Evidence map›Paper›PMID 39276119›Full record

ArticleThe American journal of sports medicine2024

Factors Influencing Long-term Outcomes After Matrix-Induced Autologous Chondrocyte Implantation: Long-term Results at 10 Years.

Johannes Weishorn, Johanna Wiegand, Severin Zietzschmann, Kevin-Arno Koch, Christoph Rehnitz, Tobias Renkawitz, Tilman Walker, Yannic Bangert

Abstract read
In one paragraph

Article in The American journal of sports medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
–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

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

8 authors.

Johannes WeishornDepartment of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany.ORCID 0000-0003-2031-7411
Johanna WiegandDepartment of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany.
Severin ZietzschmannDepartment of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany.
Kevin-Arno KochDepartment of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany.
Christoph RehnitzDepartment of Radiology, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany.
Tobias RenkawitzDepartment of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany.
Tilman WalkerDepartment of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany.
Yannic BangertDepartment of Orthopaedics, Heidelberg University Hospital, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMatrix-induced autologous chondrocyte implantation (MACI), the third-generation of the technique, is an established procedure for the treatment of focal cartilage defects in the knee. However, the literature lacks long-term results of MACI with good statistical power. PURPOSE: To determine long-term survival and patient-reported outcomes (PROs) in a representative cohort and to identify patient- and surgery-related parameters that may influence long-term clinical outcomes. STUDY

designCase series; Level of evidence, 4.

methodsA total of 103 patients were clinically evaluated at the current follow-up of 8.1 years (range, 5-11.9 years). PRO measures (PROMs) included the Knee injury and Osteoarthritis Outcome Score (KOOS), EQ-5D, visual analog scale for pain, and Tegner Activity Scale. Magnetic resonance imaging results were evaluated by using the AMADEUS (area measurement and depth and underlying structures) and MOCART (magnetic resonance observation of cartilage repair tissue) 2.0 knee score classification systems. Potential factors influencing PROs were first identified univariately and investigated in a multivariate regression model.

resultsThe defects had a mean size of 4.8 cm

conclusionThe present study shows consistently good long-term clinical outcomes after MACI with a low revision rate and high patient satisfaction. BMI and number of previous knee surgeries may influence clinical outcomes and should be considered in patient selection and education. There is a correlation between graft structure, subchondral bone changes on magnetic resonance imaging, and long-term PROMs.

Indexed as

ChondrocytesPatient Reported Outcome MeasuresTransplantation, AutologousAdolescentAdultCartilage, ArticularFemaleFollow-Up StudiesHumansKnee InjuriesKnee JointMagnetic Resonance ImagingMaleMiddle AgedTreatment OutcomeYoung Adultautologous chondrocyte implantationcartilage defectsclinical outcomeskneeMRI

Identifiers

PMID39276119
PMCPMC11409559

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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.