Evidence map›Paper›PMID 19066707›Full record

ArticleOsteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA2009

Association of low-energy femoral fractures with prolonged bisphosphonate use: a case control study.

B A Lenart, A S Neviaser, S Lyman, C C Chang, F Edobor-Osula, B Steele, M C H van der Meulen, D G Lorich, J M Lane

Open access · greenAbstract read
In one paragraph

Article in Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 136 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
136citing papers in PubMed, 7 pooled it
31.0field-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

136 citing papers in PubMed, 7 syntheses or guidelines pooled it, 384 citations in OpenAlex.

  1. Pooled it
  2. The effects of weight loss approaches on bone mineral density in adults: a systematic review and meta-analysis of randomized controlled trials.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2016
    Pooled it
  3. Pooled it
  4. Bisphosphonates and risk of subtrochanteric, femoral shaft, and atypical femur fracture: a systematic review and meta-analysis.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2013
    Pooled it
  5. Pooled it
  6. Osteoporosis drug therapy strategies in the setting of disease-modifying agents for autoimmune disease.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2013
    Pooled it
  7. Pooled it
  8. Assessing the feasibility of the Effectiveness of Discontinuing Bisphosphonates trial: a pilot study.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2017
    Trial
  9. Risk communication methods in hip fracture prevention: a randomised trial in primary care.The British journal of general practice : the journal of the Royal College of General Practitioners · 2011
    Trial
  10. Article
  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
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76 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

B A LenartHospital for Special Surgery, New York, NY 10021, USA.
A S Neviaser
S Lyman
C C Chang
F Edobor-Osula
B Steele
M C H van der Meulen
D G Lorich
J M Lane
Hospital for Special Surgery · USCornell University · US

Funding

FT-IR MICROSCOPY OF MINERAL STRUCTURE IN OSTEOPOROSISR01AR041325 · NIAMS · HOSPITAL FOR SPECIAL SURGERY · PI GOLDRING, MARY B · 1993 to 2017
$9.2M
NIAMS NIH HHS R01 AR041325PHS HHS R01-ARO41325
6 · The paper itself

Abstract

summaryRecent evidence has linked long-term bisphosphonate use with insufficiency fractures of the femur in postmenopausal women. In this case-control study, we have identified a significant association between a unique fracture of the femoral shaft, a transverse fracture in an area of thickened cortices, and long-term bisphosphonate use. Further studies are warranted.

introductionAlthough clinical trials confirm the anti-fracture efficacy of bisphosphonates over 3-5 years, the long-term effects of bisphosphonate use on bone metabolism are unknown. Femoral insufficiency fractures in patients on prolonged treatment have been reported.

methodsWe performed a retrospective case-control study of postmenopausal women who presented with low-energy femoral fractures from 2000 to 2007. Forty-one subtrochanteric and femoral shaft fracture cases were identified and matched by age, race, and body mass index to one intertrochanteric and femoral neck fracture each.

resultsBisphosphonate use was observed in 15 of the 41 subtrochanteric/shaft cases, compared to nine of the 82 intertrochanteric/femoral neck controls (Mantel-Haenszel odds ratio (OR), 4.44 [95% confidence interval (CI) 1.77-11.35]; P = 0.002). A common X-ray pattern was identified in ten of the 15 subtrochanteric/shaft cases on a bisphosphonate. This X-ray pattern was highly associated with bisphosphonate use (OR, 15.33 [95% CI 3.06-76.90]; P < 0.001). Duration of bisphosphonate use was longer in subtrochanteric/shaft cases compared to both hip fracture controls groups (P = 0.001).

conclusionsWe found a significantly greater proportion of patients with subtrochanteric/shaft fractures to be on long-term bisphosphonates than intertrochanteric/femoral neck fractures. Bisphosphonate use was highly associated with a unique X-ray pattern. Further studies are warranted.

Indexed as

AgedAged, 80 and overBody Mass IndexBone Density Conservation AgentsCase-Control StudiesDiphosphonatesDrug Administration ScheduleFemaleFemoral FracturesFemoral Neck FracturesHumansOsteoporosis, PostmenopausalRadiographyBone Density Conservation AgentsDiphosphonates

Identifiers

PMID19066707
PMCPMC4415520
OpenAlexW2094638050

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.