Barriers to injecting cartilage instead of tkrdr.' s profits?

Cartilage injections: As of this date the technology does not exist for us to inject cartilage into the joint and give patients any lasting real relief. Total joint replacements are the hold standard technique for giving patient long lasting improved motion and pain relief.

Cartilage : Cartilage replantation is actually much more expensive than tkr. The reimbursement is better than tkr.