Evidence map›Paper›PMID 34945096›Full record

ArticleJournal of clinical medicine2021

Associations between Early Surgery and Postoperative Outcomes in Elderly Patients with Distal Femur Fracture: A Retrospective Cohort Study.

Norio Yamamoto, Hiroyuki Ohbe, Yosuke Tomita, Takashi Yorifuji, Mikio Nakajima, Yusuke Sasabuchi, Yuki Miyamoto, Hiroki Matsui, Tomoyuki Noda, Hideo Yasunaga

Open access · goldAbstract read
In one paragraph

Article in Journal of clinical medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 14% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. 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

10 authors at 6 institutions in 1 country.

Norio YamamotoDepartment of Orthopedic Surgery, Miyamoto Orthopedic Hospital, Okayama 773-8236, Japan.ORCID 0000-0002-7902-9994
Hiroyuki OhbeDepartment of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo 113-0033, Japan.ORCID 0000-0001-8544-2569
Yosuke TomitaDepartment of Physical Therapy, Faculty of Health Care, Takasaki University of Health and Welfare, Takasaki 370-0033, Japan.ORCID 0000-0003-1205-165X
Takashi YorifujiDepartment of Epidemiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan.
Mikio NakajimaDepartment of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo 113-0033, Japan.ORCID 0000-0002-2903-1092
Yusuke SasabuchiData Science Center, Jichi Medical University, Tochigi 329-0498, Japan.
Yuki MiyamotoDepartment of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo 113-0033, Japan.
Hiroki MatsuiDepartment of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo 113-0033, Japan.
Tomoyuki NodaDepartment of Orthopaedic Surgery and Traumatology, Kawasaki Medical School General Medical Center, Okayama 700-8505, Japan.ORCID 0000-0002-7066-1774
Hideo YasunagaDepartment of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo 113-0033, Japan.
The University of Tokyo · JPOkayama University · JPJichi Medical University · JPKawasaki Medical School · JPKyoto Prefectural University of Medicine · JPTakasaki University of Health and Welfare · JP

Funding

the Ministry of Education, Culture, Sports, Science and Technology, Japan 20H03907the Ministry of Health, Labour and Welfare, Japan 21AA2007 and 20AA2005
6 · The paper itself

Abstract

Previous literature has provided conflicting results regarding the associations between early surgery and postoperative outcomes in elderly patients with distal femur fractures. Using data from the Japanese Diagnosis Procedure Combination inpatient database from April 2014 to March 2019, we identified elderly patients who underwent surgery for distal femur fracture within two days of hospital admission (early surgery group) or at three or more days after hospital admission (delayed surgery group). Of 9678 eligible patients, 1384 (14.3%) were assigned to the early surgery group. One-to-one propensity score matched analyses showed no significant difference in 30-day mortality between the early and delayed groups (0.5% versus 0.5%; risk difference, 0.0%; 95% confidence interval, -0.7% to 0.7%). Patients in the early surgery group had significantly lower proportions of the composite outcome (death or postoperative complications), shorter hospital stays, and lower total hospitalization costs than patients in the delayed surgery group. Our results showed that early surgery within two days of hospital admission for geriatric distal femur fracture was not associated with a reduction in 30-day mortality but was associated with reductions in postoperative complications and total hospitalization costs.

Indexed as

complicationsdatabasedistal femur fracturelength of hospital staymedical costsmortalitysurgical timing

Identifiers

PMID34945096
PMCPMC8705557
OpenAlexW4200435271

What OpenQuestion holds

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LicenceCC BY
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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.