Evidence map›Paper›PMID 35848152›Full record

Trial reportOrthopaedic surgery2022

A New Method to Protect Blood Supply in the Treatment of Femoral Neck Fractures: Bidirectional Compression Porous Tantalum Screws.

Dewei Zhao, Zhijie Ma, Baoyi Liu, Lei Yang, Xing Qiu, Simiao Tian, Chukwuemeka Samuel Okoye, Zhiqiang Lian

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Orthopaedic surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 20% 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, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. [Research progress in treatment of Garden typeZhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026
    Review
  5. Article
  6. Article
  7. Article
  8. Review
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

8 authors at 2 institutions in 1 country.

Dewei ZhaoDepartment of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China.ORCID https://orcid.org/0000-0001-8611-0558
Zhijie MaDepartment of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China.ORCID https://orcid.org/0000-0001-5228-3493
Baoyi LiuDepartment of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China.
Lei YangDepartment of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China.
Xing QiuDepartment of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China.
Simiao TianDepartment of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China.
Chukwuemeka Samuel OkoyeThe Orthopedic Research Centre, Affiliated Zhongshan Hospital of Dalian University, Dalian, China.
Zhiqiang LianDepartment of Engineering Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian, China.
Affiliated Zhongshan Hospital of Dalian University · CNDalian University of Technology · CN

Funding

Dalian Science and Technology Innovation Fund Project 2018J11CY030
6 · The paper itself

Abstract

objectiveTo explore the clinical effect of a new type of bidirectional pressurized porous tantalum screw (PTS) internal fixation in treating femoral neck fractures (FNFs).

methodsIn this study, geometric models of FNF were first established via reverse engineering method, followed by stimulation of the strength of PTSs in fixation of FNFs. A randomized control trial study was then conducted of 41 patients with FNF from October 2015 to December 2018. These patients included 12 males and 29 females with an average age of 59.9. The 41 patients were randomly divided into two groups: cannulated compression screws (CCSs) group (n = 21) and PTSs group (n = 20). Treatment outcomes in patients were evaluated using multiple imaging techniques, including X-ray and digital subtraction angiography scanning as well as functional recovery Harris hip score. Without other postoperative complications, the primary outcome was defined as fracture healing after FNF internal fixation. Secondary outcomes are the incidence of the avascular necrosis of femoral head (ANFH), fracture nonunion, and reoperation rate.

resultsFollowing PTS internal fixation of FNF, finite element results revealed a firmly fixed fracture with a slight displacement of less than 0.5 mm. At follow-up, we found a statistically significant difference in Harris scores in the two groups at 1 month and 3 months post-surgery. In the PTSs group, there was no case of ANFH and fracture nonunion, and the average healing time was 94.45 ± 6.47 days. In the CCSs group, there were four cases of ANFH, the necrosis rate was 19.05% (4/21). There was one case of fracture nonunion in the CCSs group, the nonunion fracture rate was 4.76% (1/21), and the average healing time was 122.54 ± 11.37 days. Five patients underwent total hip arthroplasty, and the reoperation rate was 23.81% (5/21). There were significant differences in the postoperative complications, fracture healing time, and reoperation rate between the two groups (p < 0.05).

conclusionsPTSs fixation of FNF at the center, does not only avoid the destruction of blood supply in the femoral head and reduction in the incidence of postoperative complications of FNFs, but also induces early bone ingrowth and promotes fracture healing. These findings provide a potential surgical internal fixation system for treating FNFs.

Indexed as

Femoral Neck FracturesFemur Head NecrosisFractures, UnunitedFemaleFracture Fixation, InternalHumansMaleMiddle AgedPorosityPostoperative ComplicationsRetrospective StudiesTantalumTreatment OutcomeTantalumcentral fixationfemoral neck fractureporous tantalum screwspostoperative complicationsprotect blood supply

Identifiers

PMID35848152
PMCPMC9483077
OpenAlexW4285730017

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.