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Enhanced microfracture techniques in cartilage knee surgery: Fact or fiction?

World Journal of Orthopedics 2014年第4期5卷 444-449页

作者： Stefan Bark Tomasz Piontek Peter Behrens sabiah mkalaluh Deike Varoga Justus Gille Department of Trauma and Reconstructive Surgery University of SchleswigHolstein Campus Luebeck 23562 Luebeck Germany Rehasport Clinic 60-201 Poznań Poland Chirurgie Unfallchirurgie Notfalle und Orthopdie (CUNO) Hamburg 22045 Hamburg Germany Department of Orthopaedic and Trauma Surgery University Hospital Schleswig-Holstein Campus Kiel 24105 Kiel Germany

The limited intrinsic healing potential of human articular cartilage is a well-known problem in orthopedic surgery. Thus a variety of surgical techniques have been developed to reduce joint pain, improve joint function and delay the onset of osteoarthritis. Microfractures as a bone marrow stimulation technique present the most common applied articular cartilage repair procedure today. Unfortunately the deficiencies of fibrocartilaginous repair tissue inevitably lead to breakdown under normal joint loading and clinical results deteriorate with time. To overcome the shortcomings of microfracture, an enhanced microfracture technique was developed with an additional collagen Ⅰ/Ⅲ membrane(Autologous, Matrix-Induced Chondrogenesis, AMIC). This article reviews the pre-clinical rationale of microfractures and AMIC, presents clinical studies and shows the advantages and disadvantages of these widely usedtechniques. PubM ed and the Cochrane database were searched to identify relevant studies. We used a comprehensive search strategy with no date or language restrictions to locate studies that examined the AMIC technique and microfracture. Search keywords included cartilage, microfracture, AMIC, knee, ChondroGide. Besides this, we included our own experiences and study authors were contacted if more and non published data were needed. Both cartilage repair techniques represent an effective and safe method of treating full-thickness chondral defects of the knee in selected cases. While results after microfracture deteriorate with time, mid-term results after AMIC seem to be enduring. Randomized studies with long-term followup are needed whether the grafted area will maintain functional improvement and structural integrity over time.

关键词： Cartilage Microfracture Autologous,Matrix-Induced Chondrogenesis Knee Chondro-Gide

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