Evidence map›Paper›PMID 21085935›Full record

ReviewOsteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA2011

Subtrochanteric fractures after long-term treatment with bisphosphonates: a European Society on Clinical and Economic Aspects of Osteoporosis and Osteoarthritis, and International Osteoporosis Foundation Working Group Report.

R Rizzoli, K Akesson, M Bouxsein, J A Kanis, N Napoli, S Papapoulos, J-Y Reginster, C Cooper

Open access · hybridAbstract readReview
In one paragraph

Review in Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 87 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
87citing papers in PubMed, 6 pooled it
25.7field-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

87 citing papers in PubMed, 6 syntheses or guidelines pooled it, 247 citations in OpenAlex.

  1. European guidance for the diagnosis and management of osteoporosis in postmenopausal women.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2019
    Guideline
  2. Pooled it
  3. Recommendations for preventing fracture in long-term care.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2015
    Guideline
  4. Pooled it
  5. European guidance for the diagnosis and management of osteoporosis in postmenopausal women.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2013
    Guideline
  6. A framework for the development of guidelines for the management of glucocorticoid-induced osteoporosis.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2012
    Pooled it
  7. The effect of 3 versus 6 years of zoledronic acid treatment of osteoporosis: a randomized extension to the HORIZON-Pivotal Fracture Trial (PFT).Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2012
    Trial
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  13. Long-term and sequential treatment for osteoporosis.Nature reviews. Endocrinology · 2023
    Review
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27 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

8 authors at 8 institutions in 7 countries.

R RizzoliDivision of Bone Diseases, Department of Rehabilitation and Geriatrics, University Hospitals and Faculty of Medicine of Geneva, 1211, Geneva 14, Switzerland. Rene.Rizzoli@unige.ch
K Akesson
M Bouxsein
J A Kanis
N Napoli
S Papapoulos
J-Y Reginster
C Cooper
Beth Israel Deaconess Medical Center · USLeiden University Medical Center · NLSkåne University Hospital · SEUniversità Campus Bio-Medico · ITUniversity Hospital of Geneva · CHUniversity of Liège · BEUniversity of Sheffield · GBUniversity of Southampton · GB

Funding

Medical Research Council MC_UP_A620_1014
6 · The paper itself

Abstract

unlabelledThis paper reviews the evidence for an association between atypical subtrochanteric fractures and long-term bisphosphonate use. Clinical case reports/reviews and case-control studies report this association, but retrospective phase III trial analyses show no increased risk. Bisphosphonate use may be associated with atypical subtrochanteric fractures, but the case is yet unproven.

introductionA Working Group of the European Society on Clinical and Economic Aspects of Osteoporosis and Osteoarthritis and the International Osteoporosis Foundation has reviewed the evidence for a causal association between subtrochanteric fractures and long-term treatment with bisphosphonates, with the aim of identifying areas for further research and providing recommendations for physicians.

methodsA PubMed search of literature from 1994 to May 2010 was performed using key search terms, and articles pertinent to subtrochanteric fractures following bisphosphonate use were analysed.

resultsSeveral clinical case reports and case reviews report a possible association between atypical fractures at the subtrochanteric region of the femur in bisphosphonate-treated patients. Common features of these 'atypical' fractures include prodromal pain, occurrence with minimal/no trauma, a thickened diaphyseal cortex and transverse fracture pattern. Some small case-control studies report the same association, but a large register-based study and retrospective analyses of phase III trials of bisphosphonates do not show an increased risk of subtrochanteric fractures with bisphosphonate use. The number of atypical subtrochanteric fractures in association with bisphosphonates is an estimated one per 1,000 per year. It is recommended that physicians remain vigilant in assessing their patients treated with bisphosphonates for the treatment or prevention of osteoporosis and advise patients of the potential risks.

conclusionsBisphosphonate use may be associated with atypical subtrochanteric fractures, but the case is unproven and requires further research. Were the case to be proven, the risk-benefit ratio still remains favourable for use of bisphosphonates to prevent fractures.

Indexed as

AdultAgedAged, 80 and overBone Density Conservation AgentsDiphosphonatesFemaleFractures, SpontaneousHip FracturesHumansMaleMiddle AgedOsteoporosisRiskBone Density Conservation AgentsDiphosphonates

Identifiers

PMID21085935
PMCPMC3020314
OpenAlexW1964983463

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.