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Archives of Orthopaedic and Trauma Surgery

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01-06-2020 | Orthopaedic Surgery

Clinical outcome and success rates of ACI for cartilage defects of the patella: a subgroup analysis from a controlled randomized clinical phase II trial (CODIS study)

Authors: Philipp Niemeyer, Volker Laute, Wolfgang Zinser, Christoph Becher, Peter Diehl, Thomas Kolombe, Jakob Fay, Rainer Siebold, Stefan Fickert

Published in: Archives of Orthopaedic and Trauma Surgery | Issue 6/2020

Abstract

Aim

Cartilage defects of the patella are considered as a problematic entity. Purpose of the present study was to evaluate the outcome of patients treated with autologous chondrocyte implantation (ACI) for cartilage defects of the patella in comparison to patient with defects of the femoral condyles.

Patients and methods

73 patients with a follow-up of 5 years have been included in this subgroup analysis of the randomized controlled clinical trial (RCT). In dependence of defect location, patients were divided into two groups [patella defects (n = 45) and femoral condyle defects (n = 28)]. Clinical outcome was evaluated by the means of the KOOS score at baseline and 6 weeks, 3, 6, 12, 18, 24, 36, 48 and 60 months following ACI.

Results

“Responder rate” at 60 months (improvement from baseline of > 7 points in the KOOS score) in patients with patella defects was 86.2%. All scores showed a significant improvement from baseline. While overall KOOS score at 60 months was 81.9 (SD 18.6) points in femoral condyle defects, a mean of 82.6 (SD 14.0) was observed in patella defects (p = 0.2483).

Conclusion

ACI seems an appropriate surgical treatment for cartilage defects of the patella leading to a high success rate. In this study, the clinical outcome in patients with patellar defects was even better than the already excellent results in patients with defects of the femoral condyle even though the study included relatively large defect sizes for both groups (mean defect size 6.0 ± 1.7 and 5.4 ± 1.6 for femur and patella, respectively).

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Title: Clinical outcome and success rates of ACI for cartilage defects of the patella: a subgroup analysis from a controlled randomized clinical phase II trial (CODIS study)
Authors: Philipp Niemeyer
Volker Laute
Wolfgang Zinser
Christoph Becher
Peter Diehl
Thomas Kolombe
Jakob Fay
Rainer Siebold
Stefan Fickert
Publication date: 01-06-2020
Publisher: Springer Berlin Heidelberg
Published in: Archives of Orthopaedic and Trauma Surgery / Issue 6/2020
Print ISSN: 0936-8051
Electronic ISSN: 1434-3916
DOI: https://doi.org/10.1007/s00402-019-03264-x

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Clinical outcome and success rates of ACI for cartilage defects of the patella: a subgroup analysis from a controlled randomized clinical phase II trial (CODIS study)

Abstract

Aim

Patients and methods

Results

Conclusion

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Aim

Patients and methods

Results

Conclusion

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