL HAL · 2009 to 2012
$1.9M
Patient Centered Outcomes Research in RheumatologyK24AR055989 · NIAMS · BRIGHAM AND WOMEN'S HOSPITAL · PI SOLOMON, DANIEL HAL · 2008 to 2017
$1.5M
Cervical Dysplasia and Human Papillomavirus Infection in Rheumatoid Arthritis.K23AR059677 · NIAMS · BRIGHAM AND WOMEN'S HOSPITAL · PI KIM, SEOYOUNG CATHERINE · 2010 to 2014
$680k
Osteonecrosis of the Jaw in Non-Cancer Patients Using BisphosphonatesR21DE018750 · NIDCR · BRIGHAM AND WOMEN'S HOSPITAL · PI SOLOMON, DANIEL HAL · 2009 to 2010
$489k
NIAMS NIH HHS K23 AR059677NIAMS NIH HHS K24 AR055989NIAMS NIH HHS P60 AR047782NIAMS NIH HHS R01 AR056215NIAMS NIH HHS T32 AR055885NIAMS NIH HHS T32AR055885‐04NIDCR NIH HHS R21 DE018750
6 · The paper itself

Abstract

Although there is strong evidence that bisphosphonates prevent certain types of osteoporotic fractures, there are concerns that these medications may be associated with rare atypical femoral fractures (AFF). Recent published studies examining this potential association are conflicting regarding the existence and strength of this association. We conducted a systematic review and meta-analysis of published studies examining the association of bisphosphonates with subtrochanteric, femoral shaft, and AFF. The random-effects model was used to calculate the pooled estimates of adjusted risk ratios (RR). Subgroup analysis was performed by study design, for studies that used validated outcome definitions for AFF, and for studies reporting on duration of bisphosphonate use. Eleven studies were included in the meta-analysis: five case-control and six cohort studies. Bisphosphonate exposure was associated with an increased risk of subtrochanteric, femoral shaft, and AFF, with adjusted RR of 1.70 (95% confidence interval [CI], 1.22-2.37). Subgroup analysis of studies using the American Society for Bone and Mineral Research criteria to define AFF suggests a higher risk of AFF, with bisphosphonate use with RR of 11.78 (95% CI, 0.39-359.69) as compared to studies using mainly diagnosis codes (RR, 1.62; 95% CI, 1.18-2.22), although there is a wide confidence interval and severe heterogeneity (I(2)  = 96.15%) in this subgroup analysis. Subgroup analysis of studies examining at least 5 years of bisphosphonate use showed adjusted RR of 1.62 (95% CI, 1.29-2.04). This meta-analysis suggests there is an increased risk of subtrochanteric, femoral shaft, and AFF among bisphosphonate users. Further research examining the risk of AFF with long-term use of bisphosphonates is indicated as there was limited data in this subgroup. The public health implication of this observed increase in AFF risk is not clear.

Indexed as

AgedAged, 80 and overCase-Control StudiesCohort StudiesDiphosphonatesFemoral FracturesHip FracturesHumansPublication BiasRisk FactorsDiphosphonatesATYPICAL FEMUR FRACTUREBISPHOSPHONATESFEMORAL SHAFT FRACTUREOSTEOPOROSISSUBTROCHANTERIC FRACTURE

Identifiers

PMID23408697
PMCPMC3713078
OpenAlexW1526267197

What OpenQuestion holds

Textmetadata
LicenceTDM
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.