Evidence map›Paper›PMID 32794150›Full record

ArticleArchives of orthopaedic and trauma surgery2021

Stable clinical long term results after AMIC in the aligned knee.

Nadine Kaiser, Roland P Jakob, Geert Pagenstert, Moritz Tannast, Daniel Petek

Open access · hybridAbstract read
In one paragraph

Article in Archives of orthopaedic and trauma surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

16 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
  2. AMIC achieves sustained clinical improvement in isolated patellar cartilage defects over 5 years, correlating with MRI.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025
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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

5 authors at 2 institutions in 1 country.

Nadine KaiserUniversity Hospital of Berne, Freiburgstrasse 15, 3010, Bern, Switzerland. Nadine.kaiser@insel.ch.ORCID http://orcid.org/0000-0003-2815-5832
Roland P JakobKantonsspital Fribourg, Chemin Des Pensionnats 2-6, 1700, Fribourg, Switzerland.
Geert PagenstertCLARAHOF Orthopaedics, Clarahofweg 19a, 4058, Basel, Switzerland.
Moritz TannastKantonsspital Fribourg, Chemin Des Pensionnats 2-6, 1700, Fribourg, Switzerland.
Daniel PetekKantonsspital Fribourg, Chemin Des Pensionnats 2-6, 1700, Fribourg, Switzerland.
St. Claraspital · CHUniversity Hospital of Bern · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe aim of this study was to report a long-term follow-up of patients treated with autologous matrix-induced chondrogenesis (AMIC) for full-thickness chondral and osteochondral defects of the femoral condyle or patella combined with the correction of lower limb malalignment or patellar tracking if indicated.

methodsThirty-three patients (thirty-four knees) were treated surgically for chondral and osteochondral cartilage defects of the knee joint. Regarding the origin of the lesion, patients were divided into three groups. Chondral lesions were observed in the patella (cP group) in fifteen patients, whereas eight patients demonstrated a femoral condylar location (cF group). Eleven patients presented with osteochondritis dissecans of the femur (ocF group). Associated procedures involving realignment of the patella, osteotomy around the knee, or cancellous bone grafting were performed when necessary. The mean size of the lesions was 2.8 ± 1.6 cm

resultsAfter an average of 9.3 ± 1 years, follow-up was completed in 79% of the patients. Two patients from the cohort received a total knee prosthesis. The primary outcome measures (Lysolm and VAS pain) at 9-year follow-up were 85 ± 13 for the Lysholm score and 1.9 ± 1.6 for the VAS score in the entire analyzed population. Compared to the preoperative values (Lysholm 56 ± 19, VAS 5.8 ± 2.4) and the 2-year results (Lysholm 85 ± 16, VAS 2.0 ± 2.1), there was significant improvement in the first 2 years after intervention and a stable course in the long-term observation. The same was observed in the cP and ocF subgroups, whereas patients of the cF group showed even further improvement.

conclusionsAMIC showed durable results in aligned knees. The favorable outcome was maintained after an average of 9 years when malalignment of the lower limb and patellar maltracking were corrected. Such data are particularly encouraging for young adult patients who may benefit from a procedure that circumvents early arthroplasty.

Indexed as

Cartilage, ArticularChondrogenesisAdultFollow-Up StudiesHumansKnee JointMiddle AgedTransplantation, AutologousTreatment OutcomeYoung AdultAMICAutologous matrix-induced chondrogenesisBone marrow stimulationHTOPatellofemoral maltracking

Identifiers

PMID32794150
PMCPMC8497318
OpenAlexW3048368553

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