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    The content on this page is not current guidance and is only for the purposes of the consultation process.

    Unmet need

    Damage to articular cartilage is common and unlikely to heal spontaneously because the cartilage does not have a blood supply. Surgical options like microfracture can be done in 1 procedure but are designed for small lesions. Options like ACI and mACI are designed for bigger lesions but need 2 procedures a few weeks apart because cells need to be extracted and cultured before being implanted. Scaffold insertion without cultured cell implantation has the potential advantage of being a single-step procedure and may be better for larger lesions than microfracture alone.