Evidence map›Paper›PMID 26833068›Full record

ArticleBMC musculoskeletal disorders2016

Perioperative risk factors in patients with a femoral neck fracture - influence of 25-hydroxyvitamin D and C-reactive protein on postoperative medical complications and 1-year mortality.

Johannes K M Fakler, Antonia Grafe, Jamila Dinger, Christoph Josten, Gabriela Aust

Open access · goldAbstract read
In one paragraph

Article in BMC musculoskeletal disorders, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
3.1field-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

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.

  1. Pooled it
  2. 25-Hydroxyvitamin D Levels, Free Serum Calcium, Glomerular Filtration Rate, Albumin, and Femoral Fracture Elderly Patient Mortality.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2026
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  16. Can C-reactive protein-based biomarkers be used as predictive of 30-day mortality in elderly hip fractures?A retrospective study.Ulusal travma ve acil cerrahi dergisi = Turkish journal of trauma & emergency surgery : TJTES · 2022
    Article
  17. Risk factors for intraoperative greater trochanteric fractures in hemiarthroplasty for intracapsular femoral neck fractures.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2022
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  18. Article
  19. Relatively low and moderate pre-fracture serum 25-hydroxyvitamin D levels associated with the highest survival in elderly hip fracture patients in Finland: a minimum 3-year follow-up.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2022
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  20. Observational
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

5 authors at 1 institution in 1 country.

Johannes K M FaklerDepartment of Orthopedics, Trauma and Plastic Surgery, University Hospital Leipzig AöR, Liebigstr. 20, 04103, Leipzig, Germany. johannes.fakler@medizin.uni-leipzig.de.
Antonia GrafeDepartment of Orthopedics, Trauma and Plastic Surgery, University Hospital Leipzig AöR, Liebigstr. 20, 04103, Leipzig, Germany. antonia.grafe@web.de.
Jamila DingerDepartment of Orthopedics, Trauma and Plastic Surgery, University Hospital Leipzig AöR, Liebigstr. 20, 04103, Leipzig, Germany. jamila.dinger@gmail.com.
Christoph JostenDepartment of Orthopedics, Trauma and Plastic Surgery, University Hospital Leipzig AöR, Liebigstr. 20, 04103, Leipzig, Germany. christoph.josten@medizin.uni-leipzig.de.
Gabriela AustResearch Laboratories of the Department of Orthopedics, Trauma and Plastic Surgery, University Hospital of Leipzig AöR, Liebigstr. 20, Leipzig, 04103, Germany. gabriela.aust@medizin.uni-leipzig.de.
University Hospital Leipzig · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis study examined the association of 25-hydroxyvitamin D (25(OH)D) and C-reactive protein (CRP) with postoperative medical complications and one year mortality of elderly patients sustaining a low-energy cervical hip fracture scheduled for surgery. We hypothesized that vitamin D deficiency and CRP in these patients might be associated with an increased 1-year mortality.

methodsThe prospective single-center cohort study included 209 patients with a low-energy medial femoral neck fracture; 164 women aged over 50 years and 45 men aged over 60 years. Referring to 1-year mortality and postoperative medical complications multiple logistic regression analysis including 10 co-variables (age, sex, BMI, ASA, creatinine, CRP, leukocytes hemoglobin, 25(OH)D, vitamin D supplementation at follow-up) was performed.

resultsVitamin D deficiency was prevalent in 87 % of all patients. In patients with severe (<10 ng/ml) and moderate (10-20 ng/ml) vitamin D deficiency one year mortality was 29 % and 13 %, respectively, compared to 9 % in patients with > 20 ng/ml 25(OH)D levels (p =0.027). Patients with a mild (CRP 10-39.9 mg/l) or active inflammatory response (CRP ≥ 40 mg/l) showed a higher one year mortality of 33 % and 40 % compared to 16 % in patients with no (CRP < 10 mg/l) inflammatory response (p = 0.002). Multiple logistic regression analysis identified CRP (OR 1.01, 95 % CI 1.00-1.02; p = 0.007), but not 25(OH)D (OR 0.97, 95 % CI 0.89-1.05; p = 0.425) as an independent predictor for one year mortality. 20 % of patients suffered in-hospital postoperative medical complications (i.e. pneumonia, thromboembolic events, etc.). 25(OH)D (OR 0.89, 95 % CI 0.81-0.97; p = 0.010), but not CRP (OR 1.01, 95 % CI 1.00-1.02; p = 0.139), was identified as an independent risk factor.

conclusionIn elderly patients with low-energy cervical hip fracture, 25(OH)D is independently associated with postoperative medical complications and CRP is an independent predictor of one year mortality.

Indexed as

AgedAged, 80 and overAge FactorsBiomarkersC-Reactive ProteinFemaleFemoral Neck FracturesFracture FixationGermanyHumansInflammationKaplan-Meier EstimateLogistic ModelsMaleMiddle AgedOdds Ratio25-hydroxyvitamin DBiomarkersC-Reactive ProteinVitamin D

Identifiers

PMID26833068
PMCPMC4736308
OpenAlexW2262194310

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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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.