Evidence map›Paper›PMID 22179584›Full record

ArticleCalcified tissue international2012

Knee arthroplasty and risk of hip fracture: a population-based, case-control study.

Arief Lalmohamed, Frans Opdam, Nigel K Arden, Daniel Prieto-Alhambra, Tjeerd van Staa, Hubertus G M Leufkens, Frank de Vries

Open access · hybridAbstract read
In one paragraph

Article in Calcified tissue international, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
3.2field-weighted citation impact, top 9% 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

8 citing papers in PubMed, 20 citations in OpenAlex.

  1. QCT bone mineral density responses to 1 year of oral bisphosphonate after total knee replacement for knee osteoarthritis.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2013
    Trial
  2. Prophylactic femoral neck fixation in distal femur fractures: evaluating protection against ipsilateral hip fracture.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2026
    Article
  3. Article
  4. Risk for hip fracture before and after total knee replacement in Sweden.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2020
    Article
  5. Review
  6. A study investigating short- and medium-term effects on function, bone mineral density and lean tissue mass post-total knee replacement in a Caucasian female post-menopausal population: implications for hip fracture risk.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2016
    Article
  7. Observational
  8. 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 5 institutions in 3 countries.

Arief LalmohamedDivision of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands.
Frans Opdam
Nigel K Arden
Daniel Prieto-Alhambra
Tjeerd van Staa
Hubertus G M Leufkens
Frank de Vries
Oxford BioMedica (United Kingdom) · GBUtrecht University · NLLeiden University · NLMaastricht University Medical Centre · NLUniversity of Southampton · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The majority of knee arthroplasties (KAs) are performed in patients with osteoarthritis (OA). Although bone mass may be increased in these patients, subjects with knee OA may have an increased risk of hip fracture, possibly due to an increased severity of falls. However, in patients with KAs, risk of hip fracture has not been studied extensively. We evaluated the association between KAs and hip fracture risk in a population-based case-control study using the Dutch PHARMO Record Linkage System (1991-2002, n = 33,104). Cases were patients with a first admission for hip fracture; controls were matched by age, gender, and geographic location. Neither group had a previous history of fracture. Time since first KA was calculated. Analyses were adjusted for disease and drug history. A 54% increased hip fracture risk was found in patients who underwent KA (adjusted [adj.] OR = 1.54, 95% CI 1.19-2.00). We found a strong effect modification by age in these patients: the youngest patients (aged 18-70 years) were at more increased risk for hip fracture (adj. OR = 2.76, 95% CI 1.16-6.59), while we could not detect a statistical increase in patients aged >80 years. Furthermore, the association tended to be greater during the first few years after surgery, although it did not reach statistical significance. We found that KAs are associated with a 54% increased risk of hip fracture, in particular among adult patients aged <71 years old. Fracture risk assessment could be considered in patients who are about to undergo a KA.

Indexed as

Arthroplasty, Replacement, KneeAdolescentAdultAgedAged, 80 and overAge FactorsCase-Control StudiesFemaleHip FracturesHumansMaleMiddle AgedOdds RatioOsteoarthritisRisk FactorsYoung Adult

Identifiers

PMID22179584
PMCPMC3271227
OpenAlexW1982964999

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.