Autologous Matrix Induced Chondrogenesis (AMIC) Compared to Microfractures for Chondral Defects of the Talar Shoulder: A Five-Year Follow-Up Prospective Cohort Study

Introduction: Many procedures are available to manage cartilage defects of the talus, including microfracturing (MFx) and Autologous Matrix Induced Chondrogenesis (AMIC). Whether AMIC or MFx are equivalent for borderline sized defects of the talar shoulder is unclear. Thus, the present study compare...

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Main Authors: Filippo Migliorini, Jörg Eschweiler, Nicola Maffulli, Hanno Schenker, Arne Driessen, Björn Rath, Markus Tingart
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Life
Subjects:
Online Access:https://www.mdpi.com/2075-1729/11/3/244
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author Filippo Migliorini
Jörg Eschweiler
Nicola Maffulli
Hanno Schenker
Arne Driessen
Björn Rath
Markus Tingart
author_facet Filippo Migliorini
Jörg Eschweiler
Nicola Maffulli
Hanno Schenker
Arne Driessen
Björn Rath
Markus Tingart
author_sort Filippo Migliorini
collection DOAJ
description Introduction: Many procedures are available to manage cartilage defects of the talus, including microfracturing (MFx) and Autologous Matrix Induced Chondrogenesis (AMIC). Whether AMIC or MFx are equivalent for borderline sized defects of the talar shoulder is unclear. Thus, the present study compared the efficacy of primary isolated AMIC versus MFx for borderline sized focal unipolar chondral defects of the talar shoulder at midterm follow-up. Methods: Patients undergoing primary isolated AMIC or MFx for focal unipolar borderline sized chondral defects of the talar shoulder were recruited prospectively. For those patients who underwent AMIC, a type I/III collagen resorbable membrane was used. The outcomes of interest were: Visual Analogic Scale (VAS), Tegner Activity Scale, American Orthopedic Foot and Ankle Score (AOFAS). The Magnetic Resonance Observation of Cartilage Repair Tissue (MOCART) was assessed by a blinded radiologist, who had not been involved in the clinical management of the patients. Data concerning complication rate and additional procedures were also collected. Results: The mean follow-up was 43.5 months. The mean age of the 70 patients at operation was 32.0 years, with a mean defect size of 2.7 cm<sup>2</sup>. The mean length of hospitalization was shorter in the MFx cohort (<i>p</i> = 0.01). No difference was found between the two cohorts in terms of length of prior surgery symptoms and follow-up, mean age and BMI, sex and side, and defect size. At a mean follow-up of 43.5 months, the AOFAS (<i>p</i> = 0.03), VAS (<i>p</i> = 0.003), and Tegner (<i>p</i> = 0.01) scores were greater in the AMIC group. No difference was found in the MOCART score (<i>p</i> = 0.08). The AMIC group evidenced lower rates of reoperation (<i>p</i> = 0.008) and failure (<i>p</i> = 0.003). Conclusion: At midterm follow-up, AMIC provides better results compared to MFx.
