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Archives of Orthopaedic and Trauma Surgery

Erschienen in:

01.07.2015 | Arthroscopy and Sports Medicine

Repair of retropatellar cartilage defects in the knee with microfracture and a cell-free polymer-based implant

verfasst von: Christoph Becher, Max Ettinger, Marco Ezechieli, Christian Kaps, Marc Ewig, Tomas Smith

Erschienen in: Archives of Orthopaedic and Trauma Surgery | Ausgabe 7/2015

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Abstract

Introduction

To analyze magnetic resonance imaging (MRI) at 3T and the clinical outcome in a short-term pilot study after treatment of retropatellar cartilage defects with microfracturing and subsequent covering with the cell-free chondrotissue^® polyglycolic acid–hyaluronan implant.

Methods

Five consecutive patients after microfracturing and defect coverage with the chondrotissue^® implant immersed with autologous serum were included. After a mean follow-up of 21 months (range 11–31 months), defect fill and repair tissue quality was assessed by 3-T MRI followed by applying established MRI scoring systems. The patients’ situation was assessed using the Knee injury and Osteoarthritis Outcome Score (KOOS) and a patients’ satisfaction questionnaire.

Results

Magnetic resonance imaging showed good to excellent defect fill with complete integration. The mean MOCART score was 61 (range 50–75) points. The mean Henderson score was 7 (range 6–9) points. All patients showed subchondral bone alterations. The KOOS showed good values in all sub-categories in 4 out of 5 patients and a mean overall score of 73 (range 40–90) points. Two patients rated the outcome as excellent, two as good and one as fair. All patients would have the procedure again and recommend it.

Conclusions

In this small case series, the coverage of symptomatic retropatellar cartilage defects with the chondrotissue^® implant after microfracturing was safe and feasible with improvement of the patients’ situation at short-term follow-up.

Level of evidence

IV, case series.

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Titel: Repair of retropatellar cartilage defects in the knee with microfracture and a cell-free polymer-based implant
verfasst von: Christoph Becher
Max Ettinger
Marco Ezechieli
Christian Kaps
Marc Ewig
Tomas Smith
Publikationsdatum: 01.07.2015
Verlag: Springer Berlin Heidelberg
Erschienen in: Archives of Orthopaedic and Trauma Surgery / Ausgabe 7/2015
Print ISSN: 0936-8051
Elektronische ISSN: 1434-3916
DOI: https://doi.org/10.1007/s00402-015-2235-5

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Abstract

Introduction

Methods

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Conclusions

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