Evidence map›Paper›PMID 34404867›Full record

ArticleScientific reports2021

A comparative study for tension-reducing effect of Type I and Type II keystone perforator island flap in the human back.

Chi Sun Yoon, Yu Taek Kong, Soo Yeon Lim, Junekyu Kim, Hyun Woo Shin, Kyu Nam Kim

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 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

13 citing papers in PubMed, 12 citations in OpenAlex.

  1. [Clinical application of a modified double keystone design perforator island flap for repair of defects after excision of Bowen disease in posterior midline lumbar region].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026
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  7. Modified Keystone a Versatile Flap Reconstruction for Mastectomy Defects: Our Clinical Experience.Indian journal of plastic surgery : official publication of the Association of Plastic Surgeons of India · 2025
    Article
  8. Versatility of the Keystone Design Perforator Island Flaps in Resurfacing Soft Tissue Defects.Indian journal of plastic surgery : official publication of the Association of Plastic Surgeons of India · 2024
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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

6 authors at 4 institutions in 1 country.

Chi Sun Yoon *Department of Plastic and Reconstructive Surgery, Wonkwang University Hospital, Wonkwang University School of Medicine, Iksan, Korea.
Yu Taek Kong *Department of Plastic and Reconstructive Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
Soo Yeon Lim *Department of Plastic and Reconstructive Surgery, Konyang University Hospital, University of Konyang College of Medicine, Myunggok Medical Research Center, Daejeon, Korea.
Junekyu KimDepartment of Plastic and Reconstructive Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
Hyun Woo ShinDepartment of Plastic and Reconstructive Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
Kyu Nam KimDepartment of Plastic and Reconstructive Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea. manabear77@naver.com.
Kangbuk Samsung Hospital · KRKonyang University Hospital · KRSungkyunkwan University · KRWonkwang University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The keystone perforator island flap (KPIF) is popular in reconstructive surgery. However, despite its versatility, its biomechanical effectiveness is unclear. We present our experience of KPIF reconstruction in the human back and evaluate the tension-reducing effect of the KPIF. Between September 2019 and August 2020, 17 patients (51.82 ± 14.72 years) underwent KPIF reconstruction for back defects. In all cases, we measured wound tension at the defect and donor sites before and after KPIF reconstruction using a tensiometer. All defects occurred after complete excision of complicated epidermoid cysts and debridement of surrounding tissues. The defects were successfully covered with Type IIA KPIFs. All flaps survived, and there were no significant postoperative complications. The mean "tension change at the defect after Type I KPIF" and "tension change at the defect after Type II KPIF" were - 2.97 ± 0.22 N and - 5.59 ± 0.41 N, respectively, (P < 0.001). The mean "rate of tension change at the defect after Type I KPIF" and "rate of tension change at the defect after Type II KPIF" were - 36.54 ± 1.89% and - 67.98 ± 1.63%, respectively, (P < 0.001). Our findings confirm the stepwise tension-reducing effect of KPIF and clarify the biomechanics of this flap.

Indexed as

Perforator FlapPlastic Surgery ProceduresAdultAgedBackFemaleHumansMaleMiddle AgedTreatment Outcome

Identifiers

PMID34404867
PMCPMC8371087
OpenAlexW3195351388

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.