MR imaging of autologous chondrocyte implantation of the knee |
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Authors: | S L J James D A Connell A Saifuddin J A Skinner T W R Briggs |
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Institution: | (1) Department of Radiology, RNOH Stanmore, Brockley Hill, Stanmore, Middlesex, HA7 4LP, UK |
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Abstract: | Autologous chondrocyte implantation (ACI) is a surgical technique that is increasingly being used in the treatment of full-thickness
defects of articular cartilage in the knee. It involves the arthroscopic harvesting and in vitro culture of chondrocytes that
are subsequently implanted into a previously identified chondral defect. The aim is to produce a repair tissue that closely
resembles hyaline articular cartilage that gradually becomes incorporated, restoring joint congruity. Over the long term,
it is hoped that this will prevent the progression of full-thickness articular cartilage defects to osteoarthritis. This article
reviews the indications and operative procedure performed in ACI. Magnetic resonance imaging (MRI) sequences that provide
optimal visualization of articular cartilage in the post-operative period are discussed. Normal appearances of ACI on MRI
are presented along with common complications that are encountered with this technique. |
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Keywords: | Magnetic resonance imaging Autologous chondrocyte implantation Cartilage repair Articular cartilage |
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