Evidence map›Paper›PMID 39911295›Full record

ArticleOsteoarthritis and cartilage open2025

Friction of osteoarthritic cartilage with patient-specific synovial fluid: Effect of different loading conditions.

Luisa de Roy, Jonas Walter Metzger, Martin Faschingbauer, Anita Ignatius, Andreas Martin Seitz

Abstract read
In one paragraph

Article in Osteoarthritis and cartilage open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

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

2 citing papers in PubMed.

  1. Article
  2. 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

5 authors.

Luisa de RoyInstitute of Orthopedic Research and Biomechanics, Center for Trauma Research, Ulm University Medical Center, Ulm, Germany.
Jonas Walter MetzgerInstitute of Orthopedic Research and Biomechanics, Center for Trauma Research, Ulm University Medical Center, Ulm, Germany.
Martin FaschingbauerDepartment of Orthopedic Surgery, RKU, Ulm University Medical Center, Ulm, Germany.
Anita IgnatiusInstitute of Orthopedic Research and Biomechanics, Center for Trauma Research, Ulm University Medical Center, Ulm, Germany.
Andreas Martin SeitzInstitute of Orthopedic Research and Biomechanics, Center for Trauma Research, Ulm University Medical Center, Ulm, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: The objective of this study was to quantify the friction coefficients of degenerated human cartilage lubricated with patient-specific synovial fluid under four different loading regimes in order to identify those regimes that cause the highest friction. Method: Lateral tibial plateaus and synovial fluid samples were obtained from six patients undergoing total knee replacement surgery. Friction tests were performed on cylindrical samples using an established cartilage against glass tribometer. Four different loading regimes were applied, representing physiologic loads and velocities observed during daily activities. To account for effects of osteoarthritis (OA)-related alterations in the synovial fluid (SF) on friction, patient-specific SF was used as lubricant. Friction coefficients were derived from the first (μ Results: Under stance phase conditions, friction was lowest at the beginning of testing (μ Conclusion: The friction properties of degenerated cartilage samples indicated a strong dependency on the loading regime, whereby prolonged stance phase loading led to the highest time-dependent increase in friction. Moreover, our data suggested that osteoarthritic synovial fluid was sufficient to provide low cartilage friction.

Indexed as

CartilageFrictionOsteoarthritisSynovial fluid

Identifiers

PMID39911295
PMCPMC11794063

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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.