ChondroFiller injections cost £3,000 to £8,000 based on the number of implant boxes required, not an hourly rate, with most patients paying £3,000 for a single focal defect.ChondroFiller injections cost £3,000 to £8,000 based on the number of implant boxes required, not an hourly rate, with most patients paying £3,000 for a single focal defect.