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Erschienen in: Archives of Orthopaedic and Trauma Surgery 2/2015

01.02.2015 | Arthroscopy and Sports Medicine

Matrix-induced autologous mesenchymal stem cell implantation versus matrix-induced autologous chondrocyte implantation in the treatment of chondral defects of the knee: a 2-year randomized study

verfasst von: Isık Akgun, Mehmet C. Unlu, Ozan A. Erdal, Tahir Ogut, Murat Erturk, Ercument Ovali, Fatih Kantarci, Gurkan Caliskan, Yamac Akgun

Erschienen in: Archives of Orthopaedic and Trauma Surgery | Ausgabe 2/2015

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Abstract

Background

Cell-based strategies that combine in vitro- expanded autologous chondrocytes with matrix scaffolds are currently preferred for full-thickness cartilage lesions of the knee ≥2 cm2. Although this approach is reasonable, continuing advances in the field of cartilage repair will further expand the options available to improve outcomes.

Hypothesis/purpose

In the present clinical study, we compared the outcomes of matrix-induced autologous mesenchymal stem cell implantation (m-AMI) with matrix-induced autologous chondrocyte implantation (m-ACI) for the treatment of isolated chondral defects of the knee.

Study design

Prospective, single-site, randomized, single-blind pilot study.

Methods

Fourteen patients with isolated full-thickness chondral lesions of the knee >2 cm2 were randomized into two treatment groups: m-AMI and m-ACI. Outcomes were assessed pre-operatively and 3, 6, 12 and 24 months post-operatively.

Results

Clinical evaluations revealed that improvement from pre-operation to 24 months post-operation occurred in both groups (p < 0.05). At all follow-up intervals, m-AMI demonstrated significantly better functional outcomes (motion deficit and straight leg raise strength) than did m-ACI (p < 0.05). At all follow-up intervals, m-AMI demonstrated significantly better subjective sub-scale scores for pain, symptoms, activities of daily living and sport and recreation of the knee injury and osteoarthritis outcome score (KOOS) than did m-ACI (p < 0.05). Additionally, m-AMI demonstrated significantly better (p < 0.05) scores than m-ACI for the quality of life sub-scale of the KOOS and visual analog scale (VAS) severity at the 6-month follow-up. The Tegner activity score and VAS frequency were not significantly different between the two groups. Graft failure was not observed on magnetic resonance imaging at the 24-month follow-up. m-AMI and m-ACI demonstrated very good-to-excellent and good-to-very good infill, respectively, with no adverse effects from the implant, regardless of the treatment.

Conclusion

For the treatment of isolated full-thickness chondral lesion of the knee, m-AMI can be used effectively and may potentially accelerate recovery. A larger patient cohort and follow-up supported by histological analyses are necessary to determine long-term outcomes.
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Zurück zum Zitat Stelzeneder D, Shetty AA, Kim SJ, Trattnig S, Domayer SE, Shetty V, Bilagi P (2013) Repair tissue quality after arthroscopic autologous collagen-induced chondrogenesis (ACIC) assessed via T2* mapping. Skeletal Radiol 42(12):1657–1664PubMedCrossRef Stelzeneder D, Shetty AA, Kim SJ, Trattnig S, Domayer SE, Shetty V, Bilagi P (2013) Repair tissue quality after arthroscopic autologous collagen-induced chondrogenesis (ACIC) assessed via T2* mapping. Skeletal Radiol 42(12):1657–1664PubMedCrossRef
Metadaten
Titel
Matrix-induced autologous mesenchymal stem cell implantation versus matrix-induced autologous chondrocyte implantation in the treatment of chondral defects of the knee: a 2-year randomized study
verfasst von
Isık Akgun
Mehmet C. Unlu
Ozan A. Erdal
Tahir Ogut
Murat Erturk
Ercument Ovali
Fatih Kantarci
Gurkan Caliskan
Yamac Akgun
Publikationsdatum
01.02.2015
Verlag
Springer Berlin Heidelberg
Erschienen in
Archives of Orthopaedic and Trauma Surgery / Ausgabe 2/2015
Print ISSN: 0936-8051
Elektronische ISSN: 1434-3916
DOI
https://doi.org/10.1007/s00402-014-2136-z

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