Evidence map›Paper›PMID 29880004›Full record

ArticleJournal of orthopaedic surgery and research2018

Soft tissue microcirculation around the healthy Achilles tendon: a cross-sectional study focusing on the Achilles tendon and dorsal surgical approaches to the hindfoot.

Kajetan Klos, Boyko Gueorguiev, John Bennet Carow, Ali Modabber, Sven Nebelung, Bong-Sung Kim, Klemens Horst, Christian David Weber, Matthias Knobe

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of orthopaedic surgery and research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.2field-weighted citation impact, top 24% 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

5 citing papers in PubMed, 10 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Article
  5. 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

9 authors at 4 institutions in 2 countries.

Kajetan KlosDepartment of Foot and Ankle Surgery, Catholic Hospital Mainz, Mainz, Germany.
Boyko GueorguievAO Research Institute Davos, Davos, Switzerland.
John Bennet CarowDepartment of Orthopaedic Trauma, University of Aachen Medical Center, Aachen, Germany.
Ali ModabberDepartment of Oral and Maxillofacial Surgery, University of Aachen Medical Center, Aachen, Germany.
Sven NebelungDepartment of Radiology, University of Aachen Medical Center, Aachen, Germany.
Bong-Sung KimDepartment of Plastic Surgery, Reconstructive and Hand Surgery, University of Aachen Medical Center, Aachen, Germany.
Klemens HorstDepartment of Orthopaedic Trauma, University of Aachen Medical Center, Aachen, Germany.
Christian David WeberDepartment of Orthopaedic Trauma, University of Aachen Medical Center, Aachen, Germany.
Matthias KnobeDepartment of Orthopaedic Trauma, University of Aachen Medical Center, Aachen, Germany. mknobe@ukaachen.de.ORCID http://orcid.org/0000-0002-9166-0965
AO Foundation · CHCatholic University of Applied Sciences · DERWTH Aachen University · DEUniversitätsklinikum Aachen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDorsal approaches to the hindfoot are frequently used. Furthermore, the vascular supply is discussed as a possible cause for ruptures and degeneration of the Achilles tendon. The aim of this study was to evaluate the microperfusion of three possible posterior approaches to the hindfoot and different areas of the Achilles tendon.

methodsIn 111 subjects, a laser Doppler/white light spectroscopy was used to measure microperfusion in terms of blood flow (Flow) and capillary venous oxygen saturation (SO2) in the hindfoot and Achilles tendon. Measurements were performed at two measurement points (MP, proximal and distal) of three dorsal approaches (medial, lateral and central) and inside the Achilles tendon.

resultsMicroperfusion differed partially between the surgical approaches. The medial and the lateral approaches were significantly superior to the central approach with regard to Flow in both MP (p <  0.001), while SO2 was significantly higher at the proximal measurement point (MP 1; p <  0.001). In this area, the lateral approach was significantly superior to the medial approach regarding Flow (MP 1; p = 0.012). The Achilles tendon exhibited a significantly reduced microperfusion 5 cm proximal to the calcaneal tubercle (SO2 p = 0.001; Flow p = 0.048). Demographic factors, such as body mass index and age, had different effects. Microcirculation was partially superior in men and negatively affected by smoking.

conclusionsSoft tissue microcirculation on the lateral and medial side of the healthy Achilles tendon was better than centrally on the tendon. Proximally, the lateral approach was better than the medial approach. These circumstances could provide advantages regarding the surgical approach. The Achilles tendon exhibited significantly reduced microperfusion at the typical side of degeneration and rupture. This circumstance could be a possible cause of degenerative processes.

Indexed as

Achilles TendonMicrocirculationCalcaneusCross-Sectional StudiesFemaleHumansMaleRuptureAchilles tendonDoppler/white light spectroscopyHindfoot surgical approachHumansMicrocirculation

Identifiers

PMID29880004
PMCPMC5992692
OpenAlexW2805153083

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.