Evidence map›Paper›PMID 39881279›Full record

ArticleBMC musculoskeletal disorders2025

The effects of the positioning of a bolt in the femoral neck system on the short-term outcomes of middle-aged and young adults with displaced femoral neck fractures.

Yujie Jin, Xiaoqiang Zhou, Zhiqiang Li, Yubo Liu, Renjie Xu, Jun Shen, Xiangxin Zhang, Xiao Yu

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC musculoskeletal disorders, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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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

1 citing paper in PubMed.

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4 · The record

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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.

Yujie JinDepartment of Orthopedics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215000, China.
Xiaoqiang ZhouDepartment of Orthopedics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215000, China.
Zhiqiang LiDepartment of Orthopedics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215000, China.
Yubo LiuDepartment of Orthopedics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215000, China.
Renjie XuDepartment of Orthopedics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215000, China.
Jun ShenDepartment of Orthopedics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215000, China.
Xiangxin ZhangDepartment of Orthopedics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215000, China. lovezxx2003@qq.com.
Xiao YuDepartment of Orthopedics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215000, China. yuxiao-szmh@139.com.

Funding

The 12th batch of Suzhou Science and Technology Development Plan projects SLJ2021020The 16th batch of Suzhou Science and Technology Development Plan projects SLJ2022014The Special Program for Young Backbone Scientific Research and Cultivation of Gusu College, Nanjing Medical University GSKY20220521
6 · The paper itself

Abstract

backgroundTo analyze the effects of the positioning of a bolt in the femoral neck system (FNS) on the short-term outcomes of middle-aged and young adults with displaced femoral neck fractures (FNFs).

methodsThis was a retrospective study involving 114 middle-aged and young adults with displaced FNFs who were surgically treated with internal fixation via the FNS in the Department of Orthopedics, Suzhou Municipal Hospital, from December 2019 to January 2023. The degree of deviation of the central axis of the femoral head and neck from the tip of the bolt (W), the tip‒apex distance (TAD) and the length of femoral neck shortening (LFNS) were measured on postoperative X-ray and computed tomography (CT) scan images. Clinical efficacy was assessed with the Harris Hip Score (HHS) and the EuroQol five-dimensional questionnaire-5L (EQ-5D-5L) utility index. The enrolled patients were divided into the central group (W ≤ 20%) and deviation group (W > 20%) on the basis of postoperative W value. The quality of fracture reduction, time to postoperative weight-bearing of the affected limb, time to fracture healing, and the TAD, LFNS, HHS and EQ-5D-5L utility index at the last follow-up visit were compared between the groups. Postoperative complications and cases of revision surgery were recorded.

resultsPreoperative baseline characteristics, the quality of fracture reduction, the need for auxiliary reduction and the follow-up time were comparable between the central group and deviation group (all P > 0.05). No significant difference in the time to postoperative partial weight-bearing of the affected limb was detected between the groups (P > 0.05). Patients in the central group presented with a significantly shorter time to full weight-bearing of the affected limb, time to fracture healing, and TAD and LFNS at the last follow-up visit but a greater HHS and EQ-5D-5L utility index than those in the deviation group did (all P < 0.05). The incidence of revision surgery was significantly lower in the central group than in the deviation group (P < 0.05).

conclusionPositioning of the FNS bolt closer to the central axis of the femoral head and neck favors a shorter time to fracture healing, greater hip function and a lower incidence of revision surgery in middle-aged and young adults with displaced FNFs.

Indexed as

Femoral Neck FracturesFracture Fixation, InternalAdultFemaleFemur NeckFracture HealingHumansMaleMiddle AgedRetrospective StudiesTomography, X-Ray ComputedTreatment OutcomeWeight-BearingYoung AdultBolt positioningFemoral neck fracturesFemoral neck systemInternal fixation

Identifiers

PMID39881279
PMCPMC11776276

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LicenceCC BY-NC-ND
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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.