Evidence map›Paper›PMID 34465817›Full record

ArticleScientific reports2021

Additional use of anti-rotation U-blade (RC) decreases lag screw sliding and limb length inequality in the treatment of intertrochanteric fractures.

Seungbae Oh, Yong-Sik Kim, Soon-Yong Kwon, Jiyoung Jung, Chiyoung Yoon, Joo-Hyoun Song

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 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.4field-weighted citation impact, top 36% 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

4 citing papers in PubMed, 3 citations in OpenAlex.

  1. Trial
  2. [Short-term effectiveness of Gamma 3 U-Blade system for osteoporotic intertrochanteric fractures in the elderly].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2025
    Article
  3. Article
  4. 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

6 authors at 3 institutions in 2 countries.

Seungbae OhDepartment of Orthopaedic Surgery, St. Vincent's Hospital, The Catholic University of Korea, Suwon, Gyeonggi-do, Republic of Korea.
Yong-Sik KimDepartment of Orthopaedic Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea.
Soon-Yong KwonDepartment of Orthopaedic Surgery, Eunpyeong St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea.
Jiyoung JungDepartment of Orthopaedic Surgery, St. Vincent's Hospital, The Catholic University of Korea, Suwon, Gyeonggi-do, Republic of Korea.
Chiyoung YoonDepartment of Orthopaedic Surgery, St. Vincent's Hospital, The Catholic University of Korea, Suwon, Gyeonggi-do, Republic of Korea.
Joo-Hyoun SongDepartment of Orthopaedic Surgery, St. Vincent's Hospital, The Catholic University of Korea, Suwon, Gyeonggi-do, Republic of Korea. minerva522@naver.com.ORCID 0000-0002-7480-9721
The Catholic University of Korea St. Vincent's Hospital · KRSt. Mary's Hospital · USThe Catholic University of Korea Seoul St. Mary's Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The purpose of this study is to compare the cut-out rate and sliding distance associated with limb length inequality between operations using a standard non-sliding lag screw versus those using a non-sliding lag screw with U-blade (RC) in the Gamma3 nail. This is a retrospective review of two case series involving different lag screws for the Gamma3 nail. Propensity score matching analysis was used to adjust the confounding factors. A comparative analysis of 304 patients who treated with Gamma3 nail with either a standard non-sliding lag screw or a U-Blade (RC) lag screw was performed. Between 2014 and 2018, 152 patients were treated with U-blade (RC) lag screws, and these patients were matched with those treated with standard lag screws. There was no significant difference in cut-out rate between groups. However, additional use of anti-rotation U-blade (RC) could significantly decrease lag screw sliding, with the group treated with U-Blade (RC) lag screws exhibiting shorter sliding, especially in AO/OTA31 A2 and A3 fractures. Also, in A2 and A3 fractures, the mean lag screw sliding distance was greater than that seen in A1 fractures in both groups. These findings can help trauma surgeons choose the proper implant to reduce leg length inequality.

Indexed as

Recovery of FunctionAged, 80 and overBone NailsBone ScrewsFemaleFollow-Up StudiesFracture Fixation, IntramedullaryHip FracturesHumansMalePrognosisProsthesis DesignRetrospective StudiesRotationTreatment Outcome

Identifiers

PMID34465817
PMCPMC8408211
OpenAlexW3197491237

What OpenQuestion holds

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LicenceCC BY
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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.