Evidence map›Paper›PMID 41381888›Full record

ArticleSurgical and radiologic anatomy : SRA2025

Morphological characteristics of the retrocalcaneal bursal wedge of Kager's fat pad.

Kodai Sakamoto, Mutsuaki Edama, Tomonobu Ishigaki, Tomoya Takabayashi, Junichi Kawakami, Taku Toriumi

Abstract read
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In one paragraph

Article in Surgical and radiologic anatomy : SRA, 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

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

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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

6 authors.

Kodai SakamotoInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Shimami-cho 1398, Kita-Ku, Niigata, 950-3198, Japan. koudai.pt@gmail.com.ORCID http://orcid.org/0000-0002-5383-3466
Mutsuaki EdamaInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Shimami-cho 1398, Kita-Ku, Niigata, 950-3198, Japan.
Tomonobu IshigakiInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Shimami-cho 1398, Kita-Ku, Niigata, 950-3198, Japan.
Tomoya TakabayashiInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Shimami-cho 1398, Kita-Ku, Niigata, 950-3198, Japan.
Junichi KawakamiDepartment of Anatomy, The Nippon Dental University School of Life Dentistry at Niigata, Niigata, Japan.
Taku ToriumiDepartment of Anatomy, The Nippon Dental University School of Life Dentistry at Niigata, Niigata, Japan.

Funding

a Grant-in-Aid for Scientific Research from the Japanese Society for the Promotion of Science (JSPS) 23H03258
6 · The paper itself

Abstract

purposeThis study aimed to clarify the morphological characteristics of the retrocalcaneal bursal wedge of Kager's fat pad (KFP-W).

methodsFifty legs from 27 cadavers were examined. The KFP-W was categorized as either a single-lobule or double-lobule type based on the presence or absence of separation into medial and lateral lobules. Separation of the retrocalcaneal bursa was evaluated based on the presence of intrabursal connective tissue. The length, width, and thickness of the KFP-W were also measured.

resultsThe single- and double-lobule types were each observed in 25 ankles (50%). In the single-lobule type, the KFP-W was positioned laterally on the superior facet, leaving a portion of the medial aspect of the facet uncovered, and no separation of the retrocalcaneal bursa was observed. In the double-lobule type, bursal separation was present in 16 ankles (64%), and the lateral lobule was significantly longer, wider, and thicker than the medial lobule (p < 0.05).

conclusionThese findings suggest that the KFP-W is primarily situated lateral to the Achilles tendon insertion, with a smaller or absent structure medially. Therefore, the medial region may exhibit reduced shock-absorbing capacity due to the less prominent KFP-W.

Indexed as

Adipose TissueAnkle JointBursa, SynovialCalcaneusAchilles TendonAgedAged, 80 and overCadaverFemaleHumansMaleMiddle AgedAnatomyFootKager’s fat padRetrocalcaneal bursa

Identifiers

PMID41381888

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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.