Evidence map›Paper›PMID 34725415›Full record

ArticleScientific reports2021

Treatment of Pauwels type III femoral neck fracture with medial femoral neck support screw: a biomechanical and clinical study.

Zhichao Gao, Mei Wang, Baojie Shen, Xiaodong Chu, Di Ruan

Open access · goldAbstract read
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 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 8% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. The correlation between biomechanical experiments and clinical studies in orthopedics: a systematic review.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025
    Pooled it
  2. [Positive cortical support reduction in treatment of trochanteric femur fractures: history in theory establishment and its inspiration for clinical innovations].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026
    Review
  3. Article
  4. Article
  5. [Effectiveness of guide plate with mortise-tenon joint structure combined with off-axis fixation in treatment of Pauwels typeZhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2025
    Article
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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 2 institutions in 1 country.

Zhichao GaoDepartment of Orthopedics, Yuhang Campus, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.
Mei WangIntensive Care Unit, Yuhang Campus, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China. gaohancong@gmail.com.
Baojie ShenHangzhou Normal University School of Medicine, Hangzhou, China.
Xiaodong ChuDepartment of Orthopedics, Yuhang Campus, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.
Di RuanHangzhou Normal University School of Medicine, Hangzhou, China.
Second Affiliated Hospital of Zhejiang University · CNHangzhou Normal University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A femoral neck fracture is currently one of the most common types of fracture in clinical practice. The incidence continues to increase due to traffic accidents, trauma, and osteoporosis. This research includes a biomechanical study and a clinical retrospective study. In the biomechanical studies, three groups' effects (Control Group: 3CCS, DHS group, and study Group: 3CCS + mFNSS group) were compared by vertical compression tests, torsion tests, and fatigue tests. All the data were collected and analyzed. We subsequently performed a retrospective analysis of 131 patients with femoral neck fractures. The operative time, intraoperative blood loss, quality of postoperative fracture reduction, and follow-up observation of fracture healing, screw retreatment rates and fixation failure rates, as well as femoral head necrosis rates and hip function in two groups with 3CCS and 3CCS + mFNSS were compared. By the biomechanical study, we found that 3CCS + Mfnss group were biomechanically superior to 3CCS group and superior to the DHS group in terms of resistance to torsion. However, it was less effective than the DHS group in compressive strength and fatigue resistance. In terms of clinical application, 3CCS + mFNSS group was found to have lower screw retreatment rates and femoral head necrosis rates, and to have better fracture healing rates than group with 3CCS, indicating that medial support screws can effectively resist the vertical shear forces of fracture ends and promote the stability and healing of fracture ends, as well as to reduce the incidence of postoperative complications.

Indexed as

Bone ScrewsAdultAgedBiomechanical PhenomenaBlood Loss, SurgicalCompressive StrengthEquipment DesignFemaleFemoral Neck FracturesFemur NeckFracture FixationFracture Fixation, InternalFracture HealingHumansMaleMiddle Aged

Identifiers

PMID34725415
PMCPMC8560750
OpenAlexW3209711443

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.