Evidence map›Paper›PMID 31144043›Full record

ArticleMedical molecular morphology2020

Three-dimensional architecture of the acetabular labrum in the human hip joint.

Ryutaro Nogami, Nobuhiro Kaku, Tatsuo Shimada, Tomonori Tabata, Hiroaki Tagomori, Hiroshi Tsumura

Abstract read
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In one paragraph

Article in Medical molecular morphology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
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, 13 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Acetabular labral reconstruction with medial meniscal allograft: preliminary results of a new surgical technique.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2022
    Article
  8. Article
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 1 institution in 1 country.

Ryutaro NogamiOita University Graduate School of Medicine Graduate School of Orthopedic Surgery, 1-1 Idaigaoka Hazama-machi, Yufu, Oita, Japan.
Nobuhiro KakuDepartment of Orthopaedic Surgery, Faculty of Medicine, Oita University, 1-1 Idaigaoka Hazama-machi, Yufu, Oita, 879-5593, Japan. nobuhiro@oita-u.ac.jp.
Tatsuo ShimadaOita College of Judo Therapy and Acupuncture-Moxibustion, 1-1 Chiyo-machi, Oita, Oita, Japan.
Tomonori TabataDepartment of Orthopaedic Surgery, Faculty of Medicine, Oita University, 1-1 Idaigaoka Hazama-machi, Yufu, Oita, 879-5593, Japan.
Hiroaki TagomoriDepartment of Orthopaedic Surgery, Faculty of Medicine, Oita University, 1-1 Idaigaoka Hazama-machi, Yufu, Oita, 879-5593, Japan.
Hiroshi TsumuraDepartment of Orthopaedic Surgery, Faculty of Medicine, Oita University, 1-1 Idaigaoka Hazama-machi, Yufu, Oita, 879-5593, Japan.
Oita University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The acetabular labrum is frequently damaged with advancing age. As collagen fibers are the main sources of strength, knowledge of their ultrastructure is important to determine the cause of age-induced changes. We aimed to investigate the ultrastructure of collagen fibers constituting the acetabular labrum using scanning electron microscopy (SEM). Acetabular labrum samples obtained during total hip arthroplasty were studied. The samples were specially prepared to observe the steric construction of collagen fibrils constituting the acetabular labrum under light microscopy followed by SEM. The acetabular labrum was mostly composed of cartilage tissue, consisting of chondrocytes and collagen type II, with a layer of collagen type I. In adults, chondrocytes with a rich cytoplasm were surrounded by a dense network of fine type II collagen fibrils, and small bundles of type I collagen fibrils were interposed in the cartilage layer. In elderly individuals, the chondrocytes atrophied and both type I and II collagen fibrils were sparse. We suggest that cartilage has three to five layers, consisting of type I and type II collagen fibrils with a solid cartilage substrate. In elderly individuals, the density of chondrocytes decreases and the cellular shape and architecture of collagen fibrils also changes.

Indexed as

AcetabulumAdultAgedAged, 80 and overAgingArthroplasty, Replacement, HipCartilage, ArticularChondrocytesCollagen Type ICollagen Type IIFemaleHip JointHumansImaging, Three-DimensionalMaleMicroscopy, Electron, ScanningCollagen Type ICollagen Type IIAcetabular labrumAgingCollagen fibersCollagen fibrilsHuman hip jointScanning electron microscopyUltrastructure

Identifiers

PMID31144043
OpenAlexW2947200182

What OpenQuestion holds

Textmetadata
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.