ACI knee cartilage repair in the UKACI harvests a patient's own cartilage cells, cultures them to roughly 20 times their original number, then implants them in a second operation; NHS funding applies only to patients with defects over 2 cm², no prior cartilage repair, minimal arthritis, and access to a specialist centre.ACI harvests a patient's own cartilage cells, cultures them to roughly 20 times their original number, then implants them in a second operation; NHS funding applies only to patients with defects over 2 cm², no prior cartilage repair, minimal arthritis, and access to a specialist centre.
MACI knee surgery cost and insuranceMACI is a two-stage knee cartilage repair, so costs rise with the biopsy, lab cell expansion and later implantation rather than a single operation. In 2023, 89% of cases were approved on the first insurance submission, with approval typically taking 25–30 days.MACI is a two-stage knee cartilage repair, so costs rise with the biopsy, lab cell expansion and later implantation rather than a single operation. In 2023, 89% of cases were approved on the first insurance submission, with approval typically taking 25–30 days.