Evidence map›Paper›PMID 25676840›Full record

ArticleInternational orthopaedics2015

Short-term follow up after implantation of a cell-free collagen type I matrix for the treatment of large cartilage defects of the knee.

Philip P Roessler, Bernhard Pfister, Markus Gesslein, Jens Figiel, Thomas J Heyse, Christian Colcuc, Olaf Lorbach, Turgay Efe, Karl F Schüttler

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In one paragraph

Article in International orthopaedics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 7% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 1 country.

Philip P RoesslerDepartment of Orthopaedics and Rheumatology, University Hospital Marburg, Baldingerstrasse, 35043, Marburg, Germany.
Bernhard PfisterDepartment of Orthopaedics and Rheumatology, University Hospital Marburg, Baldingerstrasse, 35043, Marburg, Germany.
Markus GessleinDepartment of Trauma and Orthopaedic Surgery, Paracelsus Medical University, Nürnberg, Germany.
Jens FigielDepartment of Radiology, University Hospital Marburg, Marburg, Germany.
Thomas J HeyseDepartment of Orthopaedics and Rheumatology, University Hospital Marburg, Baldingerstrasse, 35043, Marburg, Germany.
Christian ColcucDepartment of Orthopaedics and Rheumatology, University Hospital Marburg, Baldingerstrasse, 35043, Marburg, Germany.
Olaf LorbachDepartment of Orthopaedic Surgery, Saarland University, Homburg, Saar, Germany.
Turgay EfeDepartment of Orthopaedics and Rheumatology, University Hospital Marburg, Baldingerstrasse, 35043, Marburg, Germany. efet@med.uni-marburg.de.
Karl F SchüttlerDepartment of Orthopaedics and Rheumatology, University Hospital Marburg, Baldingerstrasse, 35043, Marburg, Germany.
Philipps University of Marburg · DEParacelsus Medizinische Privatuniversität · DESaarland University · DEUniversity Hospital Bonn · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAlthough there are various new scaffold-based techniques for cartilage regeneration it remains unclear up to which defect size they can be used. The present study reports of a cell-free collagen type I gel matrix for the treatment of large cartilage defects of the knee after a two-year follow-up.

methodsTwenty-eight patients with a mean cartilage defect size of 3.71 ± 1.93 cm² were treated with a cell-free collagen type I gel matrix (CaReS-1S®, Arthro Kinetics AG, Krems/Donau, Austria) via a mini-arthrotomy. Clinical outcome was assessed preoperatively and six weeks as well as six, 12 and 24 months after surgery using various clinical outcome scores (IKDC, Tegner, KOOS, VAS). Cartilage regeneration was evaluated via MRI using the MOCART score.

resultsSeventeen male and 11 female patients with a mean age of 34.6 years were included in this study. Significant pain reduction (VAS) could be noted after six weeks already. Patient activity (IKDC, Tegner) could be significantly improved from 12 months on and nearly reached reported pre-operative values. All subject categories of the KOOS except for symptom (swelling) showed significant improvements throughout the study. Constant significant improvements of the mean MOCART score were observed from 12 months on. MR images did not yield any signs of infection or synovitis. After 24 months a complete defect filling could be noted in 24 out of 28 cases with a mainly smooth surface, complete integration of the border zone and homogenous structure of the repaired tissue.

conclusionCell-free collagen type I matrices appear to be a safe and suitable treatment option even for large cartilage defects of the knee. Results of this study were comparable to the better-established findings for small cartilage defects. Mid- and long-term results will be needed to see if clinical and MR-tomographic outcome can be maintained beyond 24 months.

Indexed as

AdolescentAdultAustriaCartilage, ArticularCartilage DiseasesCollagen Type IFemaleFollow-Up StudiesHumansKnee JointMagnetic Resonance ImagingMaleMiddle AgedProspective StudiesTreatment OutcomeWound HealingCollagen Type ICartilage repairCell-free collagen type IClinical outcomeLarge cartilage defectsMRIShort-term results

Identifiers

PMID25676840
OpenAlexW2022962316

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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.