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Published in: International Orthopaedics 3/2019

01-03-2019 | Original Paper

Clinical and radiographical ten years long-term outcome of microfracture vs. autologous chondrocyte implantation: a matched-pair analysis

Authors: Robert Ossendorff, Kilian Franke, Benjamin Erdle, Markus Uhl, Norbert P. Südkamp, Gian M. Salzmann

Published in: International Orthopaedics | Issue 3/2019

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Abstract

Purpose

To compare the clinical and radiographical long-term outcome of microfracture (MFX) and first-generation periosteum-covered autologous chondrocyte implantation (ACI-P).

Methods

All subjects (n = 86) who had been treated with knee joint ACI-P or microfracture (n = 76) with a post-operative follow-up of at least ten years were selected. Clinical pre- and post-operative outcomes were analyzed by numeric analog scale (NAS) for pain, Lysholm, Tegner, IKDC, and KOOS score. Radiographical evaluation was visualized by magnetic resonance imaging (MRI). Assessment of the regenerate quality was performed by the magnetic resonance observation of cartilage repair tissue (MOCART) and modified knee osteoarthritis scoring system (mKOSS). Relaxation time (RT) of T2 maps enabled a microstructural cartilage analysis.

Results

MFX and ACI of 44 patients (24 females, 20 males; mean age 38.9 ± 12.1 years) resulted in a good long-term outcome with low pain scores and significant improved clinical scores. The final Lysholm and functional NAS scores were significantly higher in the MFX group (Lysholm: MFX 82 ± 15 vs. ACI-P 71 ± 18 p = 0.027; NAS function: MFX 8.1 ± 3.5 vs. ACI-P 6.0 ± 2.5; p = 0.003). The MOCART score did not show any qualitative differences. KOSS analysis demonstrated that cartilage repair of small defects resulted in a significant better outcome. T2-relaxation times were without difference between groups at the region of the regenerate tissue.

Conclusion

This study did not demonstrate coherent statistical differences between both cartilage repair procedures. MFX might be superior in the treatment of small cartilage defects.
Literature
2.
go back to reference Buckwalter JA, Mankin HJ, Grodzinsky AJ (2005) Articular cartilage and osteoarthritis. Instr Course Lect 54:465–480PubMed Buckwalter JA, Mankin HJ, Grodzinsky AJ (2005) Articular cartilage and osteoarthritis. Instr Course Lect 54:465–480PubMed
24.
25.
go back to reference Niemeyer P, Andereya S, Angele P et al (2013) Stellenwert der autologen Chondrozytentransplantation (ACT) in der Behandlung von Knorpelschäden des Kniegelenks - Empfehlungen der AG Klinische Geweberegeneration der DGOU (Autologous chondrocyte implantation (ACI) for cartilage defects of the knee: a guideline by the working group “Tissue Regeneration” of the German Society of Orthopaedic Surgery and Traumatology (DGOU)). Z Orthop Unfall 151(1):38–47. https://doi.org/10.1055/s-0032-1328207 CrossRefPubMed Niemeyer P, Andereya S, Angele P et al (2013) Stellenwert der autologen Chondrozytentransplantation (ACT) in der Behandlung von Knorpelschäden des Kniegelenks - Empfehlungen der AG Klinische Geweberegeneration der DGOU (Autologous chondrocyte implantation (ACI) for cartilage defects of the knee: a guideline by the working group “Tissue Regeneration” of the German Society of Orthopaedic Surgery and Traumatology (DGOU)). Z Orthop Unfall 151(1):38–47. https://​doi.​org/​10.​1055/​s-0032-1328207 CrossRefPubMed
Metadata
Title
Clinical and radiographical ten years long-term outcome of microfracture vs. autologous chondrocyte implantation: a matched-pair analysis
Authors
Robert Ossendorff
Kilian Franke
Benjamin Erdle
Markus Uhl
Norbert P. Südkamp
Gian M. Salzmann
Publication date
01-03-2019
Publisher
Springer Berlin Heidelberg
Published in
International Orthopaedics / Issue 3/2019
Print ISSN: 0341-2695
Electronic ISSN: 1432-5195
DOI
https://doi.org/10.1007/s00264-018-4025-5

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