Evidence map›Paper›PMID 34728709›Full record

ArticleScientific reports2021

Multiple screw fixation versus cementless bipolar hemiarthroplasty for femur neck fracture using a nationwide hip fracture registry.

Jin-Woo Kim, Kyung-Soon Park, Young-Kyun Lee, Ji Wan Kim, Yong-Chan Ha, Seung-Hoon Baek

Open access · goldAbstract readComparative Study
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–field-weighted citation impact, top 76% 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

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

  1. Screw fixation versus hemiarthroplasty for undisplaced femoral neck fractures in the elderly: a meta-analysis.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025
    Pooled it
  2. 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

6 authors at 6 institutions in 1 country.

Jin-Woo KimDepartment of Orthopaedic Surgery, Nowon Eulji Medical Center, Eulji University, Seoul, Korea.
Kyung-Soon ParkDepartment of Orthopedic Surgery, Center for Joint Disease, Chonnam National University Hwasun Hospital, Hwasun, Korea.
Young-Kyun LeeDepartment of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seongnam, Korea.
Ji Wan KimDepartment of Orthopedic Surgery, Asan Medical Center, Ulsan University, College of Medicine, Seoul, Korea.
Yong-Chan HaDepartment of Orthopaedic Surgery, Chung-Ang University Hospital, Chung-Ang University School of Medicine, Seoul, Korea.
Seung-Hoon BaekDepartment of Orthopedic Surgery, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, 130, Dongdeok-ro, Jung-Gu, Daegu, 41944, Korea. insideme@paran.com.
Asan Medical Center · KRChonnam National University Hwasun Hospital · KRChung-Ang University Hospital · KREulji University · KRKyungpook National University Hospital · KRSeoul National University Bundang Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cementless bipolar hemiarthroplasty (BHA) recently gained popularity as a treatment for femur neck fracture (FNF), but there have been few studies comparing this with multiple screw fixation (MSF) in the elderly population. The purpose of this study is to compare (1) surgery-related parameters, (2) reoperation rate as a local complication, (3) in-hospital systemic complication rate, and (4) mortality rate at 1 year after MSF and cementless BHA in patients with FNF using nationwide data. Six-hundred sixty-six hips (aged ≥ 50 years) extracted from nationwide Hip Fracture Registry were included in this study (133 MSF and 533 cementless BHA). One hundred fifty-six hips were divided into nondisplaced FNF (Group A) and 510 into displaced FNF (Group B). We evaluated (1) surgery-related parameters (anesthesia type, time to surgery, operation time, estimated blood loss and volume of postoperative transfusion), (2) the rate of and reasons for reoperation, (3) the rate and type of in-hospital systemic complications and (4) one-year mortality rate after surgery. In Group A, MSF showed shorter operation time (p = 0.004) and lower incidence of in-hospital systemic complications (p = 0.003). In Group B, cementless BHA demonstrated lower reoperation rate than MSF (p < 0.001). In both Group A and B, cementless BHA was associated with higher estimated blood loss than MSF (p < 0.001). Based on findings in our study, MSF might be a more favorable option for nondisplaced FNF, whereas cementless BHA might be a better one for displaced FNF in patients older than fifty. Nevertheless, our nationwide study also showed that numbers of cementless BHAs were being performed for nondisplaced FNF even in teaching hospitals.

Indexed as

AgedBone ScrewsFemaleFemoral Neck FracturesFollow-Up StudiesHemiarthroplastyHip FracturesHumansMalePelvic BonesProspective StudiesRegistriesRetrospective StudiesTreatment Outcome

Identifiers

PMID34728709
PMCPMC8563976
OpenAlexW3209531422

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.