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spelling doaj.art-ae727f4648eb43759e6e14df41068b152023-11-21T10:38:38ZengMDPI AGLife2075-17292021-03-0111324410.3390/life11030244Autologous Matrix Induced Chondrogenesis (AMIC) Compared to Microfractures for Chondral Defects of the Talar Shoulder: A Five-Year Follow-Up Prospective Cohort StudyFilippo Migliorini0Jörg Eschweiler1Nicola Maffulli2Hanno Schenker3Arne Driessen4Björn Rath5Markus Tingart6Department of Orthopedics and Trauma Surgery, University Clinic Aachen, RWTH Aachen University Clinic, 52064 Aachen, GermanyDepartment of Orthopedics and Trauma Surgery, University Clinic Aachen, RWTH Aachen University Clinic, 52064 Aachen, GermanySchool of Pharmacy and Bioengineering, Keele University School of Medicine, Staffordshire ST4 7QB, UKDepartment of Orthopedics and Trauma Surgery, University Clinic Aachen, RWTH Aachen University Clinic, 52064 Aachen, GermanyDepartment of Orthopedics and Trauma Surgery, University Clinic Aachen, RWTH Aachen University Clinic, 52064 Aachen, GermanyDepartment of Orthopedics and Trauma Surgery, University Clinic Aachen, RWTH Aachen University Clinic, 52064 Aachen, GermanyDepartment of Orthopedics and Trauma Surgery, University Clinic Aachen, RWTH Aachen University Clinic, 52064 Aachen, GermanyIntroduction: Many procedures are available to manage cartilage defects of the talus, including microfracturing (MFx) and Autologous Matrix Induced Chondrogenesis (AMIC). Whether AMIC or MFx are equivalent for borderline sized defects of the talar shoulder is unclear. Thus, the present study compared the efficacy of primary isolated AMIC versus MFx for borderline sized focal unipolar chondral defects of the talar shoulder at midterm follow-up. Methods: Patients undergoing primary isolated AMIC or MFx for focal unipolar borderline sized chondral defects of the talar shoulder were recruited prospectively. For those patients who underwent AMIC, a type I/III collagen resorbable membrane was used. The outcomes of interest were: Visual Analogic Scale (VAS), Tegner Activity Scale, American Orthopedic Foot and Ankle Score (AOFAS). The Magnetic Resonance Observation of Cartilage Repair Tissue (MOCART) was assessed by a blinded radiologist, who had not been involved in the clinical management of the patients. Data concerning complication rate and additional procedures were also collected. Results: The mean follow-up was 43.5 months. The mean age of the 70 patients at operation was 32.0 years, with a mean defect size of 2.7 cm<sup>2</sup>. The mean length of hospitalization was shorter in the MFx cohort (<i>p</i> = 0.01). No difference was found between the two cohorts in terms of length of prior surgery symptoms and follow-up, mean age and BMI, sex and side, and defect size. At a mean follow-up of 43.5 months, the AOFAS (<i>p</i> = 0.03), VAS (<i>p</i> = 0.003), and Tegner (<i>p</i> = 0.01) scores were greater in the AMIC group. No difference was found in the MOCART score (<i>p</i> = 0.08). The AMIC group evidenced lower rates of reoperation (<i>p</i> = 0.008) and failure (<i>p</i> = 0.003). Conclusion: At midterm follow-up, AMIC provides better results compared to MFx.https://www.mdpi.com/2075-1729/11/3/244talusanklechondral defectautologous matrix induced chondrogenesisAMICmicrofractures
spellingShingle Filippo Migliorini
Jörg Eschweiler
Nicola Maffulli
Hanno Schenker
Arne Driessen
Björn Rath
Markus Tingart
Autologous Matrix Induced Chondrogenesis (AMIC) Compared to Microfractures for Chondral Defects of the Talar Shoulder: A Five-Year Follow-Up Prospective Cohort Study
Life
talus
ankle
chondral defect
autologous matrix induced chondrogenesis
AMIC
microfractures
title Autologous Matrix Induced Chondrogenesis (AMIC) Compared to Microfractures for Chondral Defects of the Talar Shoulder: A Five-Year Follow-Up Prospective Cohort Study
title_full Autologous Matrix Induced Chondrogenesis (AMIC) Compared to Microfractures for Chondral Defects of the Talar Shoulder: A Five-Year Follow-Up Prospective Cohort Study
title_fullStr Autologous Matrix Induced Chondrogenesis (AMIC) Compared to Microfractures for Chondral Defects of the Talar Shoulder: A Five-Year Follow-Up Prospective Cohort Study
title_full_unstemmed Autologous Matrix Induced Chondrogenesis (AMIC) Compared to Microfractures for Chondral Defects of the Talar Shoulder: A Five-Year Follow-Up Prospective Cohort Study
title_short Autologous Matrix Induced Chondrogenesis (AMIC) Compared to Microfractures for Chondral Defects of the Talar Shoulder: A Five-Year Follow-Up Prospective Cohort Study
title_sort autologous matrix induced chondrogenesis amic compared to microfractures for chondral defects of the talar shoulder a five year follow up prospective cohort study
topic talus
ankle
chondral defect
autologous matrix induced chondrogenesis
AMIC
microfractures
url https://www.mdpi.com/2075-1729/11/3/244
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